机电液耦合器单向流固耦合分析  

One-Way Fluid-Structure Coupling Simulation of Electromechanical-Hydraulic Couplers

作　　者：焦致远 张洪信[1,2] 韩明轩 刘保泉 JIAO Zhiyuan;ZHANG Hongxin;HAN Mingxuan;LIU Baoquan(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China;Power Integration and Energy Storage System Engineering Technology Center,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛大学动力集成及储能系统工程技术中心,山东青岛266071

出　　处：《青岛大学学报（工程技术版）》2022年第2期27-33,共7页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：国家自然科学基金资助项目(52075278)。

摘　　要：针对机电液耦合器流固耦合分析对结构设计和后续材料选取的重要性,本文分析了机电液耦合器的结构和工作原理,建立了流固耦合数学模型,形成机电液耦合器的单向流固耦合分析方法。在Workbench中的Design Modeler提取斜盘式柱塞泵的流体域,通过Fluent软件进行瞬态和稳态流场仿真分析,并利用Static Structural对结构进行单向流固耦合仿真分析。仿真结果表明,在额定工况下,求解得到斜盘式柱塞泵最大变形为0.04309 mm,最大等效应力为247.75 MPa,说明流体动力各部件的总变形和等效应力满足要求,配流盘处的应力较大,安全系数有待提高。该研究为结构设计提供了参考,具有一定的研究价值。In view of the importance of fluid structure coupling analysis of electromechanical hydraulic coupler to structural design and subsequent material selection,this paper analyzes the structure and working principle of the electro-hydraulic coupler,establishes the mathematical model of fluid structure coupling,and presents unidirectional fluid structure coupling analysis method for electromechanical hydraulic coupler.Fluid domain of one of the swashplate plunger pumps is extracted by DesignModeler in Workbench,simulation of transient and steady state flow is performed by Fluent,and a one-way fluid-structure coupling simulation of the structure is done using Static Structural.The maximum deformation of swashplate piston pump is 0.04309 mm and the maximum equivalent stress is 247.75 MPa.The results show that the total deformation and equivalent forces of the hydrodynamic components satisfy the requirements at rated operating conditions,the stress at the flow distribution plate is higher and the safety factor needs to be improved.The research provides a reference for structural design and has a certain research value.

关 键 词：斜盘式柱塞泵 流场 静力学分析 单向流固耦合 

分 类 号：TH137.331[机械工程—机械制造及自动化]