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连续紊流是适航规范中阵风载荷分析必须考虑的一种阵风模型,但其引起的阵风载荷在飞机结构设计中的应用一直存在困难.在平稳随机过程的假设下,基于von Kar-man连续紊流功率谱模型和线性系统连续紊流响应的功率谱方法,使用载荷累加法获得外载荷形式的阵风载荷.在此基础上,通过引入载荷响应的相关性推导并建立了一种生成多组连续紊流平衡外载荷分布的方法.垂向连续紊流情况下的算例结果表明:连续紊流外载荷分布是全机平衡的.平衡的外载荷分布可通过机动飞行载荷分析中的载荷包线方法识别载荷设计情况,从而应用于飞机结构的强度分析与设计.
Continuous gusting is a kind of gust model which must be considered in the gust load analysis of airworthiness regulation, but the gust load caused by gust loads has been difficult to be applied in the design of aircraft structure.Under the assumption of stationary stochastic process, based on von Kar-man continuous Turbulent power spectrum model and continuous turbulence response of linear system, the gust load in the form of external load is obtained by using load accumulation method.On the basis of introducing the correlation of load response, a multi-group Continuous turbulence equilibrium external load distribution method.An example of vertical continuous turbulence results show that: the continuous load distribution of external turbulence is the whole machine balance.The balance of the external load distribution can be through the maneuvering flight load analysis of the load package Line method to identify the load design, which applied to the strength of the aircraft structure analysis and design.