基于LS-DYNA与耦合方法的简支板桥车桥振动研究

Simple Supported Slab Axle Based on LS-DYNA and Coupling Method Vibration Research

简支板桥作为桥梁的基本类型之一近年来得到了很好的发展。为了更好地维护简支板桥在运营期间的安全性,需要详细的了解简支板桥车桥振动的特点。选取了一个简支板桥作为研究对象,结合LS-DYNA与车桥的耦合方法分析了简支板桥车桥的振动特点。通过试验与实际的传感器数据对比可以得出:基于实际的传感器结果和LS-DYNA模拟分析,对比发现车辆在实际与模拟的过程中对于简支板桥的跨中最大位移基本一致。验证了LS-DYNA与耦合方法对于研究简支板桥车桥振动的可行性。

One of the basic types of bridges as simple bridges has been well developed in recent years. In order to better maintain the safety of the simple slab bridge during operation,it is necessary to understand in detail the characteristics of the simple slab axle vibration. In this paper,a simple slab bridge is selected as the research object. Combined with the coupling method of LS-DYNA and axle,the vibration characteristics of the simply supported slab axle are analyzed. Through the comparison between the experimental and actual sensor data,it can be concluded that based on the actual sensor results and the LS-DYNA simulation analysis,it is found that the maximum displacement of the span of the simply supported slab bridge is basically the same in the actual and simulated process. The feasibility of LS-DYNA and coupling method for studying the vibration of simply supported bridge axle is verified.