摘要
建立了某直升机地面共振分析力学模型,计算了起落架在桨毂中心处的等效刚度和阻尼,针对某直升机进行了地面共振分析,同时分析了摆振铰外伸量、质量静距、桨毂中心有效刚度等对地面共振的影响,为避免地面共振及参数改进提供依据。
This paper established a mechanical model of a helicopter ground resonance analysis to calculate the equivalent stiffness and damping of the landing gear in the hub center, It is according shimmy hinge overhang amount and the quality of the static and the effective stiffness of the hub center to avoid ground resonance for parameters improved.
出处
《航空科学技术》
2013年第2期45-49,共5页
Aeronautical Science & Technology
关键词
直升机
地面共振
起落架
阻尼
特征值
helicopter
ground resonance
landing gear, damping
eigenvalue
