Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device
There is a constant need for the safe operation and reliability of antifalling safety device (AFSD) of an elevator. This paper reports an experimental study on rotation speed and catching torque monitoring and fault diagnosis of an antifalling safety device in a construction elevator. Denoising the...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/286781 |
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| _version_ | 1850234954574725120 |
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| author | Guangxiang Yang Hua Liang |
| author_facet | Guangxiang Yang Hua Liang |
| author_sort | Guangxiang Yang |
| collection | DOAJ |
| description | There is a constant need for the safe operation and reliability of antifalling safety device (AFSD) of an elevator. This paper reports an experimental study on rotation speed and catching torque monitoring and fault diagnosis of an antifalling safety device in a construction elevator. Denoising the signal using wavelet transform is presented in this paper. Based on the denoising effects for several types of wavelets, the sym8 wavelet basis, which introduces the high order approximation and an adaptive threshold, is employed for denoising the signal. The experimental result shows a maximum data error reduction of 7.5% is obtained and SNRs (signal-to-noise ratio) of rotation speed and catching torque are improved for 3.9% and 6.4%, respectively. |
| format | Article |
| id | doaj-art-17ca877a80964db69c3041274c1f3620 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-17ca877a80964db69c3041274c1f36202025-08-20T02:02:28ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/286781286781Condition Monitoring and Fault Diagnosis for an Antifalling Safety DeviceGuangxiang Yang0Hua Liang1Chongqing Engineering Laboratory for Detection, Control and Integrated System, Chongqing Technology and Business University, Chongqing 400067, ChinaChongqing Engineering Laboratory for Detection, Control and Integrated System, Chongqing Technology and Business University, Chongqing 400067, ChinaThere is a constant need for the safe operation and reliability of antifalling safety device (AFSD) of an elevator. This paper reports an experimental study on rotation speed and catching torque monitoring and fault diagnosis of an antifalling safety device in a construction elevator. Denoising the signal using wavelet transform is presented in this paper. Based on the denoising effects for several types of wavelets, the sym8 wavelet basis, which introduces the high order approximation and an adaptive threshold, is employed for denoising the signal. The experimental result shows a maximum data error reduction of 7.5% is obtained and SNRs (signal-to-noise ratio) of rotation speed and catching torque are improved for 3.9% and 6.4%, respectively.http://dx.doi.org/10.1155/2015/286781 |
| spellingShingle | Guangxiang Yang Hua Liang Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device Shock and Vibration |
| title | Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device |
| title_full | Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device |
| title_fullStr | Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device |
| title_full_unstemmed | Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device |
| title_short | Condition Monitoring and Fault Diagnosis for an Antifalling Safety Device |
| title_sort | condition monitoring and fault diagnosis for an antifalling safety device |
| url | http://dx.doi.org/10.1155/2015/286781 |
| work_keys_str_mv | AT guangxiangyang conditionmonitoringandfaultdiagnosisforanantifallingsafetydevice AT hualiang conditionmonitoringandfaultdiagnosisforanantifallingsafetydevice |