飞机地面振动试验中激振力矢量优化技术研究

摘要

在飞机地面振动试验中，激振力矢量的优化直接影响模态识别结果的精度。本文主要介绍了在飞机地面振动试验中，激振力矢量(包括激振力位置、大小及方向)的优化技术，并在具有密集模态的飞机模型地面振动试验中进行了应用，使试验的效率和精度得到了很大的提高，验证了激振力优化技术的可行性，具有一定的工程应用价值。%The shaker force vector has a great effect on the precision of mode identification in ground vibration test (GVT).The optimization of shaker force vector in ground vibration test, including the location,the magnitude and the direction of the force,is introduced in this paper. This optimization method,applied in the aircraft ground vibration test with dense mode,can greatly improve the efficiency and precision of this test,and the feasibility of this optimization method is verified.The optimization methodology conceived in this paper is proved to be valuable in aeronautic engineering.