悬架；纵向角振动；固有频率匹配；

Suspension; Pitching; Matching of natural frequencies;

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结果表明，具有主动控制悬架的汽车，其纵向角振动得到明显的衰减。

The simulation results indicated that the severity of pitching vibration of vehicle with an active suspension can be obviously reduced.

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试验分析说明铝合金5083纵向角接板焊接接头名义应力和热点应力疲劳s - N曲线试验数据拟合斜率为5。

The test analysis shows that the fitted slope of test data to nominal stress and hot spot stress S-N curves for aluminum 5083 welded joint with longitudinal fillet welded gusset is 5.

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