中文摘要：

为了加速空间目标温度计算,提高空间目标红外仿真速度,提出了基于量化状态积分的离散形式热平衡方程求解方法,利用节点方程中不同节点温度变化速度不同的特点,动态调节节点方程的计算量。构造节点方程与节点变量及输入向量分量关系链表,利用模型中方程与变量关系的稀疏性简化计算。根据空间目标温度计算有限元模型的一般形式,在对角化热容矩阵的基础上,分析得到节点方程与节点温度及表面输入辐射量间的关系链表,进行量化状态积分。通过大型太阳帆板温度计算的算例,对四阶龙格库塔法与量化状态方法进行了对比,证明量化状态积分方法在保证精度的情况下提高了仿真速度。

英文摘要：

To increase the speed of space target temperature calculation and space target infrared simulation,a method was proposed which solved discrete form heat balance equation based on quantized state integration.Difference in the speed of node temperature change in node equations was used to dynamically adjust the computation load.Sparse relationship between equations and variables were used to simplify calculation based on the constructed relation lists according to inter-relations between node equations and node variables as well as input vector components.General form finite element model for space target temperature calculation was built,based on which relation lists of inter-relations were obtained after analyzing relationship among node equations,node temperatures and radiation inputs.Quantized state integration was subsequently performed.Computer simulation was carried out for the temperature calculation of a large solar panel using 4th order Runge-Kutta method and quantized state integration method respectively,which proved the speedup of the proposed algorithm while satisfying the accuracy constraint.