000001714 001__ 1714
000001714 005__ 20141118153457.0
000001714 04107 $$acze
000001714 046__ $$k2007-05-14
000001714 100__ $$aStein, G. J.
000001714 24500 $$aDRY FRICTION INFLUENCE IN AN OSCILLATORY SYSTEM EXPOSED TO LOW INTENSITY RANDOM EXCITATION

000001714 24630 $$n13$$pEngineering Mechanics 2007
000001714 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000001714 506__ $$arestricted
000001714 520__ $$2eng$$aFriction influence in analysis of a single degree of freedom oscillatory system (SDOF) is either neglected or accounted for by analytical methods, assuming steady state harmonic excitation. However, these methods are not suitable when the oscillatory system is subjected to low intensity random excitation. Two approaches to friction inclusion into oscillatory system model will be explained – the commonly used approach using the signum function and a physically correct stick-slip approach consequently solving the describing set of equations in each system state. Their relative merits will be illustrated using a SDOF system subjected to low intensity random excitation. It will be shown that the best discriminator for using either of the simulation approaches is the socalled den Hartog’s factor K, relating the friction force to the excitation force. Comparison of simulation results will illustrate these findings and underline the advantages of the second approach from engineering point of view.

000001714 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001714 653__ $$a

000001714 7112_ $$aEngineering Mechanics 2007$$cSvratka (CZ)$$d2007-05-14 / 2007-05-17$$gEM2007
000001714 720__ $$aStein, G. J.$$iZahoranský, R.
000001714 8560_ $$ffischerc@itam.cas.cz
000001714 8564_ $$s418029$$uhttps://invenio.itam.cas.cz/record/1714/files/129-Stein-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000001714 962__ $$r1585
000001714 980__ $$aPAPER