Transient Thermal Analysis of Microwave Tube Based on Finite Element Method

Among the many numerical calculation methods for thermal analysis, the finite element method has become the most versatile numerical calculation tool due to its good simulation capability for complex geometric boundaries and inhomogeneous material properties. In this paper, we propose a fast finite element solution method for transient thermal analysis of microwave tubes, which adopts a post-Eulerian time iteration format for finite element time discretization to ensure the stability of the time iteration algorithm. Based on the theory of fast finite element for thermal analysis of microwave tubes, the transient thermal analysis module in TS[1], a thermal analysis simulation design software with full intellectual property rights is developed. By modelling the transient thermal analysis of microwave tubes and comparing with the commercial software ANSYS, the computational accuracy and computational performance of TS are verified.