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。 Transport aircraft in the process of using the cargo loading scheme is a practical problem that must be solved. The quality of cargoes in the cargo hold and the location of the cargoes will change. The quality distribution of the cargoes has a great influence on the vibration characteristics of the aircraft structure. Different loading schemes have different influences on the dynamic characteristics of the aircraft. Based on the structural dynamics, this paper analyzes the vibration characteristics of transport aircraft under different loading conditions. Finally, taking the different loading schemes during the airlift transition of a certain air group as an example, The impact of different loading programs on their flight safety, and put forward the corresponding loading improvement program.