Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference
For the damage identification of derrick steel structures, traditional methods often require high-order vibration information of structures to identify damage accurately. However, the high-order vibration information of structures is difficult to acquire. Based on the technology of signal feature ex...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/1062949 |
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| _version_ | 1849409220023156736 |
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| author | Dongying Han Shimin Wei Peiming Shi Ying Zhang Kai Gao Nengyuan Tian |
| author_facet | Dongying Han Shimin Wei Peiming Shi Ying Zhang Kai Gao Nengyuan Tian |
| author_sort | Dongying Han |
| collection | DOAJ |
| description | For the damage identification of derrick steel structures, traditional methods often require high-order vibration information of structures to identify damage accurately. However, the high-order vibration information of structures is difficult to acquire. Based on the technology of signal feature extraction, only using the low-order vibration information, taking the right front leg as an example, we analyzed the selection of HHT marginal spectrum amplitude and the calculation process of its curvature in practical application, designed the damage conditions of a derrick steel structure, used the index and intrinsic mode function (IMF) instantaneous energy curvature method to perform the damage simulation calculation and comparison, and verified the effect of identifying the damage location in a noisy environment. The results show that the index can accurately determine the location of the damage element and weak damage element and can be used to qualitatively analyze the damage degree of the element; under the impact load, the noise hardly affects the identification of the damage location. Finally, this method was applied to the ZJ70 derrick steel structure laboratory model and compared with the IMF instantaneous energy curvature method. We verified the feasibility of this method in the damage location simulation experiment. |
| format | Article |
| id | doaj-art-7e65b97dd2004ccb90c83d2040861051 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7e65b97dd2004ccb90c83d20408610512025-08-20T03:35:34ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/10629491062949Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature DifferenceDongying Han0Shimin Wei1Peiming Shi2Ying Zhang3Kai Gao4Nengyuan Tian5School of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, ChinaSchool of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, ChinaSchool of Electrical Engineering, Yanshan University, Qinhuangdao 066004, ChinaSchool of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USASchool of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, ChinaSchool of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, ChinaFor the damage identification of derrick steel structures, traditional methods often require high-order vibration information of structures to identify damage accurately. However, the high-order vibration information of structures is difficult to acquire. Based on the technology of signal feature extraction, only using the low-order vibration information, taking the right front leg as an example, we analyzed the selection of HHT marginal spectrum amplitude and the calculation process of its curvature in practical application, designed the damage conditions of a derrick steel structure, used the index and intrinsic mode function (IMF) instantaneous energy curvature method to perform the damage simulation calculation and comparison, and verified the effect of identifying the damage location in a noisy environment. The results show that the index can accurately determine the location of the damage element and weak damage element and can be used to qualitatively analyze the damage degree of the element; under the impact load, the noise hardly affects the identification of the damage location. Finally, this method was applied to the ZJ70 derrick steel structure laboratory model and compared with the IMF instantaneous energy curvature method. We verified the feasibility of this method in the damage location simulation experiment.http://dx.doi.org/10.1155/2017/1062949 |
| spellingShingle | Dongying Han Shimin Wei Peiming Shi Ying Zhang Kai Gao Nengyuan Tian Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference Shock and Vibration |
| title | Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference |
| title_full | Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference |
| title_fullStr | Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference |
| title_full_unstemmed | Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference |
| title_short | Damage Identification of a Derrick Steel Structure Based on the HHT Marginal Spectrum Amplitude Curvature Difference |
| title_sort | damage identification of a derrick steel structure based on the hht marginal spectrum amplitude curvature difference |
| url | http://dx.doi.org/10.1155/2017/1062949 |
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