航空科学技术
航空科學技術
항공과학기술
Aeronautical Science and Technology
2015年
9期
14-18
,共5页
连续紊流%垂尾%动载荷%FAR-25
連續紊流%垂尾%動載荷%FAR-25
련속문류%수미%동재하%FAR-25
continuous turbulence%vertical tail%dynamic loads%FAR-25
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。
依據FAR-25對連續紊流設計的最新條款，研究瞭突風彊度的脩訂對垂尾動載荷設計的影響。以T型尾翼佈跼的某支線客機為例，基于Von Karman連續紊流功率譜模型和線性連續紊流響應的功率譜方法，採用載荷纍加方法穫得垂尾的連續紊流動載荷。結果錶明：FAR-25對連續紊流設計的最新條款沒有超越以往設計準則，算例飛機垂尾連續紊流限製載荷有所下降，設計狀態參數有所改變。
의거FAR-25대련속문류설계적최신조관，연구료돌풍강도적수정대수미동재하설계적영향。이T형미익포국적모지선객궤위례，기우Von Karman련속문류공솔보모형화선성련속문류향응적공솔보방법，채용재하루가방법획득수미적련속문류동재하。결과표명：FAR-25대련속문류설계적최신조관몰유초월이왕설계준칙，산례비궤수미련속문류한제재하유소하강，설계상태삼수유소개변。
According to the up-to-date continuous turbulence design criteria of FAR-25, the inlfuence of turbulence intensity’s modiifcation 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 rigour than previous criteria. And the limit load of vertical tail decreases slightly, while the parameters of design conditions are different.
