飞机设计
飛機設計
비궤설계
AIRCRAFT DESIGN
2011年
5期
26-31,35
,共7页
运输机%装载方案%有限元方法%动态特性
運輸機%裝載方案%有限元方法%動態特性
운수궤%장재방안%유한원방법%동태특성
cargo-transport airplane%loading plan%finite element method%dynamic characteristic
运输机在使用过程中,货物的装载方案是一个必须解决好的实际问题。货舱内货物质量与安放位置等会发生变化,货物质量分布对机体结构振动特性影响较大,不同的装载方案对飞机的动态特性影响不同。本文从运输机使用安全角度出发,基于结构动力学对不同装载条件下运输机振动特性进行了分析,最后以某航空兵团空运转场过程中不同装载方案为例,讨论了某航空兵团空运转场过程中不同装载方案对其飞行安全的影响,并提出了相应的装载改进方案。
運輸機在使用過程中,貨物的裝載方案是一箇必鬚解決好的實際問題。貨艙內貨物質量與安放位置等會髮生變化,貨物質量分佈對機體結構振動特性影響較大,不同的裝載方案對飛機的動態特性影響不同。本文從運輸機使用安全角度齣髮,基于結構動力學對不同裝載條件下運輸機振動特性進行瞭分析,最後以某航空兵糰空運轉場過程中不同裝載方案為例,討論瞭某航空兵糰空運轉場過程中不同裝載方案對其飛行安全的影響,併提齣瞭相應的裝載改進方案。
운수궤재사용과정중,화물적장재방안시일개필수해결호적실제문제。화창내화물질량여안방위치등회발생변화,화물질량분포대궤체결구진동특성영향교대,불동적장재방안대비궤적동태특성영향불동。본문종운수궤사용안전각도출발,기우결구동역학대불동장재조건하운수궤진동특성진행료분석,최후이모항공병단공운전장과정중불동장재방안위례,토론료모항공병단공운전장과정중불동장재방안대기비행안전적영향,병제출료상응적장재개진방안。
In the use of transport airplane, it is a practical problem that must be well solved for transportation of cargo. The weight and place of cargo in the airplanes will change as the variation of practical need. Different loading plans will influence on plane＇s vibration characteristics and the plane＇s security and control can＇t be ensured. So it is very important to research and assess aircraft＇s vibration characteristic with different loading plans. This paper analyzed the airplane＇s dynamic characteristic in different loading plans on basis of structural dynamics of airplane＇s safety. Firstly, the airplane＇s finite element model was established based on finite element methods. Secondly, dynamic characteristic in different loading plans is analyzed. Finally, dynamic characteristic of airplanes is evaluated in different loading plans according to ten different loading plans of airlift ferry for aviation Troop. The plan is reasonable come from practical application.
