结冰条件下人机环复杂系统分布式仿真方法

摘要

飞机结冰严重影响飞行安全,基于人机环的飞行仿真是研究结冰飞行动力学特性与飞行安全的重要手段.针对复杂飞行仿真系统对实时性要求较高的特点,分析了反射内存网的组网构建方法与实时性工作方式,改进了结冰气动导数模型,开发了包括外部环境、气动力计算、风险评估与边界保护等7个网络节点的分布式仿真系统,为结冰飞行事故重现和飞行控制律验证提供了可靠的平台.提出了基于人机环实时仿真的飞行安全分析方法,包括结冰条件下飞行安全窗和基于相平面的稳定域,对提高驾驶员的情景感知能力,保障飞行安全具有参考价值.%Aircraft icing seriously threatens the flight safety.Flight simulation based on man-machine-envi-ronment system is a necessary method to study the flight dynamic characteristics and flight safety under icing conditions.In view of the complex flight simulation system for real-time characteristics,the construction of re-flective memory network and the real-time working style is analyzed.The model of icing aerodynamic derivative is improved.The distributed simulation system of seven network nodes,including external environment,aero-dynamic calculation,risk assessment,boundary protection and so on,is developed.The system is a reliable platform for icing flight accident recurrence and flight control law verification.A flight safety analysis method based on man-machine-environment real-time simulation is proposed,which includes flight safety window and stability area based on phase plane under the icing condition.It has reference value for improving pilot situation-al awareness to ensure flight safety.