关键词: 低速风洞, 飞行器编队飞行, 并联支撑机构, 刚度分析, 干涉分析

Abstract: In this paper, a wire-driven parallel suspension mechanism for two aircraft models in formation flight is designed to simulate the flight motion in a limited space channel with obstacles around it in wind tunnel test. Taking the helicop-ter as an example, based on the working condition parameters, the double wire-driven parallel mechanisms are designed as the support of the aircraft model, and the kinematic model of the helicopter for cooperative motion between the movable pulley suspension point and the helicopters in formation flight is established. Furthermore, the stiffness of the system is analyzed. Additionally, the algorithm of interference between the wire and the wire, the wire and the model in the process of two aircraft models in formation flight simulated flying and landing in the lim-ited space channel is given, and the interference analysis of the wire structure of the support mechanism is carried out. The analysis results show that the support mechanism designed in this paper can effectively solve the support interference problem for two aircraft models in formation flight in the limited space channel is given, and the sys-tem stiffness meets the stability requirements of low-speed wind tunnel test. It is an effective solution for aircraft model formation flight test in low-speed wind tunnel.

Key words: Low Wind Tunnel, Aircraft Formation Flight, Parallel Suspension Mechanism, Stiffness Analysis, Interference Analysis