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飞机红外辐射建模与仿真研究是综合自然环境仿真的重要分支,根据目标飞行状态建立红外辐射模型是当前仿真的需求。文中基于综合自然环境、空气动力学、传热学和发动机工作原理,建立了飞机在当前飞行状态下蒙皮及发动机尾喷管、羽流的红外辐射强度特性模型。在当前飞行状态为输入情况下,分析并计算了运动飞机的红外辐射特性,并通过仿真获到了飞机在不同状态下的红外辐射结果。此建模方法对国防军事仿真系统中的平台红外探测与实时红外场景生成具有重要意义。
Modeling and simulation of aircraft infrared radiation is an important branch of the integrated natural environment simulation. Establishing the infrared radiation model according to the target flight state is the current simulation requirement. Based on the integrated natural environment, aerodynamics, heat transfer theory and engine working principle, the model of infrared radiation intensity of skin and engine tail nozzle and plume under the current flight condition is established. Under the condition that the current flight state is input, the infrared radiation characteristics of the moving aircraft are analyzed and calculated, and the infrared radiation results of the aircraft under different states are obtained through simulation. This modeling method is of great significance to the platform infrared detection and real-time infrared scene generation in the defense military simulation system.