Research on the Identification of Nonlinear Internal Damping and Kinematical Joint Damping of Mechanical Systems

Autor:	Ziying Wu, Daning Yuan, Lilan Liu, Hongzhao Liu
Rok vydání:	2005
Předmět:	Vibration Physics Nonlinear system Damping ratio Thermoelastic damping Coulomb damping Differential equation Magnetic damping Mechanics Damping torque
Zdroj:	Tribology.
DOI:	10.1115/imece2005-80165
Popis:	A simultaneous identification method of the nonlinear internal damping of alloy material and the Coulomb friction in the kinematical joints in a mechanical system is put forward in this paper. The free vibration differential equation of a vibration system with these two kinds of damping is established. According to the free vibration response signal, the nonlinear internal damping characteristic curve and the Coulomb friction are got by using the moving rectangle window method. Several types of the nonlinear damping models are investigated in simulations. The validity and accuracy of the proposed method are illustrated by the good simulation results, in which the computing accuracy of the nonlinear internal damping is higher than that of the Coulomb damping in kinematical joints.Copyright © 2005 by ASME
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d8dd48c49154e8d777898eea8bd6109 https://doi.org/10.1115/imece2005-80165 Zobrazit plný text záznamu