摘要
燃油离心泵的叶轮轴向力平衡设计是提升产品性能、寿命、可靠性等技术指标的重要途径,随着航空发动机技术的发展,对燃油离心泵叶轮轴向力平衡设计提出了更为苛刻的要求;现有设计技术、仿真技术、测试技术难以准确指导叶轮轴向力平衡设计,造成燃油离心泵异常磨损等故障频发。通过对燃油离心泵结构特征、工作原理进行分析,设计了一种燃油离心泵工作过程中测试叶轮轴向力的新技术,该技术将燃油离心泵工作过程中承载的轴向力传递给作动筒活塞,再使用闭环控制原理,控制作动筒两腔液压力保证在叶轮轴向力作用下作动筒活塞位置保持不变,通过作动筒两腔液压力和液压作用面积即可算出叶轮轴向力的大小;本研究的测试技术可以有效指导燃油离心泵叶轮轴向力平衡设计,优化产品结构从而提高产品可靠性。
The axial force balance design of the impeller of the fuel centrifugal pump is an important way to improve the product performance,life,reliability and other technical indicators.With the development of aeroengine technology,more stringent requirements are put forward for the axial force balance design of the impeller of the fuel centrifugal pump;The existing design technology,simulation technology and testing technology cannot to accurately guide the axial force balance design of the impeller,resulting in frequent failures such as abnormal wear of the fuel centrifugal pump.This paper analyzes the structural characteristics and working principle of the fuel oil centrifugal pump,and designs a new technology to measure the axial force of the impeller during the working process of the fuel oil centrifugal pump.This technology transfers the axial force carried by the fuel oil centrifugal pump during the working process to the piston of the actuating cylinder,and then uses the closed-loop control principle to control the hydraulic pressure in the two chambers of the actuating cylinder to ensure that the piston position of the actuating cylinder remains unchanged under the axial force of the impeller.The axial force of the impeller can be calculated by the hydraulic pressure of the two chambers of the actuating cylinder and the hydraulic action area.The testing technology studied in this paper solves the problem of testing the axial force of the impeller during the working process of the fuel oil centrifugal pump,can effectively guide the axial force balance design of the impeller of the fuel oil centrifugal pump and optimize the product structure,thus improving the reliability of the product.
作者
邹品文
马高长
严社斌
杨栋柱
王德钊
潘鹤
ZOU Pinwen;MA Gaozhang;YAN Shebin;YANG Dongzhu;WANG Dezhao;PAN He(Aecc Guizhou Honglin Aero Engine Control Technology Co.,Ltd.,550009 Guiyang,China)
出处
《应用力学学报》
CAS
CSCD
北大核心
2024年第3期509-515,共7页
Chinese Journal of Applied Mechanics
基金
国家重点研究计划资助项目(No.2020YFB0311600)。
关键词
燃油离心泵
叶轮轴向力
平衡设计
新技术
测试难题
fuel centrifugal pump
impeller axial force
balanced design
new technology
test challenge
