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磁流变惯容器设计与性能分析OA北大核心CSTPCD

Design and characteristics analysis of magnetorheological inertial device

中文摘要英文摘要

为了提高传统磁流变阻尼器在低频域的减振性能,提出了一种新型磁流变惯容器,包括变阻尼单元和惯容单元两部分,由磁流变阀、液压马达与飞轮等组成.利用活塞杆与缸筒的相对运动,实现变阻尼单元内的磁流变液在磁流变阀内往复流动,通过调控线圈上电流大小改变输出阻尼的大小;同时,实现油液推动液压马达输出轴及飞轮转动,输出器件的惯容特性.为提高磁流变阀内置通道的磁场利用率,提出了磁路设计优化方法,采用有限元方法对磁流变阀内部磁场强度进行仿真.结合磁场仿真与理论分析,设计并试制了样机,搭建了器件性能平台进行测试.结果表明,所设计器件能够表现出惯容特性,具有良好的阻尼可控性.

To enhance the vibration damping performance of traditional magnetorheological dampers in the low-frequency domain,a novel magnetorheological inertial device is proposed. It consists of a variable damping unit and an inertance unit,incorporating a magnetorheological (MR) valve,hydraulic motor,and flywheel. The relative movement between the piston rod and cylinder facilitates the reciprocating flow of the MRF within the variable damping valve. The output damping is adjusted by controlling the current magnitude on the coil. Simultaneously,the oil drives the hydraulic motor output shaft and the rotation of the flywheel,realizing the inertance characteristics of the device. To maximize the magnetic field utilization within the built-in channel of the MR valve,an optimized magnetic circuit design approach is proposed. Finite element analysis is utilized to simulate and analyze the internal magnetic field intensity of the MR valve. Combining magnetic field simulation with theoretical calculations,a prototype is designed and fabricated. A performance testing platform for the device is established and tested. The results indicate that the designed device exhibits inertance characteristics and has excellent controllability of damping.

于建强;尹佳威;张赓;苏喜;吴晅;陈世嵬

中国电子科技南湖研究院机器人实验室,浙江嘉兴 314000中国电子科技南湖研究院机器人实验室,浙江嘉兴 314000||重庆科技大学土木与水利工程学院,重庆 401331嘉兴南湖学院新材料工程学院,浙江嘉兴 314001

机械工程

磁流变变阻尼器件惯容磁场

magnetorheological(MR)variable dampingdeviceinertermagnetic field

《重庆大学学报》 2024 (008)

39-46 / 8

国家重点研发计划项目(2023YFE0207000);嘉兴市科技计划项目(2023AY11024);国家自然科学基金项目(U22B2040);重庆市自然科学基金面上项目(CSTB2023NSCQ-MSX0029).Supported by the National Key Research and Development Program of China(2023YFE0207000),the Science and Technology Plan Project of Jiaxing(2023AY11024),National Natural Science Foundation of China(U22B2040),and the Natural Science Foundation of Chongqing(CSTB2023NSCQ-MSX0029).

10.11835/j.issn.1000.582X.2024.08.004

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