规范修正对垂尾连续紊流载荷的影响分析  

Influence of Regulation's Modification on Continuous Turbulence Loads of Vertical Tail

作　　者：荆志伟[1] 肖启之 侯宗团 

机构地区：[1]中航工业第一飞机设计研究院,陕西西安710089

出　　处：《航空科学技术》2015年第9期14-18,共5页Aeronautical Science & Technology

摘　　要：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。According to the up-to-date continuous turbulence design criteria of FAR-25, the influence of turbulence intensity＇s modification on the vertical tail dynamic loads was studied. Taking the regional aircraft with T-tail as an example, based on von Karman continuous turbulence model and the power spectral density（PSD） method, the continuous turbulence dynamic loads of vertical tail were obtained by employing the summation of forces method. The results show that the latest continuous turbulence design criteria of FAR-25 is no more dgour than previous cdteda. And the limit load of vertical tail decreases slightly, while the parameters of design conditions are different.

关 键 词：连续紊流 垂尾 动载荷 FAR-25 

分 类 号：V211.4[航空宇航科学与技术—航空宇航推进理论与工程]