通过以举升缸下支座分析为例，详细论述了以通用有限元软件和疲劳分析软件为平台，对汽车零件进行疲劳分析的过程。

And combined with the fatigue analysis of the dumping low-bracket, the commercial software based fatigue analysis process of automobile part is elaborated.

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分析了在地震作用下该支座产生竖向位移的原因和影响因素，并通过试验验证了理论分析的结果。

Then an analysis is made of the cause and influencing factors of the vertical displacement of the bearing and proved by experimental results.

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基于试验结果，拟合出了考虑各关键参数影响的火灾下两跨连续梁边支座反力与梁跨中变形的计算公式。

Calculation formula of side support reaction and deflection in the mid-span of beams subjected to fire were obtained by fitting curves of experimental data considering each key factor.

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