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本文提出了计算起落架结构的疲劳寿命应同时计及起落次数和地面运动时间的二维模型,建立了疲劳寿命极限图和二维载荷谱的概念,给出了计算实例。这种模型有助于设计思想和维修思想的更新。
In this paper, a two-dimensional model for calculating the fatigue life of the landing gear structure, which takes into account both the landing times and the ground movement time, is proposed. The concept of the fatigue life limit map and the two-dimensional load spectrum are established, and the calculation examples are given. This model helps to update design and maintenance ideas.