Because of drawing reproduction and possible confusion and for clarity, Figure 1 – SAE J577 VibrationTestMachine drawing has been removed. Only the vibration requirements are shown.
The paper makes an analysis and study on the cracks found with the bottom case of ZD6-E electric point machine in the vibrationtest and gives suggestion on the improvement.
本文对ZD6电动转辙机在振动试验中出现的底壳多处断裂进行了分析和研究,并提出了改进措施。
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The diesel engine is a complicated machine with many vibration sources, so the traditional vibration analysis and single parameter test method cannot determine the diagnosis accurately.