基于3D打印技术的康复支具设计与应力应变分析  

Design and Stress-Strain Analysis of Rehabilitation Brace Based on 3D Printing Technology

作　　者：李素丽 马恺悦 石洪宝 LI Suli;MA Kaiyue;SHI Hongbao(College of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054

出　　处：《技术与创新管理》2022年第3期291-297,共7页Technology and Innovation Management

基　　金：国家重点实验室开放课题研究基金项目(SKLMS2021016)。

摘　　要：为探究3D打印技术在个性化康复支具创新设计中的具体应用方法,采用人体建模软件,通过扫描患者CT数据,建立了三维数字化人体模型。以成年男子的腰腹康复支具为研究对象,根据人体躯干数据,采用人体建模软件分别建立了实体式、矩形式、镂空式3种康复固定支具模型,并对其进行划分网格,分别赋予材料(ABS材料)后在有限元软件中进行了静力学分析。通过对3种康复固定支具模型的应力应变数据的对比,发现实体式康复固定支具应力应变最小;矩形孔式康复固定支具应力应变次之;镂空式康复固定支具应力应变最大,但都满足要求,但镂空式康复固定支具具有透气性好、贴合性好、美观、轻便等优势,此研究结果可为医生的选择提供参考。In order to explore the specific application method of 3D printing technology in the innovative design of personalized rehabilitation braces,a three-dimensional digital human body model was established by scanning CT data of patients and using modeling software.Taking adult men’s waist and abdomen rehabilitation brace as the research object,according to the data of human torso,three kinds of rehabilitation fixed brace models of solid type,rectangular type and hollow type were established respectively by using human body modeling software,and they were divided into grids.After assigning the material(ABS material)separately,the static analysis was carried out in the finite element software.By comparing the stress-strain data of the three rehabilitation fixation brace models,the results show that the stress and strain of the solid rehabilitation immobilization brace is the smallest;the stress and strain of the rectangular hole rehabilitation immobilization brace is the second;the hollow-out rehabilitation fixation brace has the largest stress and strain,but all meet the requirements.However,the hollow-out rehabilitation fixation brace has the advantages of good ventilation,good fit,beauty,and lightness.The research results will provide a reference for doctors to choose.

关 键 词：3D打印 康复固定支具 静力场 应力分析 应变分析 

分 类 号：TG44[金属学及工艺—焊接]