客车车架焊接接头质量有限元模拟

D. Satrijo, O. Kurdi, I. Haryanto, I. Yulianti, Y. A. Wijaya, Maharsi Anung Kesawasidhi
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引用次数: 0

摘要

大客车车架的许多部件是用接头焊接连接起来的。这些焊接接头必须足够坚固,以确保在事故中公共汽车倾覆时乘客的安全。为了保证这种焊接接头的强度,有必要对接头进行试验。测试可以直接在连接上进行实验,也可以使用商业软件进行模拟。所进行的测试必须参照国际社会认可的标准。本文将根据UN-ECE R66标准,采用有限元法对焊接接头的强度进行模拟测试。对客车车架进行的试验位于3个点,即:车架、墙架和客车车顶车架。在实验中,对物体施加某一轴方向的力,持续一段时间,直到物体或物体变形,直至发生断裂。在应力点处得到的最大应力值作为母线滚动试验运行可行性的数据。采用有限元法进行了实验和模拟试验。试验和模拟结果均表明,焊接接头未发生断裂。这意味着在事故中,当客车倾覆时,焊接接头的强度是足够的
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Welding Joint Quality Simulation of Bus Frame Using Finite Element Method
Many parts of the bus frame were connected by joint welding. These welded joints must be strong enough to ensure the safety of passengers when the bus overturns during an accident. To ensure the strength of this welded joint, it is necessary to test the joint. Testing can be done by experimenting directly on the connection or it can also be done by simulation using commercial software. Tests carried out must refer to standards that have been recognized by the international community. In this paper, a simulation will be conducted to test the strength of welded joints using the finite element method concerning the UN-ECE R66 standard. The tests carried out on the bus frame are located at 3 points, namely: the frame, wall frame, and bus roof frame. In the experiment, the object is given a force in the direction of a certain axis for a determined period until the object or object is deformed until a fracture occurs. The maximum stress value obtained at the stress point is used as data for the feasibility of the bus roll test to operate. Tests were carried out experimentally and by simulation using the finite element method. The test result shows that the fracture did not occur at the welded joint both for experimental and simulation. It means that the welded joint is strong enough when the bus overturns during the accident
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