主应力场驱动的复杂薄壁件刚度增强方法

doi:10.3969/j.issn.1004-132X.2021.12.012

中国机械工程 ›› 2021, Vol. 32 ›› Issue (12): 1479-1485.DOI: 10.3969/j.issn.1004-132X.2021.12.012

主应力场驱动的复杂薄壁件刚度增强方法

张伟南;戴宁;郭策;余逸;龚赛

南京航空航天大学机电学院，南京，210016

出版日期:2021-06-25 发布日期:2021-07-08
通讯作者: 戴宁（通信作者），男，1978年生，教授。研究方向为逆向工程、数字化设计制造技术等。发表论文70余篇。E-mail:dai_ning@nuaa.edu.cn.
作者简介:张伟南，男，1996年生，硕士研究生。研究方向为数字化设计、轻量化设计等。发表论文3篇。E-mail:zhangwn@nuaa.edu.cn。
基金资助:
国家自然科学基金(51775273)；
国防基础科研计划基础研究与前沿技术项目（JCKY2018605C010）；
国防创新特区项目（18-163-12-ZT-004-063-01）；
江苏省重点研发计划(BE2018010-2)；
南京航空航天大学直升机传动技术重点实验室自主课题（HTL-A-19G012）

Stiffness Enhancement Method for Complex Thin-walled Parts Driven by Principal Stress Field#br#

ZHANG Weinan;DAI Ning;GUO Ce;YU Yi;GONG Sai

College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016

Online:2021-06-25 Published:2021-07-08

摘要/Abstract

摘要： 针对传统井字形加强筋等加强方式在复杂薄壁件的刚度增强效果并不总是最优的问题，提出了一种复杂薄壁件的刚度增强方法。探究了基于主应力场模型的王莲筋脉布局的仿生原理，提出了主应力场驱动的复杂薄壁件轻量化刚度增强优化方法。实验结果表明，与井字形加强筋结构相比，结构质量基本相同时，该方法生成的复杂薄壁件的比刚度增大33%。

关键词: 薄壁结构, 主应力线, 高刚仿生结构, 肋壳结构, 三维打印

Abstract: Aiming at the problems that stiffness enhancement effectiveness of traditional reinforcing methods such as intersecting parallels stiffener was not always optimal in complex thin-walled parts, a stiffness enhancement method for complex thin-walled parts was proposed. Bionic principle of Victoria Warren vein layout was explored based on main stress field model, and an optimization method for lightweight stiffness enhancement of complex thin-walled parts driven by principal stress field was proposed. Experimental results show that the specific stiffness of the complex thin-walled parts generated by this method increases by 33% when mass of the structure is almost equal to that of the traditional intersecting parallels stiffeners.

Key words: thin-walled structure, principal stress line(PSL), biomimetic structure with high stiffness, rib-shell structure, 3D printing

中图分类号:

TH112

张伟南, 戴宁, 郭策, 余逸, 龚赛. 主应力场驱动的复杂薄壁件刚度增强方法[J]. 中国机械工程, 2021, 32(12): 1479-1485.

ZHANG Weinan, DAI Ning, GUO Ce, YU Yi, GONG Sai. Stiffness Enhancement Method for Complex Thin-walled Parts Driven by Principal Stress Field#br#[J]. China Mechanical Engineering, 2021, 32(12): 1479-1485.

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http://www.cmemo.org.cn/CN/Y2021/V32/I12/1479

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主应力场驱动的复杂薄壁件刚度增强方法

Stiffness Enhancement Method for Complex Thin-walled Parts Driven by Principal Stress Field#br#

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