CAJ | 학술논문

为了降低航空相机反射镜在复杂且恶劣环境下的面形误差，通过选用合适的光学材料、合理的支撑方式，对系统反射镜支撑组件进行了静力学、动力学建模，优化了结构形式。采用光机热集成分析方法，指导、评价和优化相机光机系统设计过程，提高结构固有频率，增强相机热稳定性适应范围。相机结构设计基频大于200Hz，在±5℃均匀温变工况和重力作用下，相机反射镜面形PV值小于λ/10，RMS值小于λ/40，光学系统传递函数（MTF）达到0.44。结果表明，采用该方法设计的光机结构固有频率高，重力及热耦合变形、抗振性能等方面均能满足要求，系统具有良好的成像质量。
위료강저항공상궤반사경재복잡차악렬배경하적면형오차，통과선용합괄적광학재료、합리적지탱방식，대계통반사경지탱조건진행료정역학、동역학건모，우화료결구형식。채용광궤열집성분석방법，지도、평개화우화상궤광궤계통설계과정，제고결구고유빈솔，증강상궤열은정성괄응범위。상궤결구설계기빈대우200Hz，재±5℃균균온변공황화중력작용하，상궤반사경면형PV치소우λ/10，RMS치소우λ/40，광학계통전체함수（MTF）체도0.44。결과표명，채용해방법설계적광궤결구고유빈솔고，중력급열우합변형、항진성능등방면균능만족요구，계통구유량호적성상질량。
In order to reduce the surface deformation of the aerial camera in complex and execrable environment, by choosing appropriate optical material and the reasonable support way, the system reflector support component’s static and dynamic models are designed, the structure form is optimized. The thermal-structural-optical integrated analysis method is used to guide, evaluate and optimize the camera opto-mechanical systems design process, improve the natural frequency of the structure and enhance thermal stability range. The fundamental frequency of the structure is greater than 200 hz, the surface precision of the camera reflector reaches PV:λ/10 and RMS:λ/40 and the optical system transfer function (MTF) reaches 0.41 under influence of deadweight and uniform temperature change of ±5℃. The results show indicate that the proposed design can meet the requirements of high structure natural frequency, the gravity and thermal coupling deformation, vibration resistance, etc., and the system has good imaging quality.