• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (8): 331-343.doi: 10.3901/JME.2025.08.331

• 交叉与前沿 • 上一篇    

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基于流-固耦合的蠕动泵流量特性研究

刘富文1, 李清野1, 宗超勇1, 张彦峰2, 宋学官1   

  1. 1. 大连理工大学机械工程学院 大连 116024;
    2. 保定雷弗流体科技有限公司河北省流体精密传输技术创新中心 保定 071000
  • 收稿日期:2024-04-24 修回日期:2024-10-25 发布日期:2025-05-10
  • 作者简介:刘富文,男,1997年出生。主要研究方向为多学科耦合建模与优化设计。E-mail:lfwcfpl@mail.dlut.edu.cn;宋学官(通信作者),男,1982年出生,博士,教授,博士研究生导师。主要研究方向为多学科耦合建模与优化设计、工业大数据挖掘及数据驱动的预测技术、人工智能与装备数字孪生。E-mail:sxg@dlut.edu.cn
  • 基金资助:
    国家重点研发计划(2018YFB1700704)和国家自然科学基金(52075068)资助项目。

Flow Characteristics of Peristaltic Pump Based on FSI Analysis

LIU Fuwen1, LI Qingye1, ZONG Chaoyong1, ZHANG Yanfeng2, SONG Xueguan1   

  1. 1. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024;
    2. Hebei Province Fluid Precision Transmission Technology Innovation Center, Baoding Lead Fluid Technology Co., Ltd., Baoding 071000
  • Received:2024-04-24 Revised:2024-10-25 Published:2025-05-10

摘要: 蠕动泵是蠕动运输方式应用的典型装置,被广泛应用于各行业。蠕动泵在运作时会产生流量脉动,从而造成输出流量的不稳定,要想改善蠕动泵的脉动状况,就需要对其流量特性进行全面的研究。蠕动泵问题是一个固有的多物理场问题,软管和泵送的流体之间是强耦合的。采用试验与数值模拟结合的方法对蠕动泵展开研究,建立蠕动泵的流固耦合(Flow-solid interaction,FSI)模型,模拟了蠕动泵的工作周期,并将仿真结果与试验结果进行对比,验证了数值模型的可靠性。通过流固耦合分析得到了蠕动泵工作周期内软管内部流体的压力与速度及出口的流量,分析研究了流量脉动产生的原因。重点研究压块直径、辊子直径、软管内径等因素对蠕动泵流量及流量脉动的影响。

关键词: 蠕动泵, 数值模拟, 流固耦合, 流量脉动

Abstract: The peristaltic pump is a typical device for the application of peristaltic transport mode,which is widely used in various industries. The peristaltic pump will produce flow pulsation in operation, resulting in unstable output flow, and to improve the pulsation of the peristaltic pump, a comprehensive study of its flow characteristics is required.The peristaltic pump problem is an inherently multi-physics field problem with strong coupling between the hose and the fluid being pumped.Using a combination of experimental and numerical simulations to study the peristaltic pump, the flow-solid interaction(FSI) model of the peristaltic pump is established, the working cycle of the peristaltic pump is simulated, and the simulation results are compared with the experimental results to verify the reliability of the numerical model.The pressure and velocity of the fluid inside the hose and the flow rate at the outlet during the working cycle of the peristaltic pump were obtained through fluid-structure interaction analysis, and the causes of the flow pulsation were analyzed and studied.It focused on the effect of the pressure block diameter, roller diameter, hose inner diameter and other factors on the peristaltic pump flow and flow pulsation.

Key words: peristaltic pump, numerical simulation, fluid-solid coupling, flow pulsation

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