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US 10,883,919 B2Granted
Structure evaluation system and structure evaluation method
AssigneesKabushiki Kaisha Toshiba, Kyoto University
InventorsHidefumi Takamine, Kazuo Watabe, Tomoki Shiotani, Takahiro Nishida
Life of this patent
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Abstract
According to one embodiment, a structure evaluation system includes an impact imparting unit, a sensor, and a structure evaluation device. The impact imparting unit applies impacts to a structure. The impact imparting unit applies the impacts at a frequency equal to or less than a frequency determined in accordance with an intensity at which the impacts are imparted. The sensor detects elastic waves. The structure evaluation device evaluates a deterioration state of the structure on the basis of the detected elastic waves.
Claims13
A structure evaluation system comprising:
- an impact imparting unit configured to apply impacts to a structure;
- a plurality of sensors configured to detect elastic waves;
- and
- a structure evaluation device configured to evaluate a deterioration state of the structure based on the detected elastic waves,
- wherein the impact imparting unit applies the impacts at a first frequency equal to or less than a second frequency determined in accordance with an intensity at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
2 more elements
A structure evaluation system comprising:
- an impact imparting unit configured to apply impacts to a structure;
- a plurality of sensors configured to detect elastic waves;
- and
- a structure evaluation device configured to evaluate a deterioration state of the structure based on the detected elastic waves,
- wherein the impact imparting unit applies the impacts at a first intensity equal to or less than a second intensity determined in accordance with a frequency at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
2 more elements
A structure evaluation system comprising:
- an impact imparting unit configured to apply impacts that include at least a first impact and a second impact to a structure;
- a plurality of sensors configured to detect elastic waves;
- and
- a structure evaluation device configured to evaluate a deterioration state of the structure based on the detected elastic waves,
- wherein the impact imparting unit applies the second impact to a position spaced a predetermined distance from at least one of the plurality of sensors that detects elastic waves caused by the first impact,
- wherein the impact imparting unit applies the first impact and the second impact at a first intensity or a first frequency equal to or less than a second intensity or a second frequency determined based on an arrangement position of the plurality of sensors arranged in the structure and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
3 more elements
A structure evaluation method comprising:
- giving impacts to a structure;
- and
- evaluating a deterioration state of the structure based on elastic waves detected by a plurality of sensors that detect elastic waves,
- wherein, the impacts to the structure are applied at a first frequency equal to or less than a second frequency determined in accordance with an intensity at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
1 more element
A structure evaluation method comprising:
- giving impacts to a structure;
- and
- evaluating a deterioration state of the structure based on elastic waves detected by a plurality of sensors that detect elastic waves,
- wherein, the impacts to the structure are applied at a first intensity equal to or less than a second intensity determined in accordance with a frequency at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
1 more element
A structure evaluation method comprising:
- giving impacts that include at least a first impact and a second impact to a structure;
- and
- evaluating a deterioration state of the structure based on elastic waves detected by a plurality of sensors that detect elastic waves,
- wherein the giving impacts includes applying the second impact to a position spaced a predetermined distance from at least one of the plurality of sensors that detects elastic waves caused by the first impact, and
- wherein the giving impacts includes applying the impacts at a first intensity or a first frequency equal to or less than a second intensity or a second frequency determined based on an arrangement position of the plurality of sensors arranged in the structure and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
2 more elements
An impact imparting apparatus used for evaluation of a structure using a plurality of sensors that detect elastic waves, the impact imparting apparatus comprising:
- an impact imparting unit configured to apply impacts to the structure to generate the elastic waves;
- and
- wherein the impact imparting unit applies the impacts at a first frequency equal to or less than a second frequency determined in accordance with an intensity at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
An impact imparting apparatus used for evaluation of a structure using a plurality of sensors that detect elastic waves, the impact imparting apparatus comprising:
- an impact imparting unit configured to apply impacts to the structure to generate the elastic waves;
- and
- wherein the impact imparting unit applies the impacts at a first intensity equal to or less than a second intensity determined in accordance with a frequency at which the impacts are imparted and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
An impact imparting apparatus used for evaluation of a structure using a plurality of sensors that detect elastic waves, the impact imparting apparatus comprising:
- an impact imparting unit configured to apply impacts to the structure to generate the elastic waves;
- and
- wherein the impact imparting unit applies a second impact to a position spaced a predetermined distance from at least one of the plurality of sensors that detects elastic waves caused by a first impact, and
- wherein the impact imparting unit applies the first impact and the second impact at a first intensity or a first frequency equal to or less than a second intensity or a second frequency determined based on an arrangement position of the plurality of sensors arranged in the structure and acquisition frequency of data, the acquisition frequency of data being obtained by multiplying a first curve representing a frequency of impact impartation and a second curve representing a proportion of separable elastic waves.
1 more element
Dependencies are inferred from the claim text.