直升机地面共振就是直升机在地面工作状态时发生的旋翼——机体耦合自激振动，在直升机研制设计中必须设法避免它。
对某新型直升机垂直起落状态“地面共振”初步分析，采用经典的空间动力模型进行计算。
This paper described the primary analysis of a new model helicopter ground resonance in taking off and landing by employed classical spatial dynamic model.
起落架动刚度及阻尼特性是研究直升机“地面共振”问题两个重要参数。
Dynamic stiffness and damping characteristics of landing gears are important parameters to be used to investigate the "ground resonance" of helicopters.
针对滑橇式起落架直升机 ，提供了一种“地面共振”动力稳定性分析的方法。
An analytical method of ground resonance dynamic stability countering the helicopters with ski landing gears is provided.
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