Damping characteristics and parameter identification of an asymmetric hysteresis model of entangled metallic wire materials/disc springs laminated composite dampers

被引：0
|
作者：
Wu Y. [1 ]
Cheng H. [1 ]
Bai H. [1 ]
Zi B. [1 ]
Tang Y. [1 ]
机构：
[1] Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 20期
关键词：
asymmetric hysteresis model; disc spring (DS); dynamic damping; entangled metallic wire material (EM WM); laminated composite structure; parameter identification;
D O I：
10.13465/j.cnki.jvs.2022.20.033
中图分类号：
学科分类号：
摘要：
In view of the low damping performance of disc springs (DS), natural rubber-disc springs, and their weak ability to resist high temperature and other harsh environments, laminated composite dampers with elastic damping entangled metallic wire materials (EMWMs) were studied by the sinusoidal force excitation method. The effects of different excitation conditions and different EMWMs densities on the damping performance of entangled metallic wire materials/disc springs laminated composite dampers (EMWM/DS) were analyzed by taking energy dissipation factor, loss factor and dynamic average stiffness as evaluation indexes. Based on the equivalent damping model of the trace method, considering the variation of elastic restoring force and damping force with the amplitude and frequency of deformation, the asymmetric hysteresis model of the EMWM/DS under specific load was established by the identification method of parameter decomposition. Results show that the theoretical loop is consistent with the measured curve, and the parameter identification accuracy can meet engineering application requirements. © 2022 Chinese Vibration Engineering Society. All rights reserved.
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页码：270 / 276and314
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