重庆大学学报2018，Vol.41Issue(4)：1-10,10.DOI:10.11835/j.issn.1000-582X.2018.04.001
新型准零刚度振动位移传感系统研究
Research on a novel quasi-zero-stiffness sensor system for vibration measurement
摘要
Abstract
In order to solve the problem that the absolute vibration displacement is difficult to directly measure in many engineering practices,a novel quasi-zero-stiffness-based sensor system is proposed.Firstly,the static characteristics of the Euler beam and the sensor system are analyzed and the condition of the quasi-zero-stiffness characteristic of the sensor system at equilibrium position is obtained.Secondly,the dynamic model of sensor system is established and solved,and then the effects of equivalent damping,stiffness ratio of compressed Euler beam and spring,the amplitude of measured signal on the measurement accuracy are discussed.Thirdly,the time-domain responses under different excitation signals are studied.The results show that the sensor system can be used to measure the absolute micro-vibration displacement directly,accurately and real-timely.The novel quasi-zero-stiffness sensor system should be a feasible or better measurement scheme for various vibration control with full system states feedback.关键词
振动测量/准零刚度/绝对位移/动力学/微幅振动Key words
vibration measurement/quasi-zero-stiffness/absolute displacement/dynamics/micro-vibration分类
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黄伟,邓兆祥,妥吉英,张河山,杨攀,杨金歌..新型准零刚度振动位移传感系统研究[J].重庆大学学报,2018,41(4):1-10,10.基金项目
国家高技术研究发展计划(“863”计划)项目(2012AA111803).Supported by the National High Technology Research and Development Program of China (863 Program)(2012AA111803). （“863”计划）
