aerodynamic load的意思|示意

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英语单词aerodynamic load的用法讲解

Aerodynamic load是一个航空学名词，意思是飞行器受到空气动力的负荷。它包括飞行器表面站立的任何空气动力负载，如垂直面、升力叶、水平安定面等，以及飞行器质量上所受的各种下行载荷。

Aerodynamic load is the aerodynamic force system acting on a flying vehicle. As the velocity of the flying vehicle which moves in the air changes, a aerodynamic load also changes, which includes lift, drag, side force, and pitching moment, etc.The lift is one of the most important components of the aerodynamic force, which is generated by the surface of the flying vehicle, and the form and size of the lift depend on the type of the flying vehicle. The drag force acts along the negative direction of its velocity. It is inversely proportional to the velocity and directly proportional to the air density and the area of the flying vehicle. The side force exists when the flying vehicle turns or there is asymmetric distribution of the surface of the flying vehicle. It is perpendicular to the lift vector. The pitching moment is the resultant moment of the lift vector and the drag vector, which is used to change the angle of attack and the rotation of the flying vehicle.

Aerodynamic load is the most important factor which affects the performance of the flying vehicle. Its calculation and analysis are necessary to increase the stability and the safety of the vehicle. The pilots should be aware of the aerodynamic load that their aircraft is under to ensure safe operation.