在对油压挖掘机进行评价时,动稳定性是应该考虑的最重要的项目之一。因为由挖掘作业引起的过大的冲击和俯仰运动,不仅使机械性能变坏,而且会降低司机的工作效率。这篇报告提供评价动稳定性的理论方法和判定依据,其内容概括如下: (1)分析俯仰运动,给出运动方程式,一般结合冲击力条件。 When evaluating a hydraulic excavator, dynamic stability is one of the most important items to consider. Because of the excessive impact and pitching movements caused by the excavation work, not only the mechanical properties are deteriorated, but also the efficiency of the driver is reduced. This report provides the theoretical method and judgment basis for evaluating dynamic stability. The contents are summarized as follows: (1) Analyze the pitch motion, give the equation of motion, and generally combine the impact conditions.