四铅芯橡胶支座显式有限元分析及试验研究

The Explicit Finite Element Analysis & Experimental Study of Four-lead Rubber Bearing

采用显式有限元分析软件ANSYS/LS-DYNA分析四铅芯橡胶支座(GZY700A、GZY800A)的非线性动态特性,建立四铅芯橡胶支座的FEA(有限元)模型,针对支座中心加竖向荷载和水平向循环往复位移荷载进行数值模拟分析。同时,对4个四铅芯橡胶支座试件进行非线性力学性能试验,并与有限元数值模拟结果、理论计算结果进行对比分析。研究表明:有限元数值模拟结果与试验曲线吻合得较好。因此,采用显式有限元分析橡胶支座可以为确定多铅芯橡胶支座的动力分析提供计算方法。

Based on the study,using explicit finite element software ANSYS/LS-DYNA to analyse the nonlinear dynamic characteristics of four-lead rubber bearings is presented.After creating FEA model of four-lead rubber bearing,numerical simu-lating analysis in a horizontal cyclic displacement under a compressive axial load and nonlinear mechanical property tests on four-lead rubber bearings were conducted.The simulated analytical results are compared with experimental results and theoretical calculation consequence and small difference is found.Thus,the proposed method can supply calculating method for the dynamic analysis for multi-lead rubber bearing.