一种面向器件热管理的仿真模型降阶方法及系统

By using the block second-order Arnoldi algorithm and the Galerkin projection method to reduce the order of the thermal simulation model, the problem of efficient simulation of complex devices under multiple heat sources and multiple boundary conditions is solved, and high-precision, low-memory, fast thermal management simulation is achieved.

CN122046847BActive Publication Date: 2026-07-17TANGSHAN TECH (NINGBO) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TANGSHAN TECH (NINGBO) CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-17

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Abstract

本发明公开了一种面向器件热管理的仿真模型降阶方法及系统，属于数值计算与仿真分析技术领域。该方法针对现有有限元热仿真全阶系统计算量大、难以高效处理多热源及投影方法内存消耗高的问题。该方法包括构建包含表征多热源或多边界条件输入矩阵的全阶热传导第一状态方程；随后应用块二阶Arnoldi算法对输入矩阵进行迭代处理，生成正交基矩阵；利用该正交基矩阵采用Galerkin投影方法对第一状态方程降阶，构建第二状态方程；最后对降阶方程进行时域迭代求解并还原得到全阶温度场响应结果。本发明采用块二阶Arnoldi算法有效捕捉多热源下的动力学特征，采用Galerkin投影显著降低内存占用，在保证高精度的同时大幅缩短仿真时间。
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