Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis
This paper conducts wear tests of rotating shafts and bearings, and collects the wear amount, surface morphology, and friction force signals to study its tribological behaviors using the fractal and chaotic analysis. The rotation shaft surface fractal dimension were calculated to characterize the se...
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| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/13/4/185 |
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| author | Shihui Lang Hua Zhu Xuehai Lian |
| author_facet | Shihui Lang Hua Zhu Xuehai Lian |
| author_sort | Shihui Lang |
| collection | DOAJ |
| description | This paper conducts wear tests of rotating shafts and bearings, and collects the wear amount, surface morphology, and friction force signals to study its tribological behaviors using the fractal and chaotic analysis. The rotation shaft surface fractal dimension were calculated to characterize the self-similarity and smoothness, the signals’ phase trajectories were constructed, and its correlation dimension and phase-point saturation were calculated to reveal the dynamic evolution of the system. The results show that the surface fractal dimension increases from low to high. The phase trajectory fluctuates and then maintains in a finite space, and the correlation dimension increases and stabilizes near the larger value while the phase-point saturation has the opposite evolution. The changes in surface fractal dimension, phase trajectories, correlation dimension, and phase-point saturation are similar to the wear rate, exhibiting a transition from instability to stability, which is more objective and sensitive than traditional representation methods. According to the fractal and chaotic characterization results of the worn surface and friction force signal, the material of CrNiMoN has better friction and wear properties than GCr15. The results reveal the tribological behaviors and wear mechanisms of the rotating shaft and provide guidance for material selection and designing, along with a basis for characterizing the wear status of the rotating shaft of wave glider wing. |
| format | Article |
| id | doaj-art-c8f8346270f441c0b227be36bf3d3f3f |
| institution | OA Journals |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-c8f8346270f441c0b227be36bf3d3f3f2025-08-20T02:28:24ZengMDPI AGLubricants2075-44422025-04-0113418510.3390/lubricants13040185Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic AnalysisShihui Lang0Hua Zhu1Xuehai Lian2School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaChina E-Tech (Ningbo) Maritime Electronics Research Institute Co., Ltd., Ningbo 315040, ChinaThis paper conducts wear tests of rotating shafts and bearings, and collects the wear amount, surface morphology, and friction force signals to study its tribological behaviors using the fractal and chaotic analysis. The rotation shaft surface fractal dimension were calculated to characterize the self-similarity and smoothness, the signals’ phase trajectories were constructed, and its correlation dimension and phase-point saturation were calculated to reveal the dynamic evolution of the system. The results show that the surface fractal dimension increases from low to high. The phase trajectory fluctuates and then maintains in a finite space, and the correlation dimension increases and stabilizes near the larger value while the phase-point saturation has the opposite evolution. The changes in surface fractal dimension, phase trajectories, correlation dimension, and phase-point saturation are similar to the wear rate, exhibiting a transition from instability to stability, which is more objective and sensitive than traditional representation methods. According to the fractal and chaotic characterization results of the worn surface and friction force signal, the material of CrNiMoN has better friction and wear properties than GCr15. The results reveal the tribological behaviors and wear mechanisms of the rotating shaft and provide guidance for material selection and designing, along with a basis for characterizing the wear status of the rotating shaft of wave glider wing.https://www.mdpi.com/2075-4442/13/4/185wave gliderswing rotation shafttribological behaviorsfractal and chaos analysis |
| spellingShingle | Shihui Lang Hua Zhu Xuehai Lian Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis Lubricants wave gliders wing rotation shaft tribological behaviors fractal and chaos analysis |
| title | Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis |
| title_full | Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis |
| title_fullStr | Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis |
| title_full_unstemmed | Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis |
| title_short | Study on the Tribological Behaviors of a Wave Glider’s Wing’s Rotating Shaft Using Fractal and Chaotic Analysis |
| title_sort | study on the tribological behaviors of a wave glider s wing s rotating shaft using fractal and chaotic analysis |
| topic | wave gliders wing rotation shaft tribological behaviors fractal and chaos analysis |
| url | https://www.mdpi.com/2075-4442/13/4/185 |
| work_keys_str_mv | AT shihuilang studyonthetribologicalbehaviorsofawavegliderswingsrotatingshaftusingfractalandchaoticanalysis AT huazhu studyonthetribologicalbehaviorsofawavegliderswingsrotatingshaftusingfractalandchaoticanalysis AT xuehailian studyonthetribologicalbehaviorsofawavegliderswingsrotatingshaftusingfractalandchaoticanalysis |