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考虑到红外探测器的分辨精度以及某些海面目标具有的厚壳体结构,对影响厚壳结构目标温度场随时间变化的数值解的因素进行了分析,主要研究数值求解过程中分割精度对温度场的影响。通过调节目标厚壳体结构的厚度以及控制体结构微元的分割精度,选取非稳态的计算方法,模拟目标温度场随时间变化的数值解。得到了体结构的分割精度对温度场的影响规律,结果显示,在对体结构进行分割时分割精度对温度场的影响是不容忽略的,也进一步证实,厚壳目标采用非稳态计算方式是十分有必要的。
Taking into account the resolution accuracy of infrared detectors and the thick shell structure of some sea targets, the factors influencing the numerical solution of the target temperature field over time with thick shell structure are analyzed. The main research is the influence of the segmentation accuracy on temperature The impact of the field. By adjusting the thickness of the target thick shell structure and the precision of the micro structure of the control structure, the unsteady calculation method was chosen to simulate the numerical solution of the target temperature field with time. The results show that the influence of the segmentation accuracy on the temperature field can not be neglected when the body structure is segmented. It is further confirmed that the non-steady state calculation method of the thick shell target is Very necessary.