Scholarlink

<p>This study proposes a component-adaptive insertion and deletion approach named CAID for MMC-based explicit topology optimization to reduce the dependence on prescribed initial component layouts. Variable width B-spline components are employed to provide an explicit and computer aided design compatible geometry description. Component insertion is guided by the density sensitivity indicator (DSI) and implemented through a competitive multi-seed strategy under a relaxed volume upper bound. Furthermore, an engulfed deletion mechanism is used to remove redundant or persistently inefficient components while preserving structural connectivity. A two-stage volume control scheme is implemented to balance early exploration with subsequent refinement at the target volume. Numerical experiments on four two-dimensional benchmark problems covering stiffness design and compliant mechanism synthesis demonstrate that the proposed method obtains consistent topologies from both blank and biased initial layouts and shows limited sensitivity to key algorithmic parameters.</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

A component-adaptive insertion and deletion (CAID) method using variable width B-splines for explicit topology optimization

  • 期刊论文

  • 发表日期：

    2026年7月8日

查看全文
  • Jierong Li,
  • Andrés Kecskeméthy,
  • Kozo Furuta,
  • Shinji Nishiwaki,
  • Xianmin Zhang,
  • Hai Li,
  • Rixin Wang,
  • Benliang Zhu

摘要

This study proposes a component-adaptive insertion and deletion approach named CAID for MMC-based explicit topology optimization to reduce the dependence on prescribed initial component layouts. Variable width B-spline components are employed to provide an explicit and computer aided design compatible geometry description. Component insertion is guided by the density sensitivity indicator (DSI) and implemented through a competitive multi-seed strategy under a relaxed volume upper bound. Furthermore, an engulfed deletion mechanism is used to remove redundant or persistently inefficient components while preserving structural connectivity. A two-stage volume control scheme is implemented to balance early exploration with subsequent refinement at the target volume. Numerical experiments on four two-dimensional benchmark problems covering stiffness design and compliant mechanism synthesis demonstrate that the proposed method obtains consistent topologies from both blank and biased initial layouts and shows limited sensitivity to key algorithmic parameters.