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Title:
STRUCTURE DEGRADATION JUDGMENT SUPPORT DEVICE AND STRUCTURE DEGRADATION JUDGMENT SUPPORT SYSTEM
Document Type and Number:
Japanese Patent JP2019002859
Kind Code:
A
Abstract:
To provide a structure degradation judgment support device displaying the position of a structure, the position enabling the natural vibration of a high-order vibration mode to be measured.SOLUTION: The structure degradation judgment support device is provided that supports measurement of the natural vibration of a structure, comprising: a table 10 in which the standard and incidental condition of a structure are made to correspond to a position on the structure where the vibration amplitude of natural vibration of each of a plurality of orders of the structure is obtained; a vibration measurement unit 20 measuring the natural vibration of the structure in a time domain; a frequency analysis unit 30 analyzing the frequency of the natural vibration measured by the vibration measurement unit 20 thereby obtaining natural vibration frequency of vibration modes of second and lower-order; and a measurement position determination unit 40 searching the table 10 with the natural vibration frequency of the low-order vibration mode obtained by the frequency analysis unit 30 thereby determining the position on the structure where the natural vibration of the structure is measured.SELECTED DRAWING: Figure 8

Inventors:
MORISAWA FUMIHARU
OTSUKA TAKUYA
OKA SOICHI
Application Number:
JP2017119347A
Publication Date:
January 10, 2019
Filing Date:
June 19, 2017
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G01N17/00; G01H17/00
Attorney, Agent or Firm:
Hidekazu Miyoshi
Rie Kudo