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Patent Searching and Data


Title:
ESTIMATING DEVICE, ESTIMATING METHOD, AND PROGRAM STORING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/093294
Kind Code:
A1
Abstract:
In order to provide an estimating device and the like capable of easily estimating the strength of a pipe, this estimating device is provided with a frequency response calculating unit, a pipe rigidity variable estimating unit, and a strength estimating unit. The frequency response calculating unit calculates a frequency response function of the pipe on the basis of excitation force data representing an excitation force when the pipe is excited, and response data obtained by measuring vibrations propagating through the pipe. The pipe rigidity variable estimating unit estimates a parameter relating to the rigidity of the pipe on the basis of a frequency response function model, which is a model representing the frequency response of the pipe, and the frequency response function. The strength estimating unit estimates the strength of the pipe on the basis of a relationship between the parameter and the strength of the pipe.

Inventors:
INOUE HIROFUMI (JP)
TAKATA SOICHIRO (JP)
SHINODA SHIGEKI (JP)
KIKUCHI KATSUMI (JP)
Application Number:
PCT/JP2018/041089
Publication Date:
May 16, 2019
Filing Date:
November 06, 2018
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
G01M7/08
Domestic Patent References:
WO2016194331A12016-12-08
WO2016152143A12016-09-29
Foreign References:
JP2007147634A2007-06-14
JPH09257634A1997-10-03
JP2012118047A2012-06-21
JP2017215729A2017-12-07
Other References:
See also references of EP 3708992A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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