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依据FAR-25对连续紊流设计的最新条款,研究了突风强度的修订对垂尾动载荷设计的影响。以T型尾翼布局的某支线客机为例,基于Von Karman连续紊流功率谱模型和线性连续紊流响应的功率谱方法,采用载荷累加方法获得垂尾的连续紊流动载荷。结果表明:FAR-25对连续紊流设计的最新条款没有超越以往设计准则,算例飞机垂尾连续紊流限制载荷有所下降,设计状态参数有所改变。
Based on FAR-25’s latest article on continuous turbulent flow design, the effect of the revision of gust intensity on the design of vertical tail load was studied. Taking a regional passenger aircraft with T-tail configuration as an example, the continuous turbulent flow at the vertical tail is obtained by the method of load accumulation based on the Von Karman continuous turbulence power spectrum model and the linear spectral continuum turbulence power spectrum method. The results show that the latest clauses of FAR-25 for continuous turbulence design do not exceed the previous design criteria. The results show that the limiting load of continuous turbulence at the vertical tail of the aircraft decreases and the design state parameters are changed.