轻量化蜂窝3D打印路径自适应生成技术  

Adaptive path generation for 3D printing of light-weight cellular

作　　者：孙登广 戴宁[1] 黄仁凯 张敏[1] 孟令尹 张壮 SUN Dengguang;DAI Ning;HUANG Renkai;ZHANG Min;MENG Lingyin;ZHANG Zhuang(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《计算机集成制造系统》2018年第8期1902-1909,共8页Computer Integrated Manufacturing Systems

基　　金：江苏省自然科学基金资助项目(BK20161487);江苏省六大人才资助项目(GDZB-034);航空科学基金资助项目(20151652024);江苏省重点研发计划资助项目(BE2016010-4);中央高校基本科研业务费专项资助项目(NS2017029)~~

摘　　要：为了解决当前模型轻量化的力学性能问题,根据材料和压应力分析生成参数可控的蜂窝状路径轨迹,提出一种轻量化蜂窝3D打印路径的自适应生成技术。通过对蜂窝路径的参数优化设计,建立了基于材料最少的优化模型和自适应压应力轨迹优化模型;基于蜂窝结构在承载下的力学性能分析,实现了对非均布载荷下轻量化蜂窝轨迹的自适应生成。实验分析表明,该方法能生成参数可控的自适应蜂窝路径轨迹结构,并可实现轻量化结构的力学性能优化,为提高局部承载性能轻量化结构的直接打印生成提供了新的思路。To solve the mechanical properties problems of the current model,an adaptive path generation method for 3D printing of light-weight cellular was proposed based on the parameterized-controllable honeycomb path generated according to the material and compressive stress.By optimizing the parameters of cellular path,the optimization model based on the least material and the trajectory optimization model of adaptive compressive stress was established.Based on the mechanical properties analysis of honeycomb structure under the load-bearing,the adaptive generation of light-weight honeycomb trajectory under non-uniform load was realized.Experimental results illustrated that the method could generate the adaptive cellular paths with parameter control and achieve the mechanical properties optimization of light-weight structures,which provided a new way for improving the local load-bearing performance and the direct printing of lightweight structures.

关 键 词：3D打印 轻量化 自适应路径 力学性能优化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]