基于轮辐式质量弹簧系统的强震转动加速度计的研究  

Study of strong earthquake rotational accelerometer based on a spoke-type mass-string system

作　　者：杨学山[1] 高峰[1] 匙庆磊[1] 佘天莉[1] 杨立志[1] 王南[1] 

机构地区：[1]中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室,黑龙江哈尔滨150080

出　　处：《自然灾害学报》2015年第3期37-45,共9页Journal of Natural Disasters

基　　金：国家高技术研究发展计划(863计划)(2012AA040607);中国地震局工程力学研究所基本科研业务费专项(2013B06)

摘　　要：给出了一种新型的强震转动加速度计的结构原理,导出了转动加速度计的微分方程、频率特性、以及灵敏度计算公式。在国家转台校准装置上对转动加速度计灵敏度、线性度、幅频特性进行了校准,在实验室内对转动加速度计最大量程、一致性以及水平振动对转动加速度计的影响等进行了测试。测试结果表明,强震转动加速度计具有良好的性能,可用于强震转动加速度和建筑结构转动加速度的测量。该转动加速度计已获得国家专利。In this paper we introduced a new-type strong earthquake rotational accelerometer and its structural principles,derived the associated differential equation,frequency characteristics,and the expression for calculating the sensitivity of the rotational accelerometer; calibrated the sensitivity,linearity,and amplitude- frequency characteristics of the accelerometer on the national turntable calibration device; as well as also tested in the laboratory several important technical indicators such as maximum range,consistency and the effects of horizontal vibration on rotational acceleration the accelerometer. Results show that the strong earthquake rotational accelerometer performs very well,and the calculation results agree well with test results. This accelerometer can be used for the measurement of rotational acceleration of strong earthquakes and building structures,and has obtained national patent.

关 键 词：强地震 转动加速度计 轮辐式质量弹簧 电容传感 

分 类 号：TH824.4[机械工程—仪器科学与技术]