GEO衛(wèi)星紅外地球敏感器熱設(shè)計敏感性分析

Sensitivity analysis of thermal design of infrared earth sensor for GEO satellite

摘要: 文章提出了一種GEO衛(wèi)星紅外地球敏感器的熱設(shè)計方法，建立了紅外地球敏感器熱數(shù)學模型,，對影響紅外地球敏感器散熱的熱設(shè)計要素進行敏感性定量分析,，以指導優(yōu)化熱設(shè)計。分析驗證表明：經(jīng)過優(yōu)化的紅外地球敏感器熱控方案,，能很好地滿足衛(wèi)星15 a壽命期紅外地球敏感器工作溫度要求,。該設(shè)計方法已在“東方紅四號”平臺系列衛(wèi)星上成功應用,，并得到在軌驗證。

Abstract: The method of the thermal design for infrared earth sensors mounted outside the GEO satellite is presented, and a thermal ma|thematical model is built. Based on the sensitivity analysis of the influencing factors, the design scheme is optimized. Results she that the scheme call satisfy the requirements of the working temperature of the sensors during the 15a life cycle of the satellite. This design method has already been applied to the DFH-4 platform series satellites successfully, and be verified in the orbit.