ABSTRACT

The hysteretic behavior of high-damping rubber bearings under different non-proportional plane loading paths is experimentally examined. Compared with unilateral reversal loading test results, non-proportional plane loading will make the rubber of high-damping rubber bearings have additional regional shear strain, thus leading to quite different mechanical properties and hysteretic behavior. A previously developed mathematical model is further modified for appropriately characterizing the unilateral and bilateral behavior of high-damping rubber bearings. The applicability and generalization of the further modified model are examined and demonstrated by comparing its predictions using a unique set and different sets of identified coefficients with the test results.

摘要

实验研究了不同非比例平面加载路径下高阻尼橡胶轴承的滞后行为。与单边反向加载试验结果相比，非比例平面加载会使高阻尼橡胶支座的橡胶产生额外的区域剪切应变，从而导致力学性能和滞后行为大相径庭。进一步修改了先前开发的数学模型，以适当地表征高阻尼橡胶轴承的单侧和双边行为。进一步修改模型的适用性和泛化性通过将其预测与测试结果进行比较来检查和证明。