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某型号装载机在进行台架破坏性试验时动臂出现裂纹。利用MSC/NASTRAN软件对台架试验工况进行了模拟,对动臂进行了强度分析,找到了导致裂纹出现的原因,并提出了最终的改进方案。该机型以后的工作实践证明了改进方案的正确性和有效性。
A model loader cracks in the boom when carrying out destructive bench tests. The test conditions of the bench were simulated by using MSC / NASTRAN software. The strength of the boom was analyzed to find out the cause of the crack and the final improvement was proposed. The model after the practice proved the correctness and effectiveness of improved programs.