基于AMESim的航空齿轮泵流体流量脉动特性仿真分析OA北大核心CSTPCD

The flow pulsation produced in the working process of aviation gear pump not only affects its performance and life,but also directly affects the reliability of aviation hydraulic system.In this paper,AMESim is used to establish a system model of aviation gear pump,and the theoretical flow,fundamental frequency,simulated flow and fundamental frequency of aviation gear pump fluid are compared and analyzed.And the effects of speed,tooth number,modulus and tooth width on the fluid flow pulsation of aviation gear pump are studied.The results show that the system simulation results are consistent with the theoretical solution,which verifies the correctness of the aviation gear pump system model.With the increase of speed,number of teeth,modulus and tooth width,the pulsation amplitude of the fluid flow of aviation gear pump showed an increasing trend.With increasing speed,the flow pulsation rate hardly changes.With the increase of the number of teeth,the flow pulsation rate tends to decrease.With the increase of modulus and tooth width,the flow pulsation rate shows an increasing trend.At the same time,it is found that the flow pulsation of aviation gear pump is characterized by wide frequency and multi harmonic.The research results provide theoretical basis and technical support for suppressing fluid flow pulsation of aviation gear pump.