电动振动台模型辨识方法及其应用的研究  

Model identification method for a electrodynamic vibration shaker and its application

作　　者：郭继峰[1,2] 任万滨[1] 康云志[1] 翟国富[1] 

机构地区：[1]哈尔滨工业大学军用电器研究所,哈尔滨150001 [2]东北林业大学,哈尔滨150040

出　　处：《振动与冲击》2011年第7期241-244,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(50777010);哈尔滨市科技创新人才研究专项资金项目(2008RFQXG043);哈尔滨工业大学优秀青年教师培养计划资助HITQNJS.2009.024

摘　　要：电动振动台是振动与冲击环境试验的主设备,对其模型的辨识与估计是开展振动控制技术研究和振动试验仿真的必要环节。基于电动振动台的动力学和电学耦合模型,提出了一种以冲击信号作为激励的振动台模型传递函数进行系统辨识与参数估计的方法。并应用其模型参数完成了冲击波形的生成。仿真结果与试验结果一致性很好,表明所提出的模型辨识方法有效可行,对电动振动台试验波形的生成具有一定的实用价值。An electrodynamic vibration shaker is the key equipment for vibration and shock environmental test and its model identification and estimation are necessary procedures for conducting study on vibration control technology and test simulation technology.Based on a dynamic-electrical couplied model of the electrodynamic vibration shaker,a system identification and parameter estimation method taking shock signals as excitations was proposed.The regulated shock waveform was formed by using model parameters calculated accurately.The results verified the validity and feasibility of the proposed model identification method by comparing simulation results with test ones.

关 键 词：电动振动台 系统辨识 传递函数 冲击 随机信号 

分 类 号：TB123[理学—工程力学]