B样条曲面与点梯度源构建功能梯度材料模型  

Functionally graded materials model is constructed by b-spline surface and point gradient source

作　　者：韩硕 周婧 彭壮壮 韩晓伟 王世杰 段国林[1] HAN Shuo;ZHOU Jing;PENG Zhuangzhuang;HAN Xiaowei;WANG Shijie;DUAN Guolin(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China;Department of Intelligent Manufacturing,Chengde College of Applied Technology,Chengde 067000,China;College of Mechanical Engineering,Tianjin University of Science&Technology,Tianjin 300222,China)

机构地区：[1]河北工业大学机械工程学院,天津300401 [2]承德应用技术职业学院智能制造系,承德067000 [3]天津科技大学机械工程学院,天津300222

出　　处：《计算机集成制造系统》2022年第12期3779-3788,共10页Computer Integrated Manufacturing Systems

基　　金：中央引导地方科技发展项目资金资助项目(216Z1804G);天津市自然科学基金资助项目(18JCQNJC75100)。

摘　　要：利用3D打印技术制备功能梯度材料成为研究热点,但仍需要一种可以实现材料的梯度变化与组分自定义设计的建模方法来设计杂材料分布或仿生结构的功能梯度材料模型。鉴于此,本文提出基于多点梯度源与B样条曲面节点结合的功能梯度材料建模方法,根据功能梯度材料设计原则,在材料空间内建立B样条曲面,并将梯度源中心放置曲面节点上构建材料模型,根据材料分布结构,将材料空间映射至工件几何空间中,得到复杂结构功能梯度材料模型。以Visual Studio2019为建模系统开发平台,通过3D打印实验验证了该方法的正确性与可行性。The fabrication of functionally graded materials using 3D printing technology has become a research hotspot.However,a modeling method that can realize gradient change of materials and customized design of components is still needed to design the functional gradient material model of the distribution of miscellaneous materials or bionic structures.The functionally graded materials modeling method based on the combination of multi-point gradient source and B-spline surface gradient nodes was proposed.According to the principle of functionally graded materials design,B-spline surface in material space was established,and the center of the gradient source was placed at the surface node to construct material model.Based on the material distribution structure,the material space was mapped to the workpiece geometry space to obtain a complex structure functionally graded materials model.By taking Visual Studio 2019 as the modeling system development platform,the correctness and feasibility of the proposed method was verified through 3D printing experiments.

关 键 词：3D打印 功能梯度材料 梯度源 B样条曲面 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]