基于主旋翼非对称操纵的ABC直升机气动干扰、非定常气动载荷及性能优化研究

能够高速飞行的ABC直升机是当前航空界的一个前沿研究领域，在国际上日益受到关注，具有重要的军事和经济价值。由于直升机旋翼的气动环境复杂，受到强烈的气动干扰，致其非定常气动力振动制约着高速直升机的发展，因此目前国际上ABC直升机理论研究的热点之一在于高速飞行时旋翼非定常气动载荷振动控制（减振）及性能优化。. 本项目围绕这一问题，基于申请人近期所提出的非简化多解配平方法，拟探讨一种新的途径来改善这一问题。本研究将建立耦合了多解配平方法的综合CFD气动分析模型，研究多种飞行状态下主旋翼的操纵策略及相应的气动干扰机理。通过ABC直升机上、下主旋翼的非对称控制，来达到非定常气动载荷减振和性能优化的目的。. 本项目的工作既可填补目前国际上ABC直升机主旋翼操控策略方面研究的空白，又可为解决复杂的ABC直升机相关气动问题提供有力的分析手段。可望在该领域取得一些新进展，提供一些新思路。

High-flight-speed ABC helicopter, one of the most important research frontiers with high economic and military value in modern aviation research area, is receiving more and more attention from people. The helicopter rotor has complicated aerodynamic environment with strong aerodynamic interference. And the flight-speed of ABC helicopters is restricted by the vibration of the unsteady aerodynamic loads of main rotors. Therefore, one of the ABC helicopter research hot spot is the work of vibration control of the unsteady aerodynamic loads and the performance optimization during high speed flight.. Present project is focusing on this problem, planning to discuss a new solution based on the non-simplified multi-solution trim method proposed by the applicant. Present research will build a comprehensive aerodynamic analytical model coupled with the multi-solution trim method. And the control strategies and aerodynamic interference mechanism of multiple flight conditions will be researched. The aim of vibration control of the unsteady aerodynamic loads and the performance optimization will be achieved by means of the asymmetrical control of the upper and lower main rotors of ABC helicopters.. Present work could both improve the research of control strategies and provide powerful analytical solution to complicated aerodynamic problems of ABC helicopters. And new progresses and ideas could be obtained.