Scholarlink

<p>This paper presents a density-based topology optimization approach to design stiffener layouts on thin-walled tubular structures with minimal length scale control. A novel density mapping scheme is proposed to represent the stiffener topology, along which the minimum length scales of the width and spacing of the stiffeners are explicitly controlled through the multi-phase density projection method. The buckling-resistant stiffeners are obtained based on an aggregated optimization formulation of linear buckling load factors with nonlinear buckling verifications. The proposed approach can be applied to design lightweight thin-walled structures of arbitrary cross-sectional geometries and multi-curvature regions with desirable buckling resistance while ensuring manufacturability. Numerical examples are provided to show its effectiveness and applicability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Minimal length scale control in topology optimization of thin-walled tubular structures

  • 期刊论文

  • 发表日期：

    2025年9月20日

查看全文
  • Mingdong Zhou,
  • Hongjiang Mao

摘要

This paper presents a density-based topology optimization approach to design stiffener layouts on thin-walled tubular structures with minimal length scale control. A novel density mapping scheme is proposed to represent the stiffener topology, along which the minimum length scales of the width and spacing of the stiffeners are explicitly controlled through the multi-phase density projection method. The buckling-resistant stiffeners are obtained based on an aggregated optimization formulation of linear buckling load factors with nonlinear buckling verifications. The proposed approach can be applied to design lightweight thin-walled structures of arbitrary cross-sectional geometries and multi-curvature regions with desirable buckling resistance while ensuring manufacturability. Numerical examples are provided to show its effectiveness and applicability.