摘要
针对颗粒阻尼器在理论研究方面的不足,以一种阻塞型活塞式颗粒阻尼器为研究对象,基于接触面干摩擦理论建立该新型颗粒阻尼器的非线性迟滞力学模型,设计颗粒阻尼器动态实验,采集数据后运用遗传算法对颗粒阻尼器力学模型进行参数识别及模型验证。结果表明,建立的颗粒阻尼器力学模型能够反映在不同频率、不同位移幅值的简谐振动环境中阻塞型活塞式颗粒阻尼器的力学特性。
In view of the deficiency of theoretical research on particle damper,a new type of blocking piston particle dampers was taken as the research object,and a nonlinear hysteretic mechanical model of the new type of particle damper was established based on the dry friction theory of contact surface.The dynamic experiment of the particle damper was designed.After collecting data,the parameters of the mechanical model of particle damper were identified and verified by genetic algorithm.The results show that the mechanical model of the damper can reflect the mechanical characteristics of blocking piston particle damper in the harmonic vibration environment with different frequencies and displacement amplitudes.
作者
汪源成
杨啟梁
胡溧
WANG Yuancheng;YANG Qiliang;HU Li(School of Automobile and Traffic Engineering, Wuhan University of Science and Technology, Wuhan 430065, China)
出处
《中国科技论文》
CAS
北大核心
2020年第8期948-952,共5页
China Sciencepaper
基金
国家自然科学基金资助项目(51105283)。
关键词
颗粒阻尼器
接触面干摩擦
非线性迟滞系统
参数识别
particle damper
dry friction of contact surface
nonlinear hysteresis system
parameter identification
