重庆理工大学学报（自然科学版）2025，Vol.39Issue(3)：172-179,8.DOI:10.3969/j.issn.1674-8425(z).2025.02.021
摆线齿轮泵转子建模设计与流量特性仿真分析
Modeling design and flow characteristic simulation analysis of cycloidal gear pump rotors
摘要
Abstract
The CB-B series cycloidal gear pumps are commonly used as hydraulic boost pumps in aviation engine fuel pump test systems.To ensure stable oil pressure transmission and uniform oil supply under high-pressure and high-vibration conditions,modeling design and flow characteristic analysis are necessary.The current design of the epitrochoid pump tooth profile heavily relies on traditional mechanical theory analysis without incorporating flow characteristic analysis,resulting in low operational reliability.By analyzing the meshing characteristics of rotor pairs,determining the arc radius coefficient and involute coefficient,and optimizing the distribution plate structure based on fluid properties,we build a rotor model.By analyzing the meshing characteristics of the rotor pair,determining the arc radius coefficient and generation coefficient,and optimizing the distribution surface structure based on fluid characteristics,we build a geometric model.The flow analysis adopts a lumped parameter approach based on the rotor's geometric features,discretizing the fluid domain within the pump,calculating the dynamic flow of each chamber,and classifying the pump body leakage for further analysis,leading to the establishment of a mathematical fluid model.Finally,a dynamic flow model of the cycloidal pump is built by using the AMESim platform.Compared to the pre-optimization results,the error is controlled within 1％,the flow unevenness coefficient is below 5％,and the outlet pressure fluctuation is within 2％,meeting the operational requirements.关键词
齿廓参数/啮合特性/流量特性/泄漏分析/仿真模拟Key words
gear profile parameters/meshing characteristics/flow characteristics/leakage analysis/simulation modeling分类
机械制造引用本文复制引用
刘国宁,吕展博,武昊天..摆线齿轮泵转子建模设计与流量特性仿真分析[J].重庆理工大学学报（自然科学版）,2025,39(3):172-179,8.基金项目
河南省产学研重点支持项目(172107000008) （172107000008）
