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Viscous damper mechanical property coefficient and slip identification method
The invention provides a viscous damper mechanical property coefficient and slip identification method. The method comprises the following steps that firstly, a viscous damper test hysteretic curve is dispersed into single hysteretic loops, and the single hysteretic loops are connected end to end so that the single hysteretic loops can be closed to obtain single closed hysteretic loops; a rough calculation result of unloading rigidity/loading rigidity is obtained through a single closed hysteretic loop unloading section, and the value range of the unloading rigidity/loading rigidity is determined; then accurate damping coefficient and damping index value range are calculated; then the value range of the viscous damper is determined; a target function based on the energy dissipation capacity of the viscous damper is input, and parameter identification based on an NM simplex method is carried out; and a restoring force model, with initial slip, of the viscous damper is obtained; According to the viscous damper mechanical property coefficient and slip identification method, errors due to a testing machine are considered, and meanwhile, the more reasonable and reliable method is provided for mechanical property parameter and slip identification of the viscous damper, so that the method can be applied to parameter analysis and nonlinear analysis of the viscous damper.
本发明提供一种粘滞阻尼器力学性能系数及滑移识别方法，包括以下步骤：首先将粘滞阻尼器试验滞回曲线离散为单个滞回环并连接首尾使其闭环得到单个闭合滞回环；由单个闭合滞回环卸载段得到卸载刚度/加载刚度的粗略计算结果，并确定卸载刚度/加载刚度的取值范围；再计算精确阻尼系数和阻尼指数取值范围；再确定粘滞阻尼器的取值范围；输入基于粘滞阻尼器耗能能力的目标函数，并进行基于NM单纯形法的参数识别；得到粘滞阻尼器具有初始滑移的恢复力模型；本发明考虑了由于试验机造成的误差同时为粘滞阻尼器力学性能参数及滑移识别提供了一种更加合理可靠方法，使其能够应用于粘滞阻尼器的参数分析和非线性分析。
Viscous damper mechanical property coefficient and slip identification method
The invention provides a viscous damper mechanical property coefficient and slip identification method. The method comprises the following steps that firstly, a viscous damper test hysteretic curve is dispersed into single hysteretic loops, and the single hysteretic loops are connected end to end so that the single hysteretic loops can be closed to obtain single closed hysteretic loops; a rough calculation result of unloading rigidity/loading rigidity is obtained through a single closed hysteretic loop unloading section, and the value range of the unloading rigidity/loading rigidity is determined; then accurate damping coefficient and damping index value range are calculated; then the value range of the viscous damper is determined; a target function based on the energy dissipation capacity of the viscous damper is input, and parameter identification based on an NM simplex method is carried out; and a restoring force model, with initial slip, of the viscous damper is obtained; According to the viscous damper mechanical property coefficient and slip identification method, errors due to a testing machine are considered, and meanwhile, the more reasonable and reliable method is provided for mechanical property parameter and slip identification of the viscous damper, so that the method can be applied to parameter analysis and nonlinear analysis of the viscous damper.
本发明提供一种粘滞阻尼器力学性能系数及滑移识别方法，包括以下步骤：首先将粘滞阻尼器试验滞回曲线离散为单个滞回环并连接首尾使其闭环得到单个闭合滞回环；由单个闭合滞回环卸载段得到卸载刚度/加载刚度的粗略计算结果，并确定卸载刚度/加载刚度的取值范围；再计算精确阻尼系数和阻尼指数取值范围；再确定粘滞阻尼器的取值范围；输入基于粘滞阻尼器耗能能力的目标函数，并进行基于NM单纯形法的参数识别；得到粘滞阻尼器具有初始滑移的恢复力模型；本发明考虑了由于试验机造成的误差同时为粘滞阻尼器力学性能参数及滑移识别提供了一种更加合理可靠方法，使其能够应用于粘滞阻尼器的参数分析和非线性分析。
Viscous damper mechanical property coefficient and slip identification method
一种粘滞阻尼器力学性能系数及滑移识别方法
LI ZHAOZHONG (Autor:in) / JIN HUI (Autor:in) / TAO LEI (Autor:in) / GONG LIANG (Autor:in) / FENG YAN (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
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