修剪
可制造性设计
几何造型
参数统计
几何设计
格子(音乐)
计算机科学
参数化设计
立体光刻
参数化模型
工程制图
工程类
机械工程
数学
统计
物理
操作系统
声学
作者
Zhuangyu Li,Wenlei Xiao,Gang Zhao,Ziqi Zhou,Shulin Chen,Changri Xiong
出处
期刊:Journal of Computational Design and Engineering
[Oxford University Press]
日期:2024-03-06
卷期号:11 (2): 345-364
被引量:2
摘要
Abstract Geometric modeling has been integral to the design process with the introduction of Computer-Aided Design. With additive manufacturing (AM), design freedom has reached new heights, allowing for the production of complex lattice structures not feasible with traditional manufacturing methods. However, there remains a significant challenge in the geometric modeling of these lattice structures, especially for heterogeneous strut-based lattice structures. Current methods show limitations in accuracy or geometric control. This paper presents the Virtual-Trim, a novel method for the geometric modeling of heterogeneous strut-based lattice structures that is both efficient and robust. Virtual-Trim begins with user-defined wireframe models and geometric information to create STL (STereoLithography) models ready for AM, eliminating the need for labor-intensive Boolean operations. The fundamental principles and steps involved in Virtual-Trim are extensively described within. Additionally, various models using Virtual-Trim method are designed, and the performance of Virtual-Trim in terms of generation time and model size is analyzed. The successful printing of these models attests to the method’s excellent manufacturability.
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