空间遥感器圆柱体电控箱的设计与分析

Design and Research for Columned Electrically Controlled Box of Space optical Remote Sensor

针对空间相机上方形电控箱体积大、质量重、信号干扰大的缺点,设计了一种体积小、质量轻且能有效减小信号干扰的圆形空间相机电控箱。通过对比分析方形、圆形电控箱的优缺点及对整机性能的的影响,给出了空间相机圆柱体电控箱的优化设计结果。相机电控箱采用轻质高强的MB15镁合金材料;针对电控箱本身及其中对整机影响较大的电子元器件进行了相应的防辐照设计;有限元分析结果显示,应力远小于材料的屈服极限,强度空间足够大;设计的圆柱体电控箱结构固有频率达到了120Hz,符合设计指标提出的不小于100Hz的技术要求。设计的空间相机圆柱形电控箱能在复杂的空间环境下正常工作,满足航天使用要求。

In view of the shortcomings of square electronic controlled box volume on some space optical remote sensor,such as large size,high weight and strong signal interference,a circular cylinder electrically controlled box was designed,which had smaller size,lighter weight and could effectively reduce signal interference.After compared the advantages and disadvantages of the two boxes,the design optimization results was given for the space optical remote sensor cylinder electronic control box.The MB15 magnesium alloy was used for electronic box,which had light weight and high-strength.Corresponding the box itself and the important electronic component,the anti-radiation design was performed.The analysis result showed that stress was much smaller than the yield strength of the material,the strength space was large enough.The natural frequency of the box had achieved 120 Hz,which was much larger than the technical requirements of 100 Hz.The cylindrical electronic control box for the space optical remote sensor could work normally in the complex environment of space,meet the operation requirements.