摘要
以提高输出阻尼力和减少响应时间为目标,对磁流变阻尼器进行励磁线圈缠绕方法和磁场融合匹配分析,提出了基于反向串联线圈缠绕和活塞-永磁复合体的结构优化方法,并设计了一种磁流变阻尼器件。在DS-100型动静试验平台上进行不同激振频率、激振振幅和控制电流下的综合性能测试。研究表明,优化后磁流变阻尼器的输出阻尼力可提高65%,响应时间最大可减少50%。研究结果为进一步改进磁流变阻尼器性能提供了参考依据。
To improve damping force and reduce response time of magnetorheological （MR） damper, an optimal structure designing method was presented. The structure optimal methods, including reverse series of excitation coils and composed permanent magnets piston structure, was based on the calculation of resultant magnetic field for different excitation coil winding approachs. According to the provided structure optimal method, a MR damper was manufactured and its mechanical performances were tested on type DS- 100 fatigue-testing machine with different forcing vibration frequency, vibration amplitude and control current. The experiments showed that the damping force of the proposed MR increased by 65% , and the response time reduces to more than a half at the most. This result provided an important reference to further mechanical property improvement of MR damper.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2012年第12期33-38,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(61071198)
浙江省自然科学基金资助项目(Y1101283
LY12F03009)
关键词
磁流变阻尼器
结构优化
性能试验
Magnetorheological damper, Structure optimization, Performance test
作者简介
冯志敏，教授，主要从事状态监测和过程控制研究，E-mail：fengzhimin@nbu．edu．cn
