Micro-vibration response analysis and its application of electronic workshop raw land based on whale optimization algorithm  

基于鲸鱼群优化算法的电子厂房素地微振动响应分析及应用研究

作　　者：YU Caizhi LU Yutai WANG Peng SUN Changku 余才志;卢煜泰;王鹏;孙长库(天津大学精密测量技术与仪器国家重点实验室,天津300072)

机构地区：[1]State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China

出　　处：《Journal of Measurement Science and Instrumentation》2022年第4期390-397,共8页测试科学与仪器（英文版）

摘　　要：Environmental micro-vibration is one of the key factors impacting the running of electronic workshop.Low frequency micro-vibration has a significant influence on the normal operation of high precision machining and testing equipment,and even causes irreversible damage to the equipment.Micro-vibration testing and response analysis are important to guide the vibration isolation design and ensure the stable operation of various precision equipment in the workshop.Parameters of Davidenkov model are fitted based on whale swarm optimization algorithm,and its applicability is verified.At the same time,taking the testing project of an electronic workshop raw land as an example,the micro-vibration response is analyzed.The results show that the nonlinear constitutive model constructed by whale optimization algorithm can simulate the dynamic nonlinear behavior of soil under the action of micro-vibration better.Compared with the traditional equivalent linearization method,the nonlinear constitutive model based on the whale optimization algorithm has a smaller acceleration response value.It can effectively suppress the“virtual resonance effect”produced by the equivalent linearization method.

关 键 词：micro-vibration response nonlinear dynamic constitutive model whale optimization algorithm electronic workshop raw land 

分 类 号：O32[理学—一般力学与力学基础] TP18[理学—力学]