关键词: 射流管, 伺服阀, 反馈组件, 有限元, 角度

Abstract:

In order to obtain an optimization design of  jet pipe hydraulic servo valve feedback components.The authors made theoretical derivation about the structure and properties of feedback components on the jet pipe servo valve.In view of the mathematical derivation of the feedback lever stiffness  is not accurate,we focused on the finite element analysis about curvature of the feedback lever.The best bending angle of the feedback leveris was determined as 135° ,the feedback force enhanced by 8.6% relalively to any other angle.This work makes  the design ideas about the feedback components clearly.Then,a finite element analysis model was used to simulate the spool and the jet pipe nozzle displacement when the electromagnetic torque acting on thearmature components. The relationship among torque, spool and the jet pipe nozzle was summed up.

Key words: et pipe;servo valve, feedback component;finite element, angle