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Study on 3-D Measurement Method Using Image Processing Technique for Dynamic Displacement in Shake Table Tests

[+] Author Affiliations
Satoshi Fujita, Daisuke Nakano

Tokyo Denki University, Tokyo, Japan

Osamu Furuya

Tokyo Metropolitan College of Technology, Tokyo, Japan

Yasushi Niitsu

Tokyo Denki University, Inzai, Chiba, Japan

Tadashi Mikoshiba

National Research Institute for Disaster Prevention, Tsukuba-shi, Japan

Paper No. PVP2003-2095, pp. 1-7; 7 pages
doi:10.1115/PVP2003-2095
From:
  • ASME 2003 Pressure Vessels and Piping Conference
  • Seismic Engineering
  • Cleveland, Ohio, USA, July 20–24, 2003
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4157-X
  • Copyright © 2003 by ASME

abstract

This study has been doing research and development of 3-dimensional measurement method using an image processing technique for a measurement of dynamic displacement in shake table test. This measurement system is a very convenient system because it can measure the 3-D dynamic displacement in shake table test in which the several makers are only attached to the surface of an experimental structure. The system therefore is the most suitable measurement system for an evaluation of complex 3-dimensional behaviour of test model. Fundamental hardware and software for the measurement system has been constructed until now. The fundamental dynamic measurement accuracy and effectiveness of the measurement system has been also confirmed from several shake table tests. In this paper, the dynamic measurement accuracy in three measurement units on the assumption of practical use is described from the results of shake table tests in National Research Institute for Earth Science and Disaster Prevention using the collapse building and the inverted pendulum model.

Copyright © 2003 by ASME

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