基于ANSYS的红外光学系统的有限元分析

红外光学系统作为空-空导弹的重要有机组成部分，要经历复杂的动力学环境。采用有限元分析方法对红外光学系统结构在工作状态下的变形、应力及固有频率进行了全面分析。验证了光学系统的结构是否满足光学像质要求和刚度要求，确定了面形变化的显著区域，并专门对其中的关键结构进行了详细分析，进而提出结构优化的途径。该方法对光学系统结构设计和分析具有现实意义，有助于进一步分析研究光学系统结构动力学。

Finite element analysis of IR optical system based on ANSYS

As an important part of the air-to-air missile, IR optical system will experience various complex dynamical situations. A complete analysis to the deformation, stress, and resonance of IR optical system was made with the finite element method to validate whether the optical system meets the image quality and mechanical stiff requirements, and the distinct deformation area was determined. The key structures of the optical system were analyzed in detail, and the approach to optimize the structure of the system was proposed.