The Institute of Theoretical and Applied Mechanics 356 records found  1 - 10nextend  jump to record: Search took 0.02 seconds. 
1.
2.
3.
4.
5.
Abstrakt: This paper presents development oj polyuretan foam simulating model. The combination of pneumatic cylinders filled by ideal gass with polytropic change of stat [...]
6.
Abstrakt: The control of motion a robot manipulator gripper and a mobile (locomotion) robot behaviour requires the solution of the direct and inverse kinematics and dynam [...]
7.
Jirouš, F.
Abstrakt: It is shown that only a system with counter-current in- and outflow (U-type flow) can lead to an even distribution in branched systems. Calculations prove that [...]
8.
Kafka, Vratislav
Abstrakt: Inelastic macroscopic behavior of technical as well as biological materials is strongly related to their structures. Therefore, constitutive modeling of the res [...]
9.
Křen, J.
Abstrakt: The problem of the interaction between a liquid and flexible continuum occurs very often in practice. In the male urinary tract the interaction between urine an [...]
10.
Křiváková, Jarmila
Abstrakt: Článek je zaměřen na počítačové modelování stability válcových skořepin řešených dynamickou nelineární analýzou programovým souborem COSMOS/ [...]
11.
Abstrakt: The paper presents a determining of the real power characteristics of non axial loaded pneumatic spring, hydraulic damper, spring rubber stop-members and two-po [...]
12.
Abstrakt: The small aerodynamic facility with variable gas density, concentration of the airhelium mixture and flow velocity is described. Next the procedure of mixing th [...]
13.
Abstrakt: Long-term observation of bridges supported by bearings made of synthetic materials reveals a steady horizontal deformation increase of these elements. This proc [...]
14.
Abstrakt: Dynamic effects of seismic excitation and of the steam line break in the weld of the steam pipe and the steam collector during an earthquake are analyzed. Gener [...]
15.
Abstrakt: Paper presents mathematical model of two-dimensional electrolyte flow in interelectrode gap and calculation results for form electrodes with development geometr [...]
16.
Abstrakt: Method and results of numerical simulation of the elastohydrodynamic (EHD) lubrication of the profiled roller of finite length are presented. Peculiarities of t [...]
17.
Polach, Pavel
Abstrakt: A front impact against a concrete wall at the driving speed of 5 kmlh is one of the tests which are used for the verification of properties of public transport [...]
18.
Abstrakt: This paper describes a part of theoretical and experimental research dealing with the problem of the aeroelastic instability onset of slender rectangular beams [...]
19.
Říman, Pavel
Abstrakt: The primary mechanism for traffic noise reduction in existing highways is trough the use of noise barriers. The most of present used methods calculating noise b [...]
20.
Rohan, E.
Abstrakt: The paper deals with the homogenization method in the context of modelling biological tissues which undergo large deformation. The updated Lagrangian scheme is [...]
21.
Abstrakt: The procedure based on a traditional genetic algorithm (GA) is demonstrated on the price optimization of a vibrating block foundation. Unbalanced rotating mass [...]
22.
Abstrakt: In this paper the authors propose the use of generic elements as a viable tool for parametric model-based damage detection. The parameters gained by use of gene [...]
23.
Abstrakt: As in case of previous papers published on conference IM 2000, 2001 the influence of asymmetry at oscillating three-dimensional resiliently beared body, rigid p [...]
24.
Abstrakt: The transverse-axial tubular system (TAT-system) of cardiac muscle is a structure that allows rapid propagation of excitation into the cell interior. As suggest [...]
25.
Abstrakt: V přispěvku jsou předneseny nové poznatky o matematickém modelu nestacionárního proudění v rozvětvení tvaru T. Je zde naznačeno jeho odvození a jso [...]
26.
Abstrakt: Finite element analysis was attempted to modeling microcracks and overall response of solid composites (two-dimensional problem) under compression. As a mathema [...]
27.
Abstrakt: The stepping stone in evaluating effective elastic properties of woven composite tubes is an accurate geometrical description of the composite tube on meso-scal [...]
28.
Abstrakt:
29.
Abstrakt:
30.
31.
32.
Hlaváček, M.
Abstrakt:
33.
34.
Abstrakt:
35.
Abstrakt:
36.
Abstrakt:
37.
Abstrakt:
38.
39.
Abstrakt:
40.
Abstrakt:
41.
42.
Procházka, P.
Abstrakt:
43.
Abstrakt:
44.
Szykiedans, K.
Abstrakt:
45.
Tůma, J.
Abstrakt:
46.
Abstrakt:
47.
48.
Abstrakt: Two relatively independent areas of the gearing science have been distinctively outlined and considerably progressed in the last decade. The "Theory of gearing" [...]
49.
Burša, Jiří
Abstrakt: The paper compares various types of cohesion tests used in testing of adhesive connection of two materials. The computational modelling using FEM confirms that [...]
50.
Abstrakt: The aim of this contribution is to propose a new phenomenological model enabling description of non-monotonicity of shear-viscosity function for rheologically c [...]
51.
Dobiáš, Ivan
Abstrakt: The S4P programme (Science for Practice) of the Engineering Academy of the Czech Republic (EACR) concentrates on new research knowledge transfer into industry a [...]
52.
Dobiáš, Štěpán
Abstrakt: In this paper, the utilization of information systems in industrial practice will be discussed. Several kinds of information systems are used in works, but we f [...]
53.
Abstrakt: The integral concepts for calculation of the generalized stress intensity factor and elastic T stress are presented. Both the integrals are based on a validity [...]
54.
Holub, Rudolf
Abstrakt: Frequently, a manufacturer will have to demonstrate that a certain product has met a goal of certain reliability at a given time with a specific confidence. Oft [...]
55.
Abstrakt: The contribution is focused on design of multi-legged robot leg as an autonomous system. Leg is composed of the leg mechanism, 3 leg drives, sensor and control [...]
56.
Abstrakt: Relations between crack opening displacement (CTOD) and other fracture mechanics parameters are of a great importance in fracture mechanics. The basic aim of t [...]
57.
Hynek, Pavel
Abstrakt: This paper describes three modelling technique for rub related phenomena in rotor systems and compares their suitability for numerical simulation. Numerical tes [...]
58.
Kocanda, Lubomír
Abstrakt: Soft impact oscillator with one degree of freedom containing soft stop is considered. Ways of the system to a chaotic motion are dealt with. Various ways to thi [...]
59.
Abstrakt: Two medium-term experiments with lateral pressure of flowing loose sand acting on a retaining wall were performed. The experiments showed some rather unexpected [...]
60.
Abstrakt: A stability criterion based on generalized strain energy density factor for a crack terminating at the bi-material inteiface is suggested. The strain energy den [...]
61.
Abstrakt: In all power plants (classical and nuclear) are used safety relief valves. After opening of this ones the mass of fluid (gas or steam) begin to move with very h [...]
62.
Abstrakt: The traditional method of motion description of heavy machines are differential equations. In this paper for the description of tractor motion was used the meth [...]
63.
Abstrakt: The internal combustion engine development process requires CAE models which deliver results for the concept phase at very early stage and which can be further [...]
64.
Abstrakt: The paper deals with the bone tissue modelling as a micropolar continuum. Isotropic and orthotropic constitutive relations were used for the description of the [...]
65.
Šklíba, Jan
Abstrakt: This paper presents a summary of the research, focused to the dynamic problems of the driver seat, performed at the Technical university of Liberec during the l [...]
66.
Abstrakt: Filament winding is an important manufacturing technology of composite. In general, filament wound composite elements can be taken as laminated composite, but d [...]
67.
Abstrakt: In relation to previous solution of non-stationary state of stress in elastic plate excited by singular force, the solution of transversa le impact an elastic t [...]
68.
Abstrakt: To determine heat transfer coefficients on a surface, an inverse task is used that requires either measured surface temperature history or, more often, measured [...]
69.
Stress and strain distribution underneath various types of indentors can be provided by the finite element method. In the presented paper, the indentation of isotropic al [...]
70.
Blažek, A.
Abstrakt:
71.
Čulík, J.
Abstrakt:
72.
Filip, P.
Abstrakt:
73.
Abstrakt:
74.
75.
Heger, J.
Abstrakt:
76.
77.
Kršek, P.
Abstrakt:
78.
Abstrakt:
79.
80.
Abstrakt:
81.
Abstrakt:
82.
Abstrakt:
83.
Abstrakt:
84.
Abstrakt:
85.
Abstrakt:
86.
Abstrakt:
87.
Abstrakt:
88.
Abstrakt:
89.
Abstrakt:
90.
91.
92.
Iwaszko, Jerzy
Abstrakt: The formulas for calculating the air flow rate in pneumatic components given in [1 , 2, 3 J were compared. Flow rating parameters, sonic conductance C and criti [...]
93.
Abstrakt: The dimensioning of the metal-diaphragm depends on the maximum measured pressure and on necessary preload. Classic methods of elasticity were used to get some p [...]
94.
Abstrakt:
Abstract:
95.
Omes, Jiří
Abstrakt: Recently there is a large development and exploitation of hydraulic presses. Development of these presses leads to endeavour after exploitation of pulsating for [...]
96.
Peterka, František
Abstrakt: Dynamic properties of the mechanical system with one degree of freedom containing soft stop are investigated. Dynamical impact model respects the non-linearity [...]
97.
Abstrakt: The presented paper deals with procedure created for quality and reliability evaluation of ductile fracture criteria group. The base for criteria verification i [...]
98.
Švancara, Pavel
Abstrakt: Correct determination of individual SEA parameters is necessary to build a reliable SEA model. Especially for subsystems with complex geometry and material may [...]
99.
Abstrakt: Having new, very powerful tool for stress analysis in form of modem simulation methods as FEM we are able to determine stress and strain state in the examind st [...]
100.
Frantík, P.
Hypothesis about dynamical process of stability loss of high symmetrical von Misses truss in the state of unsymmetrical stress is verified by simulation of discrete nonli [...]
101.
The paper deals with the numerical simulation of a turbulent compressible fluid flow through the two-dimensional model of a gap caused by the incorrect contact of screw [...]
102.
An optimization method for the determination of elastic moduli by resonant ultrasound spectroscopy (RUS) was proposed. All components of the fourth-order tensor of elasti [...]
103.
The endeavour to use the changes of dynamic characteristics for the determination of damage or other imperfections of structures is not new. The rudimentary application o [...]
104.
Stodola, J.
Monitoring of technical condition of machines (e.g. engines) based on used oil analysis is an urgent practice to optimize control and maintenance. Both perfect wear produ [...]
105.
The paper offers a novel approach to the modeling of asphalt mixtures. It introduces a concept of so called statistically equivalent periodic unit cell (SECUP) known from [...]
106.
Zapoměl, J.
The rotor systems consit of two principal components, of a rotor and of a stationary part, and the fluid film bearings are often used as coupling elements. As the clearan [...]
107.
108.
Authors introduced a new method of processing flow visualisation images, aiming at identification of instability structures. In principle, the method utilises the structu [...]
109.
Axisymmetric circular plates subjected to stationary and transient dynamic loads are analyzed in the presented paper. Effect of viscous damping is also considered. Dynami [...]
110.
111.
Bayer, Z.
Abstrakt:
112.
Abstrakt:
113.
Abstrakt:
114.
Abstrakt:
115.
Abstrakt:
116.
Abstrakt:
117.
Abstrakt:
118.
Abstrakt:
119.
Abstrakt:
120.
Abstrakt:
121.
Abstrakt:
122.
Hostička, P.
Abstrakt:
123.
Abstrakt:
124.
Abstrakt:
125.
Kafka, V.
Abstrakt:
126.
Klášterka, H.
Abstrakt:
127.
Knoflíček, R.
Abstrakt:
128.
Abstrakt:
129.
Konečný, V.
Abstrakt:
130.
Abstrakt:
131.
Abstrakt:
132.
Abstrakt:
133.
Abstrakt:
134.
Nagy, I.
Abstrakt:
135.
Palzer, O.
Abstrakt:
136.
137.
Abstrakt:
138.
Pešlová, F.
Abstrakt:
139.
Abstrakt:
140.
Pražák, J.
Abstrakt:
141.
Přikryl, K.
Abstrakt:
142.
Abstrakt:
143.
Abstrakt:
144.
Abstrakt:
145.
Straka, J.
Abstrakt:
146.
Svoboda, B.
Abstrakt:
147.
Abstrakt:
148.
Abstrakt:
149.
Abstrakt:
150.
Abstrakt:
151.
Abstrakt:
152.
153.
154.
Žiaran, S.
Abstrakt:
155.
156.
157.
158.
159.
Abstrakt:
160.
161.
Abstrakt: The paper deals with an open channel flow around model of a bridge when the water depth is higher than height of the bridge opening. Both the pressured flow thr [...]
162.
In mining regions a great hazard for masonry and concrete residential buildings are semiseismic earth tremors, which potential energy could achieved 1010 [J]. Only non-cr [...]
163.
Abstrakt: One of the main requests in engineering practice is to have an effective design procedure of a reinforced concrete continuous beam. This task is a multidimensio [...]
164.
165.
Cyclic strain of tyres leads to hysteresis loses. Long-term and repeated deformation damages tenacity of composite structure of tyre, which causes destruction of tyre. Ra [...]
166.
The contribution presents experimental investigation of the frequency modal, damping and stress wave propagation characteristics and finite element (FE) mode ling of the [...]
167.
A 3D finite element model of the human larynx including the vocal folds was developed. The model enables to take into account phonation position (tension and adduction) o [...]
168.
The paper deals with mathematical modelling of vibration and modal analysis of an individual wheelset drive with a hollow graduated shaft. The method is based on the syst [...]
169.
Paper focuses on possibilities of transient processes modelling at pressure pipe system of a non-nuclear part of a certain power plant and summarizes the results of relat [...]
170.
The paper is devoted to dynamical analysis of a railway vehicle motion along a direct waved railway. A mathematical model of this discrete multibody system that consists [...]
171.
Changes of mechanical properties, namely of modulus of elasticity, often play a role of damage accumulation indicators in the framework of fatigue behaviour of composite [...]
172.
Puklický, L.
Steel-concrete composite columns are extensively used in modern buildings. Steel being of high tensile strength presents a high quality building material, concrete on the [...]
173.
Šolín, P.
Abstrakt:
174.
175.
Abstrakt:
176.
177.
Abstrakt:
178.
Abstrakt:
179.
Abstrakt:
180.
Abstrakt:
181.
Abstrakt:
182.
Abstrakt:
183.
Moláček, L.
Abstrakt:
184.
Abstrakt:
185.
Omes, J.
Abstrakt:
186.
Abstrakt:
187.
Abstrakt:
188.
Soldát, J.
Abstrakt:
189.
Abstrakt:
190.
Abstrakt:
191.
Abstrakt:
192.
Abstrakt:
193.
Abstrakt:
194.
Zolotarev, I.
Abstrakt:
195.
196.
Abstrakt:
197.
198.
199.
One of the possibility, how to reduce amplitude of transversal vibration of rotors is to put together their rotating and no-rotating part by the squeeze film damper. This [...]
200.
The paper suggests a new approach of inverse analysis to obtain parameters of FEM computational model in order to obtain best agreement with experimental data. The propos [...]
201.
The hypothesis was stated, that the relaxation oscillation emerge in the surface layers of wheel and rail, by the accelerating and braking period of the rail vehicles. Th [...]
202.
Ductile fracture criteria are used for fracture prediction in metal forming processes. In this paper, there is briefly described the method of criteria verification and t [...]
203.
Bach, P.
The paper deals with stability conditions of milling machine tools. As instability a self-excited vibration development, called chatter, under certain cutting conditions [...]
204.
Hole drilling method is a total numerical simulation of tension or bending loading of two types of beam specimens. The FEM model of the special drilling strain gauge rose [...]
205.
Ferfecki, P.
For the purpose of efficient diagnostics of fault conditions the influence of transverse fatigue crack on dynamical behaviour of a rotor system supported by active magnet [...]
206.
Impact of the military or civil aircraft on the containment of nuclear power plants of new generation stall be solved mandatory as the part of the Final Safety Analysis R [...]
207.
This paper presents a part of research of the gyroscopic stabilizer and describes a gyroscopic stabilizer correction and compensation system. Consequently identification [...]
208.
The paper is focused on analysis of changes of eigenfrequencies due to local damage in beam buckling problem. The aim is determination of suitable initial parameters for [...]
209.
Large amplitude vibrations of cylindrical structural elements are observed when under the simultaneous action of wind and rain. Due to the action of wind and rain a trans [...]
210.
Bubák, A.
Abstrakt:
211.
212.
Hora, P.
Abstrakt:
213.
Abstrakt:
214.
Abstrakt:
215.
Abstrakt:
216.
Abstrakt:
217.
Abstrakt:
218.
Abstrakt:
219.
Porteš, P.
Abstrakt:
220.
Abstrakt:
221.
Půst, L.
Abstrakt:
222.
Abstrakt:
223.
Abstrakt:
224.
Abstrakt:
225.
Abstrakt:
226.
227.
228.
Abstrakt:
229.
Pešek, Luděk
Abstrakt: Pro identifikace parametru slabych nelinearit disipacnich vrstev byly rozsireny stavajici numericke metody a odladeny numericke programy pro pripad nelinearniho [...]
230.
Abstrakt: This contribution deals with the functional description and initial setting of the Reactor Vibration Monitoring System (RVMS) that is supplied as a part of the [...]
231.
Vítek, Karel
Abstrakt: Computational approach to structural or limit state assessment needs better knowledge of material qualities as one of the basic inputs. The methodology of deter [...]
232.
Zapoměl, Jaroslav
Abstrakt: Properties of fluid film bearings are significantly influenced by the shape of the cross section of the holes in the bearing shells. In computational models the [...]
233.
Abstrakt: A parametric optimization of the gearbox in steady vibration excited by gear kinematics transmission errors is presented. The process is based on the gearbox de [...]
234.
Physical and chemical changes in quasibrittle materials loaded with high temperature affect the fracture mechanical behavior of structures. Threepoint bending tests of no [...]
235.
Půst, L.
The more precise mathematical models of dynamic systems must contain also more exact description of sources of excitations. The paper deals with the analysis of electric [...]
236.
During the last decades, the finite element method has become the most powerful structural analysis tool and it allows using of more and more sophisticated material mode [...]
237.
One possibility how to decrease lateral vibration of rotors excited by imbalance of the rotating parts is to couple the shaft with the stationary part through squeeze fil [...]
238.
The Pulse Width Modulation is always accompanied by an output voltage distortion. This is caused by voltage drops on real switching elements and also by using of the nece [...]
239.
This paper describes mathematic model of C-axis over mentioned machine. C-axis is controlled with position feedback and its mathematic model is determined for observation [...]
240.
The paper deals with the optimization of parameters (mass parameters of stiff bodies) of the dynamic model of the reactor WWER 1000 support cylinder. Within the model of [...]
241.
An investigation of the vertical vibration of the 3D vehicle model with asymmetry suspension, under damping and mass distribution at vehicle crossing over a system of the [...]
242.
Král, J.
A long-term measurement of the wind response of the first building started in 2007and of the second building in 2009. The response monitoring is automatic and continues. [...]
243.
This paper presents a water hammer experiment performed on an physical model of blood vessel. Physical model of blood vessel was manufactured from latex tubes textile rub [...]
244.
Podešva, J.
The modeling of the mechanical structures with large number of degrees of freedom (DOF) was in the past the problem of the machine time and disk space. On the today’s h [...]
245.
246.
Abstrakt:
247.
Macura, P.
Abstrakt:
248.
Musil, M.
Abstrakt:
249.
Abstrakt:
250.
Peterka, F.
Abstrakt:
251.
Píštěk, V.
Abstrakt:
252.
Stříž, B.
Abstrakt:
253.
Abstrakt:
254.
Abstrakt: The long-term behaviour of a crystalline rock has been modelled as a viscoplastic problem. The Perzyna type of material models, which is based on socalled overs [...]
255.
Abstrakt: This report analyses the possibility of the computional modeling of nonlinear elastic orthotropic materials in FEM system ANSYS, which does not have any finite [...]
256.
Malenovský, E.
This contribution deals with the overview of methods, which are used for analysis of dynamic behavior of rotor dynamics systems. The main of background research topics ar [...]
257.
The paper deals with practical experience with measurement of acoustic power of the model - annular plate – while using plate absorptive dampers of the same area dimens [...]
258.
Haluza, M.
In this article terms for calculation of pressure specific energy in the impeller are derived. Distribution of pressure in the runner outlet is calculated. The influence [...]
259.
To a basic one-mass self-excited system a tuned absorber is attached the motion of which is influenced by soft impacts. The self-excitation is considered as of van der Po [...]
260.
Choice of a convenient constitutive model for computational modelling of soft tissues is an important assumption of model reliability. The optimal shape of constitutive e [...]
261.
Drobný, V.
Reference model means simplified mathematical vehicle model which describes vehicle lateral dynamics. The output of the reference model produces the most optimal trajecto [...]
262.
This contribution deals with computation of stiffness and damping coefficients of aerostatic bearings. Model of bearings is based on Reynolds equation for compressible m [...]
263.
Koudelka, P.
The Institute of Theoretical and Applied Mechanics gathers long time (from 1997) identification data and shear resistance data of soils into a database. The database make [...]
264.
Chaos and chaos theory is a field of study in mathematics, computer sciences, electronics, physics and also engineering too. In our article will be explored chaotic behav [...]
265.
The paper describes a modelling technique of tool rest of modern machining centre with focus at damping of dovetail groove slideway. Damping of tool rest structure strong [...]
266.
Abstrakt:
267.
Dobiáš, Š.
Abstrakt:
268.
Dvořák, R.
Abstrakt:
269.
Abstrakt:
270.
271.
Abstrakt:
272.
Kalous, J.
Abstrakt:
273.
Abstrakt:
274.
Rosenberg, J.
Abstrakt:
275.
Abstrakt:
276.
Abstrakt: The paper deals with evaluation and analyzing of stresses in rubber cylindrical specimen which was twisted up to large deformation. Ogden hyperelastic nonlinear [...]
277.
278.
279.
In this paper we present an identification method of microplane model parameters from results of experiments in a uniaxial deformation on concrete. Novelties are usage of [...]
280.
281.
Our recent experiments on filament-wound composite tube showed that unidirectional and cross filament-wound composite tubes had non-linear behaviour even under axial load [...]
282.
The possibility of localising and quantifying a damage in a vibrating structure based on measured vibration amplitudes of the first harmonic in some locations of the stru [...]
283.
The contribution deals with the straight sandwich bar element derived by new nonincremental full geometric nonlinear approach. We assume a twonode straight sandwich compo [...]
284.
Corrosion of reinforcing steel in concrete is one of the most influencing factors causing the degradation of reinforced concrete structures, conducting to concrete crack [...]
285.
In our country and in the other parts of the world exists number of masonry bridges. Their limit loading capacity is not known today. It is very important to make simulat [...]
286.
Soft tissues are pseudoelastic materials, modelled mostly as hyperelastic. In this theory, the non-linear relations between stress and strain components are described by [...]
287.
This paper describes the nonlinear analysis of the reinforced concrete wall of the bubbler tower (BT) due to extreme pressure and temperature loading. The behaviour of th [...]
288.
A stage with impulse blading on a drum rotor is considered. Steam leakage through the shroud and shaft sealing has been determined by means of a numerical simulation. The [...]
289.
290.
Abstrakt: The excited one degree of freedom mechanical system with soft impacts, characterised by triangle hysteresis loop, is investigated using numerical simulation. Sm [...]
291.
Abstrakt: The paper describes methods of hard cutting spiral bevel and hypoid gears. From the G leason system TAN -TR U method and conventional generating methods using c [...]
292.
Algorithm of locally weighted regression is presented in this contribution. Local approximator repeatedly uses the locally linear model based on least square method. Simu [...]
293.
294.
In the present contribution, a numerical simulation of the nonlinear behaviour of the Charles Bridge in Prague with the emphasis on the heterogeneous character of the mat [...]
295.
To be able to influence the vibration of real structure it is necessary to identify its dynamic behaviour. Identification of modal parameters can be done by means of comp [...]
296.
The paper presents the description of behavior of selected soils subjected to relatively high hydraulic gradients based on experimental results. The influences of all maj [...]
297.
Presented paper is concerned with the numerical modeling of quasibrittle materials such as concrete. Brancherie and Ibrahimbegovic are authors of a simple model capable o [...]
298.
Malášek, J.
State of stress identification consists of these parts – of miniaturised pressure sensors in matrix arrangement and of a special strain-gauge bridge – this is a compl [...]
299.
The masonry constructions are widely used for a long time. Nowadays, new masonry structures are on demand owing to its variety and appealing mechanical properties. Both b [...]
300.
Identification of material parameters of finite element nanoindentation model is discussed in this paper. Nanoindentation is relatively new experimental method, which a [...]
301.
The present world development of mobile machines leads to a highpowered high-speed constructions with minimum dimensions and masses. By such light high-speed systems as a [...]
302.
Engineering structures subjected to dynamic loading are often equipped with special devices proposed to suppress adverse motion. However, these installations are often d [...]
303.
Byrtus, M.
The paper summarizes the method of nonlinear normal modes (NNMs) which has gained importance in nonlinear dynamics. Two main definitions of NNMs are discussed: Rosenberg' [...]
304.
Vítek, K.
The idea of the presented numerical simulation technique corresponds to the E 837 standard concepts but is more universal. It transforms the strains, arising during the h [...]
305.
The vibration amplitude of rotors excited by imbalance can be significantly reduced if damping devices are inserted between the rotor and its stationary part. To achieve [...]
306.
Abstrakt:
307.
308.
Abstrakt: The impact motion of rigid rotor supported on passive magnetic bearings is studied. Impacts on passive magnetic bearings are investigated. Impacts occur in reta [...]
309.
310.
This contribution describes the experimental indirect identification method for linear damped dynamic systems with multiple inputs and multiple outputs (so called MIMO sy [...]
311.
In this paper we discuss the use of adaptive methodology in non-linear analysis based on Finite Element Method. It is focused on static problems of elastoplasticity. Beca [...]
312.
The beam with an axial force is coupled by an elastic layer of Winkler type with the pretensiled string. It is subjected to a row of moving forces. The theoretical model [...]
313.
The paper is focused on damage identification of dynamically loaded structures using methods of soft computing including artificial intelligence. The damage and variabili [...]
314.
Slender structures exposed to wind influences are subjected to a random component of the pressure generated by a fluctuation part of the wind velocity. The structure it [...]
315.
The tilting pad bearings are very often applied in high speed rotating machines. The exact solution of bearing characteristics, including the motion of tilting pads, is v [...]
316.
In order to simulate a launch, all space instruments undergo a vibration tests. Due to the fixing points in vibrating machines being different, adapters are used for each [...]
317.
The analysis of dynamics of time heteronymous weakly and strongly non-linear planetary transmission systems with kinematic couplings – gears constitutes a study of comp [...]
318.
The paper analyzes the influence of initial imperfections on the load-carrying capacity of a slender strut, applying the ANSYS programme. The geometrical and material non [...]
319.
Abstrakt:
320.
The paper deals with the modelling of balancing machine vibration and the identification of the stiffness and damping coefficients of oil-film bearings. The real balancin [...]
321.
Pečínka, L.
Analysis of the dynamic response of the beam under moving load and axial periodic force and with constant damping result in well known solution of Mathieu equation. In fa [...]
322.
The paper presents the latest results of modeling of the erosion effects of cavitation bubbles on the blades of a water pump. Cavitation erosion is caused by the collapse [...]
323.
Votrubec, R.
This Paper deals with an identification of a damper with magnetoreological fluid. A global characteristic is used for description of damping force, that depends on veloci [...]
324.
The impact effects in gear mesh represent specific phenomena in the dynamic investigation of highspeed light transmission systems with kinematic couplings. They are cause [...]
325.
Lepš, M.
The problem of an inverse analysis occurs in many engineering tasks. The task itself has several different forms and can be solved by a variety of methods. In this paper, [...]
326.
The paper describes effects of end wall shaping in guide blades on steam turbine stage efficiency. CFD and measurement of straight blade cascades in a wind tunnel were pe [...]
327.
Now a day, many types of seat used in working machines are constructed for vibroizolation in vertical direction. Seat vibrations in longitudinal and lateral directions ar [...]
328.
A theoretically correct algorithm for nonlinear constitutive matrix of shell is introduced. The derivation starts with general formulas defining the constitutive matrices [...]
329.
Approach for determination of the dynamic behavior of an elastic body submerged in fluid is presented in this contribution. Method is based on independent solution of the [...]
330.
The presented paper describes the process of determination of eigen shapes and eigen frequencies of the structure with non-linear joint. The presented method uses three d [...]
331.
Flexural vibrations of rotating disk contain forward and backward traveling waves can be excited at certain speed of rotating disk also by a standing constant single poin [...]
332.
The paper deals with the modeling and evaluation of stability conditions of the balanced rotating system with rigid discs supported on two anisotropic hydrodynamic bearin [...]
333.
Abstrakt:
334.
Frequency modal and damping characteristics of an aeroelastic model designed for experiments in the wind tunnel are studied. Based on the experimental modal analysis the [...]
335.
The paper is focused on statistical inverse analysis of material model parameters, where statistical parameters of input parameters have to be identified based on experim [...]
336.
The point of this paper is the comparison between the different kind of shapes turbine blades in relation to efficiency of the stage. The first part of the paper deals wi [...]
337.
Abstrakt:
338.
Abstrakt:
339.
Škuderová, A.
Abstrakt:
340.
Presented paper deals with computational fatigue strength prediction of high pressure level steam turbine blade pin joints. Quazi-static FE analysis of one turbine disk s [...]
341.
Experimental investigation of profile and secondary losses is presented here. The loss coefficients of different types of blade cascades are evaluated, the efficiency of [...]
342.
This paper presents a simulation of 3D curved crack propagation in a steam turbine blade lock. These fatigue cracks are often initiated near a blade root contact zone. Tw [...]
343.
This paper is concerned with mathematical modeling of the imperfect bladed disk with friction elements, which are used to suppress blade vibration. These kinds of systems [...]
344.
Abstrakt:
345.
Pešek, L.
Abstrakt:
346.
Abstrakt:
347.
A new method of blade design based on the previously determined meridional velocity field is introduced in this contribution. The aim of calculation is the spatial shape [...]
348.
The point of contribution consists in the analysis of linear and nonlinear damping influence on the dynamic properties of the specific case of pseudoplanetary system with [...]
349.
The paper presents the modal synthesis method for a mathematical modelling of rotating bladed disk vibration. The standard finite element software does not allow to cons [...]
350.
This paper is concentrated on modelling of friction effects in bladed disk of steam turbine, which are realized by means of friction elements placed between blades shroud [...]
351.
This paper is aimed at reducing vibrations of bladed disk in particular operating state. The damping element used in this contribution is realized by a strap with isoscel [...]
352.
Abstrakt:
353.
354.
355.
356.
Balda, M.
Abstrakt:

Haven't found what you were looking for? Try your search on other servers:
recid:90 in Amazon
recid:90 in CERN EDMS
recid:90 in CERN Indico
recid:90 in CERN Intranet
recid:90 in CiteSeer
recid:90 in Google Books
recid:90 in Google Scholar
recid:90 in Google Web
recid:90 in IEC
recid:90 in IHS
recid:90 in INSPEC
recid:90 in INSPIRE
recid:90 in ISO
recid:90 in KISS Books/Journals
recid:90 in KISS Preprints
recid:90 in NEBIS
recid:90 in SLAC Library Catalog