Auto vibration has two main driving sources: one is engine reciprocation, which form the regular vibration; the other is random vibration that caused by uneven road.

• 主要讲述形成汽车振动的两大激励，一是往复式发动机运动激励，形成有规律的振动现象；二是道路高低不平引起的无规则的振动-随机振动。