Research on valve core’s clamping stagnation of double flapper-nozzle servo valve

• 作 者: 赵建华 Zhang Bin Chen Tao Wang Qi
• 机 构: HebeiProvincialKeyLaboratoryofHeavyMachineryFluidPowerTransmissionandControl
• 出 处: 高技术通讯:英文版
• 发表日期: 2019年1期
• 关键词: DOUBLE flapper-nozzle servo valve flow-solid-thermal coupling numerical simulati
• 基金项目: the National Natural Science Foundation of China (No. 51705445),Natural Science Foundation of Hebei Province of China (No. E2016203324),Open Foundation of the State Key Laboratory of Fluid Power and M

Due to great changing of instantaneous temperature of hydraulic oil of double flapper-nozzle servo valve, thermal deformation between valve core and valve sleeve may result in catching phenomenon of valve core, and then the reliability of servo valve coul