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Abstrakt: This paper presents development oj polyuretan foam simulating model. The combination of pneumatic cylinders filled by ideal gass with polytropic change of stat [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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Morávka, Štefan
Abstrakt: The paper follows with the preceding works dealing with the research of the tranzient elastic waves propagation in bodies with basic constructional forms (i.e. [...]
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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 [...]
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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 [...]
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Abstrakt: Method and results of numerical simulation of the elastohydrodynamic (EHD) lubrication of the profiled roller of finite length are presented. Peculiarities of t [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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Abstrakt: Filament winding is an important manufacturing technology of composite. In general, filament wound composite elements can be taken as laminated composite, but d [...]
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This article is focused on the computational solution of the material tests and their evaluations. Problem deals with torsion low-cycle fatigue tests of steel specimens. [...]
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Hejman, M.
The article describes principles of creation and application of virtual roadway. Differences between fatigue damage due to big unevenness and homogeneous part of roadway [...]
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This paper deals with a computer simulation of coupled heat and moisture transfer in a reactor vessel which affected shrinkage and creep of the structure. The mathematica [...]
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Localization of the robot is a task of estimating robot position in known environment from sensor observation. The paper describes basic principles of Markov localization [...]
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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 [...]
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The aim of the paper is the application of the finite element method in modelling of the problems of piezoelectric and ferroelectric structures. Model is applied in model [...]
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Cement paste is the important component of other engineering heterogeneous materials, such as various kinds of concrete. Using the micromechanic approach, intrinsic elast [...]
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Tuhovčák, O.
This paper presents evolution of the reduction method for solution of natural frequencies of mechanical systems. The purpose of the reduction method is to reduce the numb [...]
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Vlach, R.
The paper is concerned with computational simulation of stator winding heating of synchronous machine. A parametric model where is possible change design of machine. Soft [...]
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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 [...]
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This work is founded on the co-operation of Czech Technical University in Prague, Faculty of Mechanical Engineering, Laboratory of Biomechanics of Man and the First Facul [...]
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This paper deals with the design of inverse kinematic model in software MATLAB-SIMMECHANICS. Presented approach is applied to particular robotic mechanism, the panthograp [...]
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Recently, several collapses of assembled floors with large clay units took place in the Czech Republic. The failures are occurring in certain period after finishing of co [...]
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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 [...]
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This paper presents discrete optimization of reinforced concrete structures based on an efficient combination of deterministic and stochastic optimization strategies. The [...]
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Using the finite element method for computational modelling thermal field at local annealing of casting after welding repair. Results time dependent thermal field using f [...]
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Zelenka, J.
This article describes the method of modelling the operation of a unit of the 680 series on a concrete section of the corridor of the Czech Railways and the height and di [...]
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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 [...]
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This paper turns attention to the potential of the simulation based reliability assessment method SBRA considering especially the durability assessment of steel structure [...]
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The article reports on development of finite element models of human skull used in investigation of extreme stress state during a traffic accident. The procedures used in [...]
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Kalous, J.
The 3rd generation mobile power sets operate at variable speed of the primary injection engine - generator aggregate dependent on their current loading. It results in rel [...]
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Poživilová, A.
Hyperelastic material model based on the logarithmic description is implemented in the finite element code. Procedure for the calculation of all the necessary quantities [...]
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The objective of this paper is present the development and application of FEM software (ICS FEM) for effective numerical simulation of load-bearing capacity of structures [...]
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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 [...]
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Klečka, R.
The paper deals with a problem of control directional vehicle stability using a method that is known as hardware-in-the-loop simulation. In MATLAB/Simulink I designed the [...]
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The paper is focused on damage identification of dynamically loaded structures using methods of soft computing including artificial intelligence. The damage and variabili [...]
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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 [...]
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Šifner, O.
The overview article characterizes briefly the main types of equations of state, namely, the cubic, virial, Benedict Webb Rubin equation, its modifications and the multip [...]
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The paper deals with material models calibration from experiment tests on cylindrical bar. There are calibrated four ductile damage criteria, which seem to be generally w [...]
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The mechanical testing and numerical modeling of the small punch test on miniature disks from heat resistant steel type ČSN 41 5313 were performed. Current intensive met [...]
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This article deals with three different factors which can influence the accuracy of the stress-strain data of elastomers measured with a biaxial testing rig. In terms of [...]
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ŠKODA VÝZKUM s.r.o. cooperated at the development of the NEOPLAN RQ low-floor bus intended for the Boston city (the United States). Multibody models and finite element [...]
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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 [...]
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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 [...]
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Fischer, C.
In many research fields the numerical problems demand extremely large computational power. As a consequence, researchers are constantly demanding new and more powerful co [...]
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The following article presents the results of analysis of slender bridge structure to dynamic loads induced by movement of people. Further is emphasized the importance of [...]
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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 [...]
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Weirs belong to one of most common water structures. Various shapes of weirs are used at various conditions (e.g. emergency spillway, river weir, volumetric weir, etc.). [...]
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Dynamic fragmentation (disintegration of continuous body into smaller pieces under dynamic loading) is a physical phenomenon observed in many fields of engineering and sc [...]
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The concrete is one of the oldest materials used in the building industry for ages. The models of this material are often designed to capture the behaviour of real constr [...]
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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 [...]
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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 [...]
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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 [...]
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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 [...]
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Abstrakt: The excited one degree of freedom mechanical system with soft impacts, characterised by triangle hysteresis loop, is investigated using numerical simulation. Sm [...]
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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 [...]
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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 [...]
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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 [...]
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The paper deals with problems related to computational modelling of stress-strain states in vascular smooth muscle cells (SMCs). Problems of their structure, geometry, co [...]
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This paper presents the work performed by the Institute of Aerospace Engineering, Brno University of Technology. Purpose of the project was to compare the results obtaine [...]
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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 [...]
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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 [...]
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Socha, J.
The contribution deals with the mathematical modelling in the field of vehicle directional behaviour. The complex model of the bus has been created to analyse its directi [...]
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The paper shows some of the capabilities, advantages, disadvantages and restrictions for car boogie systems simulations on several examples concerning implementation of t [...]
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The paper shows possible modelling method of selected type of track. Selected type of track is a combat vehicle track. The paper describes creation of computational mode [...]
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The paper deals with a possibility of a use of the final elements method (FEM) for tube bending simulations. The created FEM models of the bending assembly and a tube use [...]
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The problems of analysis, modelling and simulation of drive systems are solved on Institute of Mechanics of Solids for over 20 years. During that time period not only the [...]
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The paper deals with simulation of an electromagnetic vibration power generator. The vibration power generator harvests electrical energy from ambient energy of the mecha [...]
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The contribution presents numerical as well as experimental investigations of laminar and turbulent pulsating flow in an initial part of a rigid pipe. The simulations wer [...]
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Jandora, R.
Problem of wheelset rolling on rails is commonly solved problem of engineering practice. Only ideal geometry of the wheelset is used in majority of studies to simulate it [...]
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Losík, V.
So far the static as well as dynamic aeroelastic tasks have been commonly solved by using linear models of fluid flow (p-k method, DLM) implemented e.g. in system MSC.Nas [...]
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Corrosion of reinforcing steel in concrete is one of the most influencing factors causing the degradation of reinforced concrete structures, conducting to concrete crack [...]
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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 [...]
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The paper deals with the development of biomechanical model in order to simulate a man walking over the elastic bridge and the interaction of both objects. The current ci [...]
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This paper deals with the probabilistic model of wheel robot motion. Such probabilistic model is often used in navigation algorithms for prediction of the real position o [...]
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The paper deals with the approach to modelling and optimization of turbine generators whose bodies have primarily non-symetrical geometry and stiffnesses in two perpendic [...]
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Schuster, M.
This paper is a short overview of engineering approach to study rail vehicles aerodynamics and aerodynamic interaction between the trains and vicinity infrastructures. Sh [...]
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The article describes design of vehicle track computation model and basic testing step of dynamic loading simulation of the track. The model is built for computational si [...]
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The paper presents CFD simulation of flow over a wavy surface for selected geometric configurations and external flow velocities. The simulation characteristics and resul [...]
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This paper is focused on evaluation and comparison of air-air heat exchangers of plate type used for retrieving the heat from the waste air. The first part of this paper [...]
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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 [...]
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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 [...]
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Abstrakt: The paper deals with evaluation and analyzing of stresses in rubber cylindrical specimen which was twisted up to large deformation. Ogden hyperelastic nonlinear [...]
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Abstrakt: The presented paper deals with procedure created for quality and reliability evaluation of ductile fracture criteria group. The base for criteria verification i [...]
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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 [...]
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The creation of direct kinematic model is relatively simply in contrast with creation of analytic inverse model. With using of approximating methods is inverse modelling [...]
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This paper presents the consideration on the change judgement of J integral and Q parameter as the base parameters of two-parameter elastic-plastic fracture mechanics. An [...]
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The aim of this project is to refer to numerical problems which are likely to occure during simulations of multibody systems. We would like to give some tips to avoid con [...]
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The presented paper documents the concept and some major results of the heat transfer and stress analyses performed on a cylinder and a cylinder head of an aircraft pisto [...]
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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 [...]
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The paper shows possible modeling method of selected type of track. Selected type of track is a combat vehicle track. The paper describes creation of computational model [...]
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The purpose of this contribution is to introduce a comparison of two Finite Element-based methods for computing the mechanical response to (thermo)mechanical loading of c [...]
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Despite long evolution dating long time back, fracture processes still remain a big challenge for engineers and researchers all over the world. Lately, together with “t [...]
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The paper describes one of possible design way of vehicle track computation model and basic steps of dynamic loading simulation of the vehicle track. The computational mo [...]
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The differential equation of collapse of a high building is derived taking into account many influences. Computer simulation of the collapse of the WTC building is presen [...]
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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 [...]
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The paper deals with mathematical modelling of vibration and modal analysis of a four-axle locomotive with two bogie. Each bogie has two individual wheelset drives. The m [...]
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The Leonov model, where the Eyring flow model is used to represent the plastic shear rate of the deformation of a material, appears to be a proper choice for the descript [...]
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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 [...]
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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 [...]
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Identification of material parameters of finite element nanoindentation model is discussed in this paper. Nanoindentation is relatively new experimental method, which a [...]
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284.
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Pohanka, M.
Direct measurements of boundary conditions in application such as descaling or hot rolling in steel industry or in experiments that simulates these processes are impossib [...]
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Seven ductile fracture criteria are applied to simulation of cold forward extrusion and their performance in prediction of chevron cracks is presented. The criteria are i [...]
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