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首页> 外文期刊>Smart Materials & Structures >Real-time hybrid simulation of a complex bridge model with MR dampers using the convolution integral method
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Real-time hybrid simulation of a complex bridge model with MR dampers using the convolution integral method

机译：卷积积分法对带有MR阻尼器的复杂桥梁模型进行实时混合仿真

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摘要

Magneto-rheological (MR) fluid dampers can be used to reduce the traffic induced vibration in highway bridges and protect critical structural components from fatigue. Experimental verification is needed to verify the applicability of the MR dampers for this purpose. Real-time hybrid simulation (RTHS), where the MR dampers are physically tested and dynamically linked to a numerical model of the highway bridge and truck traffic, provides an efficient and effective means to experimentally examine the efficacy of MR dampers for fatigue protection of highway bridges. In this paper a complex highway bridge model with 263 178 degrees-of-freedom under truck loading is tested using the proposed convolution integral (CI) method of RTHS for a semiactive structural control strategy employing two large-scale 200 kN MR dampers. The formation of RTHS using the CI method is first presented, followed by details of the various components in the RTHS and a description of the implementation of the CI method for this particular test. The experimental results confirm the practicability of the CI method for conducting RTHS of complex systems.
机译：磁流变（MR）流体阻尼器可用于减少公路桥梁中交通诱导的振动，并保护关键的结构部件免于疲劳。为此，需要进行实验验证以验证MR阻尼器的适用性。实时混合仿真（RTHS）通过对MR阻尼器进行物理测试并动态链接到公路桥梁和卡车交通的数值模型，提供了一种有效且有效的手段，可以通过实验检验MR阻尼器对高速公路疲劳保护的功效桥梁。在本文中，使用拟议的RTHS卷积积分（CI）方法，针对采用两个大型200 kN MR阻尼器的半主动结构控制策略，测试了卡车荷载下具有263 178自由度的复杂公路桥梁模型。首先介绍了使用CI方法形成RTHS的方法，然后详细介绍了RTHS中各个组件的细节以及对该特定测试的CI方法实施的说明。实验结果证实了CI方法进行复杂系统RTHS的实用性。

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