000001998 001__ 1998
000001998 005__ 20141118153447.0
000001998 04107 $$acze
000001998 046__ $$k2011-05-09
000001998 100__ $$aZapoměl, J.
000001998 24500 $$aA COMPUTATIONAL ANALYSIS OF THE STEADY STATE LATERAL VIBRATION OF A FLEXIBLY SUPPORTED RIGID UNBALANCED ROTOR ATTENUATED BY SQUEEZING THE THIN FILMS OF CLASSICAL AND MAGNETORHEOLOGICAL LIQUIDS 

000001998 24630 $$n17.$$pEngineering Mechanics 2011
000001998 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000001998 506__ $$arestricted
000001998 520__ $$2eng$$aThe 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 their optimum performance, the damping effect must be controllable. For this purpose a new semiactive damping element has been proposed. It works on the principle of squeezing two concentric lubricating films formed by classical and magnetorheological liquids. In the mathematical model they are represented by newtonian and Bingham materials respectively. The damping effect is controlled by the change of intensity of the magnetic field generated by electric current. The rotor is assumed to be absolutely rigid and is coupled with the stationary part by spring elements. Its vibration is governed by nonlinear equations of motion whose steady state solution is obtained by application of a collocation method. The newly proposed semiactive damping element minimizes amplitude of the rotor vibration by adapting the damping effect to the current operating conditions.

000001998 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001998 653__ $$aRotors, semiactive damping elements, magnetorheological fluid, steady state response.

000001998 7112_ $$aEngineering Mechanics 2011$$cSvratka (CZ)$$d2011-05-09 / 2011-05-12$$gEM2011
000001998 720__ $$aZapoměl, J.$$iFerfecki, P.
000001998 8560_ $$ffischerc@itam.cas.cz
000001998 8564_ $$s745568$$uhttps://invenio.itam.cas.cz/record/1998/files/p160.pdf$$y
             Original version of the author's contribution as presented on book, page 679.
            
000001998 962__ $$r1835
000001998 980__ $$aPAPER