Modeling and Identi.cation of a Vibration Isolation System with Hysteretic Damping
A model to describe the hysteresis damping character of rubber isolation system is presented. It consists of a parallel spring and damper, whose coefficients change with vibration frequencies. In order to acquire these relations, a force decomposition is carried out according to some sine vibration measurement data about nonlinear forces changing with deformations of the rubber material. The nonlinear force is decomposed into a spring force and a damper force, which are represented by a frequency-dependent spring and damper coefficient, respectively. Then, application of a system identification method will provide the requested functions over frequency. Using those formulae, as an example, the dynamic character of a hollow shaft system supported by rubber rings is analyzed and the acceleration response curve in the centroid position is calculated.
modeling system identi cation data processing hysteretic damping
Dewei Sun Zhigang Chen Faquan Zhou Guangyu Zhang
School of Mechatronics Engineering Harbin Institute of TechnologyHarbin,Heilongjiang Province,150001 School of Mechatronics Engineering Harbin Institute of Technology Harbin,Heilongjiang Province,15000
国际会议
2010 IEEE信息与自动化国际会议(ICIA 2010)
哈尔滨
英文
1-6
2010-06-20（万方平台首次上网日期，不代表论文的发表时间）