Topology optimization for designing strain-gauge load cells

Akihiro Takezawa, Shinji Nishiwaki, Mitsuru Kitamura, Emílio C.N. Silva

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Load cells are used extensively in engineering fields. This paper describes a novel structural optimization method for single- and multi-axis load cell structures. First, we briefly explain the topology optimization method that uses the solid isotropic material with penalization (SIMP) method. Next, we clarify the mechanical requirements and design specifications of the single- and multi-axis load cell structures, which are formulated as an objective function. In the case of multi-axis load cell structures, a methodology based on singular value decomposition is used. The sensitivities of the objective function with respect to the design variables are then formulated. On the basis of these formulations, an optimization algorithm is constructed using finite element methods and the method of moving asymptotes (MMA). Finally, we examine the characteristics of br the optimization formulations and the resultant optimal configurations. We confirm the usefulness of our proposed methodology for the optimization of single- and multi-axis load cell structures.

Original languageEnglish
Pages (from-to)387-402
Number of pages16
JournalStructural and Multidisciplinary Optimization
Volume42
Issue number3
DOIs
Publication statusPublished - 2010 Sep

Keywords

  • Compliant mechanism
  • Load cell
  • Singular value decomposition
  • Strain gauge
  • Topology optimization

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Control and Optimization

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