气垫车辆静垫升稳定性分析

The Rise Stability of Air-cushion Vehicle

静垫升稳定性是气垫车辆的关键特性之一,为了得到影响气垫车辆静垫升稳定性的主要因素,为气垫车辆实际设计与改装提供依据,针对BJ2032ZLF1车型所改装的气垫车辆,使用大型工程软件ADAMS和ANSYS建立了地面沉陷模型、气垫车辆多体动力学模型和流场模型,并对气垫车辆的静垫升过程进行了仿真,分析了气垫车辆在不同整车几何参数与力学参数影响下的静垫升稳定性,得到了气垫车辆能否平稳垫升取决于车辆改装后的重量分布、地面沉陷情况和车底气压中心位置的结论。

The rise stability is one of the key performances of air - cushion vehicle. In order to obtain the main factor that affects this performance and provide the gist for the design and reconstruction of the air- cushion vehicle, the ground sink model, the vehicle multi - body dynamic model and the fluid field model are built with the engineer- ing software ADAMS and ANSYS based on the air - cushion vehicle which is reconstructed from the BJ2032ZLF1. The rise process of the air - cushion vehicle is simulated, through which the rise stability of the air - cushion vehicle is analyzed under the effect of different vehicle geometry and mechanical parameters. The result of the simulation indicates that the rise stability of the air - cushion vehicle is dependent on the vehicle weight distribution, the ground sink and the center position of air pressure under the vehicle.