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出 处:《光电工程》2009年第7期89-93,共5页Opto-Electronic Engineering
基 金:军队基金资助项目
摘 要:建立了坦克动力舱装甲板温度场数值计算模型,针对坦克动力舱装甲板的红外特性进行了理论计算。采用耦合计算方法计算了装甲板的温度场,通过装甲板和空气双向耦合换热计算,并考虑太阳辐射对装甲板温度场的影响,预测了装甲板温度场分布和辐射强度分布。动力舱装甲板温度场的计算结果与测试结果的相对误差小于9.034%,基本满足工程设计的需要。研究结果表明,动力舱顶装甲板是主要辐射源,排气百叶窗和排气管附近顶装甲板是坦克的红外辐射特征明显区域。A numerical analysis model for computing the temperature field of the tank power compartment armored plate was set up. The infrared radiation feature of the tank power compartment armored plate was calculated in theory. Solid wall surface temperature field was computed by adopting coupling calculation method, coupling heat transfer between armored plate and air was computed and effect of sun irradiation on board temperature field was considered. Then, temperature field distribution and radiation spectrum intensity distribution were forecasted. The relative error of the calculating values is less than 9.034%, which can basically meet the requirements of engineering applications. The study result indicates that the top board of power compartment is the mainly source of radiation. Exhaust shutter and top armored plate near exhaust pipe are the evident region of IR radiation character of tank.
分 类 号:TN219[电子电信—物理电子学]
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