航空遥感惯性稳定平台振动特性分析与隔振系统设计  

Vibration analysis and damping system design on an inertially stabilized platform for aerial remote sensing application

作　　者：周向阳[1] 刘炜[1] 

机构地区：[1]北京航空航天大学惯性技术重点实验室,新型惯性仪表与导航系统技术国防重点学科实验室,北京100191

出　　处：《中国惯性技术学报》2012年第3期266-272,共7页Journal of Chinese Inertial Technology

基　　金：国家"973"计划项目(2009CB724001);国家"863"计划项目(2008AA121302);国家自然科学基金重点项目(60736025)

摘　　要：针对航空遥感三轴惯性稳定平台隔离高频线振动的要求,在振动环境分析的基础上,以振动传递率为评价指标,对周期性干扰下惯性稳定平台的一次和二次隔振系统动力学模型进行了Matlab仿真及振动特性分析,进而对某轻小型惯性稳定平台的隔振系统进行了设计,最后为验证隔振系统效果,对惯性稳定平台进行了振动测试实验。实验结果表明：惯性稳定平台在受到30~500 Hz的外界干扰时能够平稳工作,且指向精度保持在0.2°以内,表明隔振系统设计合理有效。In order to isolate the high-frequency linear vibration for the aerial remote sensing system,the damping system for a three-axis inertially stabilized platform（ISP） is designed.Based on the analysis of the vibration environment,the 1-and 2-degree-of-freedom damping system dynamic models of inertially stabilized platform with periodic disturbances were simulated by Matlab software,and the vibration characteristics were analyzed.Then the damping system for a light-weight ISP was designed,and the vibration experiments were carried out.The results show that the inertially stabilized platform can perform stably under the 30~500 Hz high-frequency disturbances,and the residual deviation is less than 0.2°,which indicates that the damping system is feasible and effective.

关 键 词：航空遥感 惯性稳定平台 振动传递率 隔振 

分 类 号：U666.1[交通运输工程—船舶及航道工程]