Time domain numerical simulation method for quickly determining micro-discharge threshold of component

Abstract

The invention discloses a time domain numerical simulation method for quickly determining a micro discharge threshold of a component, which comprises the following steps of: establishing a three-dimensional geometric model for describing the minimum size structure of the component, and dividing the three-dimensional geometric model into a plurality of hexahedral grids; determining boundaries and material attributes of the three-dimensional geometric model and secondary electron emission characteristic parameters of the material; adopting free electrons in a macro particle simulation space to define the initial energy, the charge quantity, the mass, the initial distribution state and the initial motion direction of macro particles; establishing a macro particle linked list, and initializingthe macro particle linked list; and based on the three-dimensional geometric model, the boundary and material attributes of the three-dimensional geometric model, the secondary electron emission characteristic parameters of the material and the macro-particle linked list, performing micro-discharge threshold numerical simulation from the micro-discharge threshold scanning power initial value P0.According to the invention, the simulation efficiency of micro-discharge numerical simulation is improved.

Description

technical field [0001] The invention belongs to the technical field of space-borne microwave components, in particular to a time-domain numerical simulation method for quickly determining the micro-discharge threshold of a component. Background technique [0002] The high microdischarge risk of high-power microwave components of spacecraft is a key factor affecting the long life and high reliability of spacecraft payloads, and it is also the largest single-point failure link of satellites under high-power applications. For the micro-discharge design of high-power microwave components, effective numerical simulation and threshold analysis are the key steps for ground verification, which can avoid the long development period caused by experiments and repeated design changes, and even the failure to obtain the maximum operating power. The problem of sexual design. [0003] The three-dimensional numerical simulation technology of micro-discharge based on full-wave electromagnet...

AI Technical Summary

Problems solved by technology

For the micro-discharge design of high-power microwave components, effective numerical simulation and threshold analysis are the key steps for ground verification, which can avoid the long development period caused by experiments and repeated design changes, and even the failure to obtain the maximum operating power. The question of sexual design

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