Use of Directional Spectra for Detection of Engine Cylinder Power Fault
A diagnostic method, which uses the two-sided directional power spectra of complex-valued engine vibration signals, is presented and tested with four-cylinder compression and spark ignition engines for the diagnosis of cylinder power faults. As spectral estimators, the maximum likelihood and FFT met...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1997-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1997-45-609 |
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| _version_ | 1832562462655774720 |
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| author | Chong-Won Lee Yun-Sik Han Jong-Po Park |
| author_facet | Chong-Won Lee Yun-Sik Han Jong-Po Park |
| author_sort | Chong-Won Lee |
| collection | DOAJ |
| description | A diagnostic method, which uses the two-sided directional power spectra of complex-valued engine vibration signals, is presented and tested with four-cylinder compression and spark ignition engines for the diagnosis of cylinder power faults. As spectral estimators, the maximum likelihood and FFT methods are compared, and the multi-layer neural network is employed for pattern recognition. Experimental results show that the success rate for identifying the misfired cylinder is much higher with the use of two-sided directional power spectra than conventional one-sided power spectra. |
| format | Article |
| id | doaj-art-3e8124a05b864b66bc923e0402e2ae7f |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1997-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3e8124a05b864b66bc923e0402e2ae7f2025-02-03T01:22:34ZengWileyShock and Vibration1070-96221875-92031997-01-0145-639140110.3233/SAV-1997-45-609Use of Directional Spectra for Detection of Engine Cylinder Power FaultChong-Won Lee0Yun-Sik Han1Jong-Po Park2Center for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Taejon 305-701, KoreaCenter for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Taejon 305-701, KoreaVibration Research Team, Research and Development Center, Korea Heavy Industries and Construction Co., Ltd., P.O. Box 77, Changwon 641-792, KoreaA diagnostic method, which uses the two-sided directional power spectra of complex-valued engine vibration signals, is presented and tested with four-cylinder compression and spark ignition engines for the diagnosis of cylinder power faults. As spectral estimators, the maximum likelihood and FFT methods are compared, and the multi-layer neural network is employed for pattern recognition. Experimental results show that the success rate for identifying the misfired cylinder is much higher with the use of two-sided directional power spectra than conventional one-sided power spectra.http://dx.doi.org/10.3233/SAV-1997-45-609 |
| spellingShingle | Chong-Won Lee Yun-Sik Han Jong-Po Park Use of Directional Spectra for Detection of Engine Cylinder Power Fault Shock and Vibration |
| title | Use of Directional Spectra for Detection of Engine Cylinder Power Fault |
| title_full | Use of Directional Spectra for Detection of Engine Cylinder Power Fault |
| title_fullStr | Use of Directional Spectra for Detection of Engine Cylinder Power Fault |
| title_full_unstemmed | Use of Directional Spectra for Detection of Engine Cylinder Power Fault |
| title_short | Use of Directional Spectra for Detection of Engine Cylinder Power Fault |
| title_sort | use of directional spectra for detection of engine cylinder power fault |
| url | http://dx.doi.org/10.3233/SAV-1997-45-609 |
| work_keys_str_mv | AT chongwonlee useofdirectionalspectrafordetectionofenginecylinderpowerfault AT yunsikhan useofdirectionalspectrafordetectionofenginecylinderpowerfault AT jongpopark useofdirectionalspectrafordetectionofenginecylinderpowerfault |