车载磁流变隔振平台设计及参数优化

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中图分类号：TH122 文献标志码：A文章编号:1006-0316(2025)11-0010-07

doi : 10.3969/j.issn.1006-0316.2025.11.002

Design and Parameter Optimization of Vehicle-Mounted Magnetorheological Vibration Isolation Platform

FANG Hao，WANG Shuaijun， ZHAO Yi， WEI Guo，LAI Houchuan， ZOU Jiazhuang(NORLA Institute of Technical Physics, Chengdu 610041, China）

Abstract : A certain vehicle-borne optical system is weak in the performance of both vibration resistance and impact resistance. Its beam control and high-precision acquisition and tracking is prone to the impact and vibration of the vehicle, which makes it diffcult to meet the expected accuracy requirements, causing problems suchas"invisibility"，"instability",and"misalignment"intheopticalsystem.Therefore,a three-degree-of-freedom magnetorheological vibration isolation platform is designed regarding the vibration characteristics of the vehicle platform. Based on the theoretical analysis of vibration control, the dynamic simulation platformand the orthogonal test method,the stifess parameters of the elastic element and the damping parameters of the damping element are studied, with the root mean square value of the three-degree-of-freedom response acceleration as the index. The primary and secondary order of the parameters affecting the vibration isolation and buffering performance is analyzed and determined. The optimal parameter combination is obtained,and then the performance optimization ofthe three-degree-of-freedom magnetorheological vibration isolation device is completed. The final results show that the magnetorheological vibration isolation device has good performance. It can improve the dynamic beam control and high-precision acquisition and

trackingability oftheoptical system.

Key words ∵ vibration isolation platform ; magnetorheology ; dynamic analysis ; orthogonal test ; parameter optimization

激光系统的潜在效能和应用前景已引起了国内外的广泛重视[1-2]，其中光学负载作为光学系统的主要任务设备，其减振系统性能对光学系统跟瞄打击的稳定精度具有至关重要的作用，现有光学系统一般采用被动减振方式，无法适应其高精度稳瞄要求，因此有必要开展新型减振结构的设计及其分析优化。（剩余8945字）