考虑车身影响的12自由度悬置系统解耦优化  

Decoupling optimization of a 12-degree-of-freedom mounting system considering the influences of the vehicle body

作　　者：黄跃东 林智宏 郑飞杰[3] HUANG Yuedong;LIN Zhihong;ZHENG Feijie(School of Marine Mechanical and Electrical Engineering,Xiamen Ocean Vocational College,Xiamen 361100,China;Xiamen Key Laboratory of Intelligent Fishery,Xiamen 361100,China;School of Mechanical and Electrical Engineering,Sanming University,Sanming 365004,China)

机构地区：[1]厦门海洋职业技术学院海洋机电学院,福建厦门361100 [2]厦门市智慧渔业重点实验室,福建厦门361100 [3]三明学院机电工程学院,福建三明365004

出　　处：《邵阳学院学报(自然科学版)》2025年第1期69-78,共10页Journal of Shaoyang University:Natural Science Edition

基　　金：厦门市智慧渔业重点实验室开放课题(XMKLIF-OP-202403);福建省自然科学基金项目(2024J01317);三明学院引进高层次人才科研启动经费资助项目(23YG01);三明市引导性科技项目(2023-G-1)。

摘　　要：为提高多自由度悬置系统隔振性能,提出考虑车身位移响应的12自由度悬置系统解耦。推导12自由度悬置系统数学方程,分析车身弹性问题对悬置系统解耦率敏感特性和固有频率的影响;以12自由度悬置系统前6阶解耦率最大,车身位移响应最小为目标函数,以悬置刚度和安装位置作为设计变量进行多目标优化。研究结果表明,12自由度悬置系统前6阶的解耦率得到提升,提高了悬置系统的隔振性能。In order to improve the vibration isolation performance of the multi-degree-of-freedom mou-nting system,the decoupling of the 12-degree-of-freedom mounting system was proposed,which considered the displacement response of the vehicle body.The mathematical equations of the 12-degree-of-freedom mounting system were deduced to analyze the impacts of the vehicle body elasticity on the decoupling rate sensitivity and the intrinsic frequency of the mounting system.With the objective function of maximizing the decoupling rate in the first six orders of the 12-degree-of-freedom mounting system and minimizing the displacement response of the vehicle body,multi-objective optimization was carried out by taking the mount stiffness and the mounting position as the design variables.The results showed that the decoupling rate of the 12-degree-of-freedom mounting system in the first six orders improved,which,in turn,enhanced the overall vibration isolation performance of the mounting system.

关 键 词：悬置系统 6自由度 12自由度 多目标优化 

分 类 号：TB535[理学—物理]