论文部分内容阅读
针对某离轴式空间光学遥感器光学系统和支撑结构的几何尺寸大、通光孔面积大、易产生较大的轴向和径向温度梯度特点,采用热隔离、热疏导及多分区温度补偿等手段对其进行了热控设计。通过建立遥感器结构的热分析有限元模型,利用I-DEAS/TMG软件进行了轨道外热流、高低温稳态工况及瞬态工况仿真分析。分析结果表明,热设计方案合理可行,满足设计要求,研究方法及结果对离轴式空间光学遥感器的热分析和热设计有一定的指导和借鉴作用。
Aiming at the geometry size of the optical system and the support structure of an off-axis space optical remote sensor, the large aperture area of the optical aperture is easy to produce the larger axial and radial temperature gradient characteristics, and the thermal isolation, heat diversion and multi-zone temperature compensation And other means of its thermal control design. Through the establishment of the thermal analysis finite element model of the remote sensor structure, I-DEAS / TMG software was used to simulate the external orbital heat flow, high and low temperature steady-state conditions and transient conditions. The analysis results show that the thermal design scheme is reasonable and feasible and meets the design requirements. The research methods and results have some guidance and reference to the thermal analysis and thermal design of the off-axis space optical remote sensor.