Fatigue Analysis for Shaft of Inland River Ship Under Ice Load
Inland river ships navigating in an ice area cannot avoid contact between the propeller and ice block. In addition to ensuring the safety of propeller blades, the fatigue strength of the propulsion shaft system under ice load excitation must also be considered. This paper first studies how to calcul...
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| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/131 |
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| author | Kai Yang Guoqing Feng |
| author_facet | Kai Yang Guoqing Feng |
| author_sort | Kai Yang |
| collection | DOAJ |
| description | Inland river ships navigating in an ice area cannot avoid contact between the propeller and ice block. In addition to ensuring the safety of propeller blades, the fatigue strength of the propulsion shaft system under ice load excitation must also be considered. This paper first studies how to calculate the natural frequency of free torsional vibration of the system, then uses Newmark integral programing to calculate the maximum torsional stress of shaft system under ice load at resonance speed. Low cycle stress and high cycle stress are studied according to fatigue analysis theory. The method of determining S–N curve and ice load stress spectrum is given and the cumulative damage ratio is calculated based on Palmgren–Miner linear cumulative damage theory. Finally, taking a real inland river vessel propulsion shaft system as an example, the fatigue strength of the shaft system under different working conditions of ice load excitation is studied. Therefore, this study has practical significance and engineering application value in conducting fatigue research on the propulsion shaft system of an inland waterway vessel sailing in an ice area. |
| format | Article |
| id | doaj-art-b0697a660a714f10845cb6cf063ebab7 |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-b0697a660a714f10845cb6cf063ebab72025-01-24T13:36:57ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-0113113110.3390/jmse13010131Fatigue Analysis for Shaft of Inland River Ship Under Ice LoadKai Yang0Guoqing Feng1College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, ChinaInland river ships navigating in an ice area cannot avoid contact between the propeller and ice block. In addition to ensuring the safety of propeller blades, the fatigue strength of the propulsion shaft system under ice load excitation must also be considered. This paper first studies how to calculate the natural frequency of free torsional vibration of the system, then uses Newmark integral programing to calculate the maximum torsional stress of shaft system under ice load at resonance speed. Low cycle stress and high cycle stress are studied according to fatigue analysis theory. The method of determining S–N curve and ice load stress spectrum is given and the cumulative damage ratio is calculated based on Palmgren–Miner linear cumulative damage theory. Finally, taking a real inland river vessel propulsion shaft system as an example, the fatigue strength of the shaft system under different working conditions of ice load excitation is studied. Therefore, this study has practical significance and engineering application value in conducting fatigue research on the propulsion shaft system of an inland waterway vessel sailing in an ice area.https://www.mdpi.com/2077-1312/13/1/131ice loadpropulsion shaftfatigue strengthtorsional stresscumulative damage ratio |
| spellingShingle | Kai Yang Guoqing Feng Fatigue Analysis for Shaft of Inland River Ship Under Ice Load Journal of Marine Science and Engineering ice load propulsion shaft fatigue strength torsional stress cumulative damage ratio |
| title | Fatigue Analysis for Shaft of Inland River Ship Under Ice Load |
| title_full | Fatigue Analysis for Shaft of Inland River Ship Under Ice Load |
| title_fullStr | Fatigue Analysis for Shaft of Inland River Ship Under Ice Load |
| title_full_unstemmed | Fatigue Analysis for Shaft of Inland River Ship Under Ice Load |
| title_short | Fatigue Analysis for Shaft of Inland River Ship Under Ice Load |
| title_sort | fatigue analysis for shaft of inland river ship under ice load |
| topic | ice load propulsion shaft fatigue strength torsional stress cumulative damage ratio |
| url | https://www.mdpi.com/2077-1312/13/1/131 |
| work_keys_str_mv | AT kaiyang fatigueanalysisforshaftofinlandrivershipundericeload AT guoqingfeng fatigueanalysisforshaftofinlandrivershipundericeload |