A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PC SLEEPER DETERIORATION DETERMINATION SYSTEM, PC SLEEPER DETERIORATION DETERMINATION METHOD AND PROGRAM
PROBLEM TO BE SOLVED: To provide a PC sleeper deterioration determination system in which a deterioration situation of a PC sleeper can be grasped more easily.SOLUTION: A PC sleeper deterioration determination system comprises: a microphone for acquiring sound generated by the vibration to the PC sleeper; a natural frequency detection unit for detecting natural frequency of the third flexure mode of the PC sleeper on the basis of the sound acquired by the microphone; and a deterioration determination unit for determining that the PC sleeper is deteriorated when a determination is made that the natural frequency of the third flexure mode detected by the natural frequency detection unit is a lower frequency than a predetermined condition.SELECTED DRAWING: Figure 2
【課題】ＰＣまくらぎの劣化状況をより容易に把握できるようにする。【解決手段】ＰＣまくらぎ劣化判定システムが、ＰＣまくらぎへの加振により生じる音を取得するマイクと、前記マイクが取得した音に基づいて、前記ＰＣまくらぎのたわみ３次モードの固有振動数を検出する固有振動数検出部と、前記固有振動数検出部が検出した前記たわみ３次モードの固有振動数が所定条件よりも低周波であると判定すると、前記ＰＣまくらぎが劣化していると判定する劣化判定部と、を具備する。【選択図】図２
PC SLEEPER DETERIORATION DETERMINATION SYSTEM, PC SLEEPER DETERIORATION DETERMINATION METHOD AND PROGRAM
PROBLEM TO BE SOLVED: To provide a PC sleeper deterioration determination system in which a deterioration situation of a PC sleeper can be grasped more easily.SOLUTION: A PC sleeper deterioration determination system comprises: a microphone for acquiring sound generated by the vibration to the PC sleeper; a natural frequency detection unit for detecting natural frequency of the third flexure mode of the PC sleeper on the basis of the sound acquired by the microphone; and a deterioration determination unit for determining that the PC sleeper is deteriorated when a determination is made that the natural frequency of the third flexure mode detected by the natural frequency detection unit is a lower frequency than a predetermined condition.SELECTED DRAWING: Figure 2
【課題】ＰＣまくらぎの劣化状況をより容易に把握できるようにする。【解決手段】ＰＣまくらぎ劣化判定システムが、ＰＣまくらぎへの加振により生じる音を取得するマイクと、前記マイクが取得した音に基づいて、前記ＰＣまくらぎのたわみ３次モードの固有振動数を検出する固有振動数検出部と、前記固有振動数検出部が検出した前記たわみ３次モードの固有振動数が所定条件よりも低周波であると判定すると、前記ＰＣまくらぎが劣化していると判定する劣化判定部と、を具備する。【選択図】図２
PC SLEEPER DETERIORATION DETERMINATION SYSTEM, PC SLEEPER DETERIORATION DETERMINATION METHOD AND PROGRAM
ＰＣまくらぎ劣化判定システム、ＰＣまくらぎ劣化判定方法およびプログラム
MATSUOKA KOTA (author) / WATANABE TSUTOMU (author)
2016-05-23
Patent
Electronic Resource
Japanese
SLEEPER, SLEEPER LAYING METHOD, AND SLEEPER MANUFACTURING METHOD
| European Patent Office | 2017
SLEEPER REPAIR METHOD, SLEEPER REPAIR STRUCTURE AND SLEEPER
| European Patent Office | 2021