Topology optimization using structural discrete elements

Akihiro Takezawa, Shinji Nishiwaki, Kazuhiro Izui, Masataka Yoshimura, Hidekazu Nishigaki, Yasuaki Tsurumi

Research output: Contribution to journalArticlepeer-review


Computer Aided Engineering (CAE) has been successfully utilized in mechanical industries, but few CAE tools that include structural optimization can be utilized at the conceptual design phase, since the development of such tools has been based on continuum mechanics that limit the provision of useful design suggestions at this phase. In order to mitigate this problem, a new type of CAE based on classical structural mechanics, First Order Analysis (FOA), is proposed. In this paper, we present a topology optimization method that corresponds to FOA concepts. This optimization method is constructed, based on discrete and function-oriented elements such as frame, panel and spring elements, and sequential convex programming. In addition, examples are provided to show the utility of the methodology presented here for mechanical design engineers.

Original languageEnglish
Pages (from-to)1008-1015
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number4
Publication statusPublished - 2004 Apr
Externally publishedYes


  • Computer Aided Engineering
  • Design Engineering
  • Framed Structure
  • Optimum Design
  • Sensitivity Analysis
  • Structural Analysis

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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