中文摘要：

基于线控转向系统的要求,设计了一种利用转子周面和端面混合工作模式的磁流变力反馈装置。提出了昆合工作模式力矩模型及其磁路与结构设计方法,并运用有限元分析方法验证了理论设计方法的有效性。通过与周、端面单一模式对比分析表明,在产生相同力矩的情况下,混合模式可使结构更为紧凑;而为获得尽可能大的力矩,端面积与周面积比的合理范围在2~8之间。在特定条件下对装置进行优化的结果表明,混合模式力反馈装置能在质量较小的情况下,实现同等力矩要求的线控转向路感电机执行器的功能。

英文摘要：

Based on the requirements of steering-by-wire（SBW）system,a magneto-rheological（MR）fluid-based force feedback device with a hybrid mode utilizing the magnetic flux of both circumferential and end surfaces of motor rotor is designed.The torque model for hybrid mode and the design method of magnetic circuit and structure are proposed with their effectiveness verified by finite element analysis.Comparative analysis between single modes and hybrid mode demonstrates that under the condition of the same torque produced the device with hybrid mode has a more compact structure,and for obtaining a torque as large as possible,the reasonable ratio of the end surface area over the circumferential surface area is in a range of 2 to 8.The results of an optimization for the device in a specific condition indicate that the force feedback device with hybrid mode can realize the function of motor actuator for the road feel of SBW,meeting the same torque requirement with a much less mass.