便携式双传感器夜视镜是一种应用于军事作战中的重要仪器，而作为其核心零部件--壳体，必须保证在复杂作战环境下不会发生过量变形及应力集中，以免造成仪器失效。从选择该仪器壳体材料和建立模型着手，考虑夜视镜壳体上所受其他零部件给予的等效压力及弯矩，对其在2种极端的环境下进行仿真分析，得到-30℃及70℃两种情况下壳体所受最大应力及应变，并分析是否能够满足使用要求。%Portable dual sensor night vision goggles are important instruments in military operations. As its core component, the shell must avoid excessive deformation and stress concentration in complex operational environment in order to prevent equipment failures. This article introduced how to select the instrument shell material and build the modeling .Taking into account the equivalent pressure on night vision goggles the shell suffered from other components, the paper gives simulation analysis under two extreme conditions, simulating its biggest stress and strain at-30℃ and 70℃, andanalyzing whether to meet the requirements.
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