Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit
The dual-cylinder parallel balance oil circuit is an important heavy-duty support mechanism. Driven by the automation and unmanned trend of equipment in various industries, the internal leakage analysis and corresponding fault diagnosis for this mechanism are increasingly being valued. To solve this...
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| author | Haiqing Yao Xuan Wu |
| author_facet | Haiqing Yao Xuan Wu |
| author_sort | Haiqing Yao |
| collection | DOAJ |
| description | The dual-cylinder parallel balance oil circuit is an important heavy-duty support mechanism. Driven by the automation and unmanned trend of equipment in various industries, the internal leakage analysis and corresponding fault diagnosis for this mechanism are increasingly being valued. To solve this problem, verified by numerous simulation analyses and theoretical deduction, the pressure signal in the rodless chamber during the pressure maintenance stage was used innovatively to construct the fault features of the internal leakage, which is common and low-cost to be obtained. Then, the wavelet packet decomposition was used to extract three energy features and two time-domain features. Finally, an internal leakage diagnosis was performed based on the five features extracted from the experimental data, and the accuracy and robustness of the proposed five features were verified, which indicated that the proposed fault features and diagnosis method are practical in engineering. |
| format | Article |
| id | doaj-art-1d01a775e3ec4410b9e48f531cf30250 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-1d01a775e3ec4410b9e48f531cf302502025-01-24T13:21:32ZengMDPI AGApplied Sciences2076-34172025-01-0115297210.3390/app15020972Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil CircuitHaiqing Yao0Xuan Wu1Institute of Logistics Science and Engineering, Shanghai Maritime University, Shanghai 201306, ChinaInstitute of Logistics Science and Engineering, Shanghai Maritime University, Shanghai 201306, ChinaThe dual-cylinder parallel balance oil circuit is an important heavy-duty support mechanism. Driven by the automation and unmanned trend of equipment in various industries, the internal leakage analysis and corresponding fault diagnosis for this mechanism are increasingly being valued. To solve this problem, verified by numerous simulation analyses and theoretical deduction, the pressure signal in the rodless chamber during the pressure maintenance stage was used innovatively to construct the fault features of the internal leakage, which is common and low-cost to be obtained. Then, the wavelet packet decomposition was used to extract three energy features and two time-domain features. Finally, an internal leakage diagnosis was performed based on the five features extracted from the experimental data, and the accuracy and robustness of the proposed five features were verified, which indicated that the proposed fault features and diagnosis method are practical in engineering.https://www.mdpi.com/2076-3417/15/2/972dual-cylinder parallel balance oil circuitinternal leakagepressure maintenance stagewavelet packet decompositionfault diagnosis |
| spellingShingle | Haiqing Yao Xuan Wu Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit Applied Sciences dual-cylinder parallel balance oil circuit internal leakage pressure maintenance stage wavelet packet decomposition fault diagnosis |
| title | Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit |
| title_full | Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit |
| title_fullStr | Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit |
| title_full_unstemmed | Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit |
| title_short | Feature Analysis and Fault Diagnosis of Internal Leakage in Dual-Cylinder Parallel Balance Oil Circuit |
| title_sort | feature analysis and fault diagnosis of internal leakage in dual cylinder parallel balance oil circuit |
| topic | dual-cylinder parallel balance oil circuit internal leakage pressure maintenance stage wavelet packet decomposition fault diagnosis |
| url | https://www.mdpi.com/2076-3417/15/2/972 |
| work_keys_str_mv | AT haiqingyao featureanalysisandfaultdiagnosisofinternalleakageindualcylinderparallelbalanceoilcircuit AT xuanwu featureanalysisandfaultdiagnosisofinternalleakageindualcylinderparallelbalanceoilcircuit |