DETECTION DEVICE, DETECTION METHOD, AND PROGRAM

• Main Authors: KITAGAWA SHINJI, YAO HIRONOBU, SHINODA MASANORI, KIM CHUL-WOO
• Format: Patent
• Language: English; Japanese
• Published: 15.12.2022
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

To provide a detection device that has a wide range of application, while maintaining the accuracy of estimating a characteristic frequency.SOLUTION: There is provided a detection device comprising: a data acquisition unit that acquires measurement data from a target structure; an index calculation unit that analyzes vibration characteristics of the target structure based on the measurement data to calculate a diagnostic index related to the soundness of the target structure; a diagnosis unit that diagnoses the soundness of the target structure based on the diagnostic index; and an output unit that outputs a result of diagnosis of the soundness. There is provided a detection method for detecting the soundness of the target structure by using the detection device, the detection method including the steps of: acquiring measurement data from the target structure; analyzing the vibration characteristics of the target structure based on the measurement data to calculate the diagnostic index related to the soundness of the target structure; diagnosing the soundness of the target structure based on the diagnostic index; and outputting the result of diagnosis of the soundness.SELECTED DRAWING: Figure 1 【課題】固有振動数の推定精度を維持しつつ，適用範囲の広い検知装置を提供する。【解決手段】対象構造物からの計測データを取得するデータ取得部と，計測データに基づいて対象構造物の振動特性を解析して，対象構造物の健全性に関する診断指標を算出する指標算出部と，診断指標に基づいて対象構造物の健全性を診断する診断部と，健全性の診断結果を出力する出力部とを備える検知装置を提供する。検知装置を用いて，対象構造物の健全性を検知するための検知方法であって，対象構造物からの計測データを取得する段階と，計測データに基づいて対象構造物の振動特性を解析して，対象構造物の健全性に関する診断指標を算出する段階と，診断指標に基づいて対象構造物の健全性を診断する段階と，健全性の診断結果を出力する段階とを備える検知方法を提供する。【選択図】図１