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Equivalent force control method for generalized real-time substructure testing with implicit integration

机译:含隐式积分的广义实时子结构测试的等效力控制方法

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摘要

This paper presents a new method, called the equivalent force control method, for solving the nonlinear equations of motion in a real-time substructure test using an implicit time integration algorithm. The method replaces the numerical iteration in implicit integration with a force-feedback control loop, while displacement control is retained to control the motion of an actuator. The method is formulated in such a way that it represents a unified approach that also encompasses the effective force test method. The accuracy and effectiveness of the method have been demonstrated with numerical simulations of real-time substructure tests with physical substructures represented by spring and damper elements, respectively. The method has also been validated with actual tests in which a Magnetorheological damper was used as the physical substructure.
机译:本文提出了一种新的方法,称为等效力控制方法,用于使用隐式时间积分算法在实时子结构测试中求解非线性运动方程。该方法用力反馈控制环替代了隐式积分中的数值迭代,同时保留了位移控制以控制执行器的运动。该方法的制定方式使其代表了一种统一的方法,其中也包括有效的力测试方法。实时子结构测试的数值模拟已经证明了该方法的准确性和有效性,实时子结构测试分别以弹簧和阻尼器元件为代表。该方法也已通过实际测试验证,其中磁流变阻尼器用作物理子结构。

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