六自由度主被动一体隔振平台的动力学实验建模  

Experimental dynamic modeling of 6-DOF active-passive vibration isolation platform

作　　者：郝慧荣[1] 白鸿柏[1] 张慧杰[2] 李冬伟[1] 刘树峰[1] 

机构地区：[1]军械工程学院,石家庄050003 [2]内蒙古工业大学,呼和浩特010051

出　　处：《振动与冲击》2011年第11期4-7,35,共5页Journal of Vibration and Shock

基　　金：武器装备十一五预先研究资助项目(51312040405);军械工程学院原始创新基金资助科研项目(YSCX0904)

摘　　要：实验建模是摸清物理现象本质的一种有效手段,而针对六自由度主被动一体隔振平台,它的实验建模是实现隔振的主动控制的前提,也是能否达到满意控制效果的关键。通过对物理空间到传感器坐标空间变换的推导,给出了传感器在布置上应该满足的条件。结合六自由度主被动一体隔振平台的先验理论知识,从测试所得信号出发,利用最小二乘估计的递推算法建立起了作动器到传感器的动力学模型,为隔振平台的振动主动控制打下了基础。Experiment modeling is an effective means to find out the essence of physical phenomenon.For a 6-DOF active-passive vibration isolation platform,experiment modeling is the premise to make vibration isolation possible to be active-controlled and also the key to gain satisfying control result.Conditions of sensors＇ arrangement were presented by deriving the coordinate transform from physical space to sensor space.Combining with the transcendental theoretical knowledge regarding 6-DOF active-passive vibration isolation of platform and the signal obtained from tests,the dynamic model of actuator-sensor system was built up by using least square estimation recurrence algorithm.

关 键 词：六自由度 隔振 实验建模 

分 类 号：TH113[机械工程—机械设计及理论]