摘要
针对现有车用磁流变减振器(MRD)低频时阻尼力很小的问题,设计一种基于剪切模式的旋转式磁流变减振器,使减振器具有磁流变液用量小、低频时也具有大阻尼的性能,不仅能改善车辆的平顺性,也能提高车辆的操纵稳定性。进行了减振器的结构设计,利用ANSYS软件对磁场进行了有限元分析,以多学科优化软件ISIGHT为平台,以初步设计的减振器结构模型为对象,联合CATIA、MATLAB软件,对减振器的结构进行自动优化设计。采用SIMULINK软件对减振器外特性进行了仿真,结果表明,所设计的磁流变减振器在速度接近于零时就可达到很大的阻尼,可为车辆侧倾控制提供足够的阻尼力。
A rotary magnetorheological damper(MRD)based on shear mode is designed aimed at solving the problem of low damping force at low frequency for the existing automotive MR damper. The designed damper has the characteristics of small amount of magnetorheological fluid and large damping at low frequency. It can not only improve the ride comfort, but also can increase the handling stability of the vehicle. After designing the structure of the damper, the finite element analysis of the magnetic field is carried out by ANSYS software. Taking the multidisciplinary optimization software ISIGHT as the optimizing platform and taking the original designed damper structure as the research objective, the structure of the damper is optimized automatically combining with CATIA and MATLAB software. The simulation of the external characteristics of the damper is conducted by using the SIMULINK software. The results show that the designed MR damper can achieve large damping even when the speed is close to zero, which can provide enough damping force for vehicle rolling control.
作者
姚嘉凌
李智宏
唐郑
赖宇阳
YAO Jia-ling;LI Zhi-hong;TANG Zheng;LAI Yu-yang(College of Automobile and Traffic Engineering, Nanjing Forestry University, Jiangsu Nanjing 210037, China;Beijing Soyotec Information Technology Co., Ltd., Beijing 100006, China)
出处
《机械设计与制造》
北大核心
2019年第8期188-191,196,共5页
Machinery Design & Manufacture
基金
江苏省自然科学基金(BK20181403)
江苏省“六大人才高峰”高层次人才选拔培养对象资助项目(2015-JXQC-005)
国家留学基金(201808320051)
关键词
旋转式磁流变减振器
剪切模式
操纵稳定性
自动优化设计
Rotary Magnetorheological Damper
Shear Mode
Handling Stability
Automatic Optimization Design
