基于响应面的离体器官机械灌注磁力泵底座优化设计  

Optimization design of magnetic pump pedestal for mechanical perfusion of isolated organs based on response surface

作　　者：赵露露 周鹏 郝旺身[1] ZHAO Lulu;ZHOU Peng;HAO Wangshen(School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450066;Guangdong Foshan Lianchuang Graduate School of Engineering,Foshan 528300)

机构地区：[1]郑州大学机械与动力工程学院,河南郑州450066 [2]广东佛山联创工程研究生院,广东佛山528300

出　　处：《机械设计》2025年第1期11-18,共8页Journal of Machine Design

基　　金：河南省科技攻关项目(202102210075)。

摘　　要：离体器官机械灌注设备可以有效解决供体短缺的问题,减小术后并发症的风险,是近年来器官保存的研究热点。为了提高离体器官机械灌注设备磁力泵传递的最大静磁力矩,同时减小磁力泵底座的变形与应力,文中提出了一种数字化建模与响应面法优化设计相结合的方法。通过CREO对磁力泵底座数字化建模并进行静力学仿真分析,在此基础上利用响应面分析并结合多目标优化的方法进行优化设计,从而得到磁力泵底座有限元模型的最佳设计方案。结果表明:传递的最大静磁力矩为原来的1.7倍,最大等效应力减小了52.13%,最大变形量减小了55.6%。最后,通过模态分析和静力学仿真对优化后的模型进行验证,结果满足磁力泵底座的设计要求,为以后磁力泵底座的开发与应用提供了理论支撑。Mechanical perfusion of isolated organs which effectively addresses donor shortage and reduce the risk of postoperative complications is a hot topic of organ preservation in recent years.In this article,in order to improve the maximum static magnetic torque transmitted by the magnetic pump as well as reduce the magnetic pump pedestal’s deformation and stress,an approach combining digital modeling and RSM(response surface method)optimization design is proposed.With the help of CREO,the magnetic pump pedestal is subject to both digital modeling and static simulation;on this basis,both the responsesurface analysis and the multi-objective optimization method are used to identify the optimal scheme for the finite-element model of the magnetic pump pedestal.The results show that after optimization the maximum static magnetic torque transmitted by the magnetic pump is 1.7 times of that before optimization,the maximum equivalent stress reduces by 52.13%,and the maximum deformation reduces by 55.6%.Finally,the optimized model is verified through mode analysis and static simulation;the results meet the design requirements of the magnetic pump pedestals.This study provides theoretical support for development and application of magnetic pump pedestals in the future.

关 键 词：磁力泵底座 数字化建模 优化设计 响应面分析 最大静磁力 

分 类 号：TH789[机械工程—仪器科学与技术]