金属橡胶/碟簧叠层复合结构阻尼特性及其非对称迟滞模型参数识别

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摘要针对碟簧(disc springs ，DS)、橡胶–碟簧等结构的阻尼性能差以及抗高温等恶劣环境能力弱，采用正弦力激励法对添加弹性阻尼金属橡胶(entangled metallic wire material，EMWM)后的叠层复合结构进行试验研究。以耗能量、损耗因子和动态平均刚度为评价指标，分析了不同激励条件和不同金属橡胶密度对金属橡胶/碟簧叠层复合结构阻尼性能的影响。基于迹法等效阻尼模型，考虑弹性恢复力和阻尼力随变形幅值、频率的变化规律，用参数分解识别法建立该复合结构在一定载荷下的非对称迟滞模型。结果表明，预测的滞回曲线与实测曲线吻合度高，参数识别精度能够满足工程应用的要求。
关键词：金属橡胶(EMWM)；碟簧(DS)；叠层复合结构；动态阻尼；非对称迟滞模型；参数识别

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	乙万
	程湖
	白鸿柏
	訾宝
	汤宇

关键词 ：金属橡胶(EMWM), 碟簧(DS), 叠层复合结构, 动态阻尼, 非对称迟滞模型, 参数识别

Abstract：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, the laminated composite dampers with elastic damping entangled metallic wire materials (EMWMs) were studied by 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. The results show that the theoretical loop is consistent with the measured curve, and the parameter identification accuracy can meet engineering application requirements.
Key words: entangled metallic wire material (EMWM); disc spring(DS); laminated composite structure; dynamic damping; asymmetric hysteresis model; parameter identification

Key words： entangled metallic wire material (EMWM) disc spring(DS) laminated composite structure dynamic damping asymmetric hysteresis model parameter identification

收稿日期: 2021-09-01 出版日期: 2022-10-28

引用本文:

乙万，程湖，白鸿柏，訾宝，汤宇. 金属橡胶/碟簧叠层复合结构阻尼特性及其非对称迟滞模型参数识别[J]. 振动与冲击, 2022, 41(20): 270-276.
WU Yiwan, CHENG Hu, BAI Hongbai, ZI Bao, TANG Yu. Damping characteristics and parameter identification of an asymmetric hysteresis model of entangled metallic wire materials/disc springs laminated composite dampers. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(20): 270-276.

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http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2022/V41/I20/270

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