基于3D打印的大尺寸猪笼草口缘区仿生表面设计

doi:10.3901/JME.2021.13.225

机械工程学报 ›› 2021, Vol. 57 ›› Issue (13): 225-231.doi: 10.3901/JME.2021.13.225

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基于3D打印的大尺寸猪笼草口缘区仿生表面设计

姜晨¹, 朱达¹, 魏久翔¹, 孔令豹²

1. 上海理工大学机械工程学院上海 200093;
2. 复旦大学信息科学与工程学院上海 200433

收稿日期:2020-09-23 修回日期:2021-03-11 出版日期:2021-07-05 发布日期:2021-08-31
通讯作者: 姜晨(通信作者),男,1978年出生,博士,教授,博士研究生导师。主要研究方向为精密加工及检测技术。E-mail:jc_bati@163.com
作者简介:朱达,男,1995年出生,主要研究方向为精密加工技术。E-mail:zhud1115@163.com
基金资助:
国家自然科学基金资助项目（51475310）

Design of Large-scale Structural Surfaces Inspired by the Peristome of Nepenthes Alata Based on 3D Printing

JIANG Chen¹, ZHU Da¹, WEI Jiuxiang¹, KONG Lingbao²

1. School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093;
2. School of Information Science and Technology, Fudan University, Shanghai 200433

Received:2020-09-23 Revised:2021-03-11 Online:2021-07-05 Published:2021-08-31

摘要/Abstract

摘要： 为了解决现有猪笼草口缘区仿生表面由于结构尺寸小而难以实现大批量制备的问题，设计并采用3D打印制备具有单向铺展性的大尺寸结构猪笼草口缘区仿生表面。根据毛细作用理论分析面向大尺寸结构的猪笼草口缘区结构参数铺展作用机理，基于3D打印精度分析和微流道流体仿真，计算获得具有单向铺展性的百微米级以上结构参数范围；采用光固化成型方法制备具有大尺寸微结构的仿生表面，通过液体铺展试验测试仿生表面的液体单向铺展性能，获得性能良好的百微米级结构猪笼草口缘区仿生表面。结果表明：空腔楔角30°，椭圆半长轴570 μm，微流道宽度360 μm、盾形微结构体长360 μm、盾形微结构拉伸长度200 μm的仿生表面具有优异的液体单向铺展特性，采用常规3D打印技术即可实现其快速制备。

关键词: 仿生表面, 液体单向铺展, 猪笼草口缘区, 结构参数, 3D打印

Abstract: Bioinspired surfaces inspired by the peristome of nepenthes alata are difficult to industrialized preparation due to small-scale structure. To solve the problem, the bioinspired surfaces which have large-scale structure and the uni-directional liquid spreading characteristics are designed and prepared by 3D printing. After revealing the uni-directional liquid spreading mechanism, the range above hundreds of microns is obtained based on precision analysis of conventional 3D printing and CFD simulation. Finally, fluid spreading experiments show that a bioinspired surface with 30° microcavity wedge, 570 μm half major axis of ellipse, 360 μm microchannel width, 360 μm shield microstructure length and 200 μm shield microstructure tensile length which has the property of excellent uni-directional liquid spreading can be prepared by conventional 3D printing.

Key words: bioinspired surface, uni-directional liquid spreading, Nepenthes alata peristome, structural parameters, 3D printing

中图分类号:

TB17

姜晨, 朱达, 魏久翔, 孔令豹. 基于3D打印的大尺寸猪笼草口缘区仿生表面设计[J]. 机械工程学报, 2021, 57(13): 225-231.

JIANG Chen, ZHU Da, WEI Jiuxiang, KONG Lingbao. Design of Large-scale Structural Surfaces Inspired by the Peristome of Nepenthes Alata Based on 3D Printing[J]. Journal of Mechanical Engineering, 2021, 57(13): 225-231.

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基于3D打印的大尺寸猪笼草口缘区仿生表面设计

Design of Large-scale Structural Surfaces Inspired by the Peristome of Nepenthes Alata Based on 3D Printing

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