Nearly every driver has experienced that feeling of great tiredness, where it becomes almost impossible to stay awake at the wheel.

几乎每个司机都经历过那种极度疲劳的感觉，在那种情况下开车几乎不可能保持清醒。

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The research in this thesis maintains a great theoretic and practical value by applying the FEA into the tiredness evaluation system of the contact line support frame.

由于所选择建立的模型有着一定的代表性，因此所得的分析的结果可以作为接触网支持架疲劳评估的理论数据。

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