摘要
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。
With the characteristics of large geometry size of optical system and supporting structure, large optical window area, easily lead to large axial and radial temperature gradient easily. The thermal control of an off-axis space optical remote-sensor was designed by means of thermal isolation, thermal transmission and multi-area temperature compensation. Through establishing finite element model of the structure of remote-sensor, the orbital heat fluxes, steady state and transient state of upper and lower temperature operating condition were calculated by I-DEAS/TMG software. The analysis results indicate that thermal design is feasible and could meet the requirement of work mission. The research method and results canould provide some guidance and provide reference to thermal design and analysis for off-axis space optical remote-sensor.
出处
《红外与激光工程》
EI
CSCD
北大核心
2011年第8期1521-1525,共5页
Infrared and Laser Engineering
基金
国家863计划(2009AA7020107)
关键词
离轴式空间光学遥感器
热设计分析
仿真
off-axis space optical remote-sensor
thermal design analysis
simulation
