Damage detection method by topology optimization based on eigenvalue analysis

Takafumi Nishizu; Akihiro Takezawa; Mitsuru Kitamura

Damage detection method by topology optimization based on eigenvalue analysis

Takafumi Nishizu, Akihiro Takezawa, Mitsuru Kitamura

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The non-destructive testing is significant in the long life operation of large structure such as ships. In the non-destructive testing, the variation in structural characteristics from the original one to the damaged one is used to identify the damage. In this paper, a damage identification method in non-destructive testing is proposed using difference of eigenvalue between the original structure and the damaged one. Damage is specified by topology optimization that minimizes this difference. An optimization algorithm is constructed based on the topology optimization and MMA. The validity and the usefulness of the proposed method are confirmed by several numerical examples.

Original language	English
Title of host publication	Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
Publisher	International Society of Offshore and Polar Engineers
Pages	883-889
Number of pages	7
ISBN (Print)	9781880653913
Publication status	Published - 2014
Externally published	Yes
Event	24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan - Busan, Korea, Republic of Duration: 2014 Jun 15 → 2014 Jun 20

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Other

Other	24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Country	Korea, Republic of
City	Busan
Period	14/6/15 → 14/6/20

Keywords

Eigenvalue analysis
Finite element method
MMA
Non-destructive inspection
Sensitivity analysis
SIMP
Topology optimization

ASJC Scopus subject areas

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

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Cite this

Nishizu, T., Takezawa, A., & Kitamura, M. (2014). Damage detection method by topology optimization based on eigenvalue analysis. In Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan (pp. 883-889). (Proceedings of the International Offshore and Polar Engineering Conference). International Society of Offshore and Polar Engineers.

Damage detection method by topology optimization based on eigenvalue analysis. / Nishizu, Takafumi; Takezawa, Akihiro; Kitamura, Mitsuru.

Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. International Society of Offshore and Polar Engineers, 2014. p. 883-889 (Proceedings of the International Offshore and Polar Engineering Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishizu, T, Takezawa, A & Kitamura, M 2014, Damage detection method by topology optimization based on eigenvalue analysis. in Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. Proceedings of the International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers, pp. 883-889, 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan, Busan, Korea, Republic of, 14/6/15.

Nishizu, Takafumi ; Takezawa, Akihiro ; Kitamura, Mitsuru. / Damage detection method by topology optimization based on eigenvalue analysis. Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan. International Society of Offshore and Polar Engineers, 2014. pp. 883-889 (Proceedings of the International Offshore and Polar Engineering Conference).

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