Structural Static Analysis of Microwave Tubes Based on Multi-level Preconditioner

Small mechanical perturbations of structures can possibly lead to electrical failure of the microwave tubes and even cause the structures of the microwave tubes destroyed. In order to design the optimal microwave tubes, in addition to ensuring the performance of the main electrical parameters, the reliability of heat dissipation and structural force needs to be analyzed. The displacement field of structure plays a vital role in performance analysis of the microwave tubes. In this paper, a three-dimensional structural static analysis method of microwave tubes combined with three-level preconditioner is developed based on finite element method, which can quickly obtain the structural deformation under force. The numerical results show that the technology proposed in this paper has the same accuracy as ANSYS, and has high-efficiency performance.