Design methodology using topology optimization for anti-vibration reinforcement of generators in a ship's engine room

Masafumi Daifuku, Takafumi Nishizu, Akihiro Takezawa, Mitsuru Kitamura, Haruki Terashita, Yasuaki Ohtsuki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Structural optimization for reinforcing the anti-vibration characteristics of the generators in the engine room of a ship is presented. To improve the vibration characteristics of the structures, topology optimization methods can be effective because they can optimize the fundamental characteristics of the structure with their ability to change the topology of the target structure. Topology optimization is used to improve the characteristics of the anti-vibration reinforcement of the generators in the engine room. First, an experimentally observed vibration phenomenon is simulated using the finite element method for frequency response problems. Next, the objective function used in topology optimization is set as the dynamic work done by the load based on the energy equilibrium of the structural vibration. The optimization problem is then constructed by adding the volume constraint. Finally, based on finite element analysis and the optimization problem, topology optimization is performed on several vibration cases to improve their performance and reduce weight.

Original languageEnglish
Pages (from-to)216-226
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment
Volume230
Issue number1
DOIs
Publication statusPublished - 2016 Feb 1
Externally publishedYes

Keywords

  • design
  • Dynamics
  • maritime artifacts
  • maritime systems
  • numerical modeling
  • ship production modeling
  • structural response

ASJC Scopus subject areas

  • Ocean Engineering
  • Mechanical Engineering

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