Title:
METHOD FOR MEASUREMENT OF VIBRATION PROPERTY OF STRUCTURE, AND VIBRATION PROPERTY MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/158503
Kind Code:
A1
Abstract:
A method for measuring a vibration property of a structure by applying an impulse input to the structure, which comprises: step (A) of pulse-irradiating the surface of the structure or a part adjacent to the surface with a laser beam to apply an impulse input to the structure and measuring a response output from the structure to which the impulse input has been applied; step (B) of determining the relationship between the laser intensity of the laser beam and the impulse input induced by the laser beam by a rigid pendulum method and determining an impulse input (F) corresponding to the laser intensity of the laser beam, with which the structure has been pulse-irradiated, based on the relationship; and step (C) of measuring the vibrational amplitude value of frequency response of the structure from the response output measured in step (A) and the impulse input (F) measured in step (B).
Inventors:
KAJIWARA, Itsuro (())
梶原 逸朗 (())
梶原 逸朗 (())
Application Number:
JP2011/003412
Publication Date:
December 22, 2011
Filing Date:
June 15, 2011
Export Citation:
Assignee:
National University Corporation Hokkaido University (Kita 8-jyo Nishi 5-chome, Kita-ku Sapporo-sh, Hokkaido 08, 〒0600808, JP)
国立大学法人北海道大学 (〒08 北海道札幌市北区北８条西５丁目 Hokkaido, 〒0600808, JP)
Shibaura Institute of Technology (3-7-5 Toyosu, Koto-ku Tokyo, 48, 〒1358548, JP)
学校法人芝浦工業大学 (〒48 東京都江東区豊洲３－７－５ Tokyo, 〒1358548, JP)
国立大学法人北海道大学 (〒08 北海道札幌市北区北８条西５丁目 Hokkaido, 〒0600808, JP)
Shibaura Institute of Technology (3-7-5 Toyosu, Koto-ku Tokyo, 48, 〒1358548, JP)
学校法人芝浦工業大学 (〒48 東京都江東区豊洲３－７－５ Tokyo, 〒1358548, JP)
International Classes:
G01M7/00; G01M99/00
Attorney, Agent or Firm:
WASHIDA, Kimihito (8th Floor, Shinjuku First West Bldg. 1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
Claims:
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