The Optimization Design of Dynamic Similarity for the Ground Experimental System of an Aircraft Launch Unit

With the development and exploration of the aircraft missile launch system, more and more new launchers are being investigated to improve the aircraft launch capability. It is not possible that all designs of aircraft weapon systems can be manufactured for testing with actual aircraft. Therefore, the ground launch test system, which can reproduce dynamic characteristics of the actual airborne launcher, is necessary. The design of the experimental system of the ground launcher is limited by the conditions of the ground support and installation, and the comprehensive dynamic characteristics of the whole system need to be simulated. This paper proposed an optimization design method based on multivariable optimization, which can adjust dynamic characteristics of the ground launch test system similarly to the actual airborne state. Through the simulations of the basic dynamic characteristics and the calculation of the dynamic response of the initial and optimized ground experimental system, it can be found that the proposed method can effectively control dynamic characteristics of the launch unit in the ground launcher experimental system similarly to the airborne state. This method can greatly reduce the difficulty in the verification of airborne weapon experiments and improve the effectiveness of such ground experiments.