摘要
针对重型特种车辆悬置系统低频动态特性不可调问题,提出可控多惯性通道组合挤压模式磁流变液悬置,设计多流道磁流变液阻尼器,以试验方法验证可控流道的切换效果。搭建可控多惯性通道组合挤压模式磁流变液悬置的集总参数模型、1/4重型特种车辆的磁流变液悬置系统模型。最后,根据模型进行动态特性和隔振性能研究。结果表明,对不同惯性通道施加较大的电流,磁流变液悬置的动刚度和滞后角的峰值和峰值频率在0~50 Hz可调;同时,挤压模式作用下悬置在低频具有大刚度和大阻尼特性。
To address the issue of insufficient adjustability of low-frequency dynamic characteristics in heavy-duty special vehicle mount systems,this study proposes a magnetorheological fluid mount with controllable multi-inertial channel combined squeezing mode.A multi-channel magnetorheological fluid damper is developed,and experimental methods are employed to validate the switching effect of controllable flow channels.An aggregate parameter model for the magnetorheological fluid mount with controllable multi-inertial channel combined squeezing mode and a model of magnetorheological fluid mount system for 1/4 heavy-duty special vehicle are established.Finally,dynamic characteristics and vibration isolation performance are investigated based on these models.The results demonstrate that by the application of large current on different inertial channels,the peaks and peak frequencies of dynamic stiffness and hysteresis angle in the magnetorheological fluid mount become adjustable within 0~50 Hz.Additionally,under squeezing mode operation,the mount exhibits high-stiffness and high-damping characteristics at low frequencies.
作者
黄跃东
林智宏
林德昭
HUANG Yuedong;LIN Zhihong;LIN Dezhao(School of Marine Mechatronics,Xiamen Ocean Vocational College,Xiamen,Fujian 361100;Xiamen Key Laboratory of Intelligent Fishery,Xiamen,Fujian 361100;School of Mechanical and Electrical Engineering,Sanming University,Sanming,Fujian 365004;College of Marine Engineering,Jimei University,Xiamen,Fujian 361021)
出处
《液压与气动》
北大核心
2025年第8期35-42,共8页
Chinese Hydraulics & Pneumatics
基金
厦门市智慧渔业重点试验室开放课题(XMKLIF-OP-202403)
国家自然科学基金青年基金(52401379)
“油改电”集装箱正面起重机研发(KH2025016)。
关键词
可控多惯性通道
挤压模式
磁流变液悬置
动态特性
controllable multi-inertia channel
squeezing mode
magnetorheological fluid mount
dynamic characteristics
