球型钢丝绳隔振器非对称迟滞模型  

Asymmetric hysteresis model of spherical wire rope isolator

作　　者：孙自强[1,2] 高留洋 闫明[1,2] 张春辉 SUN Ziqiang;GAO Liuyang;YAN Ming;ZHANG Chunhui(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,Liaoning,China;Liaoning Province Impact Protection and Damage Assessment Technology Engineering Research Center,Shenyang University of Technology,Shenyang 110870,Liaoning,China;Naval Research Academy,Beijing 100071,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]沈阳工业大学辽宁省冲击防护与损伤评估技术工程研究中心,辽宁沈阳110870 [3]海军研究院,北京100071

出　　处：《沈阳工业大学学报》2024年第3期305-311,共7页Journal of Shenyang University of Technology

基　　金：国防科技创新特区项目(20-163-00-TS-006-002-01)。

摘　　要：针对球型钢丝绳隔振器的非线性刚度和阻尼特性导致迟滞模型表征困难的问题,提出了非线性弹性因子和修正因子改进的归一化Bouc-Wen迟滞模型,结合Simulink仿真完善改进的迟滞模型,采用最小二乘法和遗传算法相结合的方法对改进模型进行参数识别。通过数值仿真绘制GGQ25-62L型球型钢丝绳隔振器在不同工况的迟滞环,并和实验数据进行对比。结果表明,参数识别方法准确可靠,实验数据和理论计算曲线具有较强的一致性,该模型能够有效地描述隔振器的动态特性。Aiming at the difficulty of hysteresis model characterization caused by the nonlinear stiffness and damping characteristics of spherical wire rope isolator,a normalized Bouc-Wen hysteresis model with the improved nonlinear elastic and correction factors was proposed.In addition,the as-proposed model was further enhanced in combination with Simulink simulation,and the least square method combined with genetic algorithm was used to identify the parameters.To verify the effectiveness of the as-proposed model,the hysteresis loops of GGQ25-62L spherical wire rope isolator were drawn by numerical simulation under different working conditions and compared with experimental data.The results show that the as-proposed parameter identification method is accurate and reliable,and the experimental data are in good agreement with the theoretical curve.The model can describe the dynamic characteristics of the isolator effectively.

关 键 词：球型钢丝绳隔振器 迟滞环 非线性 弹性因子 修正因子 BOUC-WEN模型 参数识别 

分 类 号：TH113.1[机械工程—机械设计及理论]