金属丝网减振器数学建模与响应计算  

Mathematical Model and Response Calculation of Metal-net Damper

作　　者：朱芹[1] 樊文欣[1] 张保成[1] 任杰锶 桑满仙 ZHU Qin;FAN Wenxin;ZHANG Baocheng;REN Jiesi;SANG Manxian(School of Mechanical and Power Engineering, North University of China, Taiyuan 030051,P.R.China)

机构地区：[1]中北大学机械与动力工程学院,太原030051

出　　处：《科学技术与工程》2017年第36期43-48,共6页Science Technology and Engineering

基　　金：国家自然科学基金(51275487);山西省自然科学基金(2012011023-2);山西省高校高新技术产业化项目(20120021)资助

摘　　要：用金属丝网减振器非线性滞回特性,将滞迟恢复力进行分解,并由此建立随振动幅值和频率变化而变化的非线性数学模型。通过正弦加载试验获得各工况下的数据样本,对模型参数进行辨识,并验证其合理性。由耗能等效原则,对金属丝网减振器响应进行近似解析求解,检查其精度。为金属丝网减振器建立满足工程需求和反映实际工况的数学模型和响应计算提供了可行方案。Using the nonlinear hysteretic characteristics of metal-net damper,the hysteretic restoring force was decomposed,the changing over vibration amplitude and frequency of nonlinear mathematical model was established.By sinusoidal loading test data under various operating conditions to obtain samples,the model parameters were identified,and their rationality was verified.By means of the equivalent principle of energy dissipation,the response of the metal-net damper was solved by approximate resolution,and the accuracy was checked.It provides a feasible solution on the mathematical model and response calculation,which could meet the engineering requirements and reflect the actual condition.

关 键 词：金属丝网减振器 数学模型 参数辨识 响应计算 

分 类 号：TB302[一般工业技术—材料科学与工程]