Effect of Bearing Support Parameters on the Radial and Angular Deformation of Rotor Shaft Gear Based on CRDRS Support Configuration with Intermediate Bearing Support
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| Publicado en: | Machines vol. 13, no. 6 (2025), p. 513-537 |
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MDPI AG
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| Acceso en línea: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 001 | 3223924765 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2075-1702 | ||
| 024 | 7 | |a 10.3390/machines13060513 |2 doi | |
| 035 | |a 3223924765 | ||
| 045 | 2 | |b d20250101 |b d20251231 | |
| 084 | |a 231531 |2 nlm | ||
| 100 | 1 | |a Yuan Xiaojie |u AECC (Aero Engine Corporation of China), Hunan Aviation Powerplant Research Institute, Zhuzhou 412000, China | |
| 245 | 1 | |a Effect of Bearing Support Parameters on the Radial and Angular Deformation of Rotor Shaft Gear Based on CRDRS Support Configuration with Intermediate Bearing Support | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a The rotor shaft is a critical component responsible for transmitting engine power to the helicopter’s rotor. Deformation of the rotor shaft can affect the meshing performance of the output stage gears in the main gearbox, thereby affecting load transfer efficiency. By adjusting the support parameters of the rotor shaft, deformation at critical positions can be minimized, and the meshing performance of the output stage gears can be improved. Therefore, it is imperative to investigate the influence of rotor shaft support parameters on the deformation of the rotor shaft. This paper takes coaxial reversing dual rotor shaft (CRDRS) support configuration with intermediate bearing support as object. Utilizing Timoshenko beam theory, a rotor shaft model is developed, and static equations are derived based on the Lagrange equations. The relaxation iteration method is employed for a two-level iterative solution, and the effects of bearing support positions and support stiffness on the radial and angular deformations of rotor shaft gears under two support configurations, simply supported outer rotor shaft–cantilever-supported inner rotor shaft, and simply supported outer rotor shaft–simply supported inner rotor shaft, are analyzed. The findings indicate that the radial and angular deformations of gear s1 are consistently smaller than those of gear s2 in the CRDRS system. This difference is particularly pronounced in the selection of support configuration. The bearing support position plays a dominant role in gear deformation, exhibiting a monotonic linear relationship. In contrast, although adjustments in bearing support stiffness also follow a linear pattern in influencing deformation, their impact is relatively limited. Overall, optimal design should prioritize the adjustment of bearing positions, particularly the layout of b3 relative to s2, while complementing it with coordinated modifications to the stiffness of bearings b2, b3, and b4 to effectively enhance the static characteristics of the dual-rotor shaft gears. | |
| 653 | |a Gears | ||
| 653 | |a Titanium alloys | ||
| 653 | |a Investigations | ||
| 653 | |a Beam theory (structures) | ||
| 653 | |a Bearings | ||
| 653 | |a Iterative methods | ||
| 653 | |a Stiffness | ||
| 653 | |a Rotors | ||
| 653 | |a Deformation effects | ||
| 653 | |a Euler-Lagrange equation | ||
| 653 | |a Static characteristics | ||
| 653 | |a Critical components | ||
| 653 | |a Parameters | ||
| 653 | |a Load transfer | ||
| 653 | |a Iterative solution | ||
| 653 | |a Helicopter engines | ||
| 653 | |a Configurations | ||
| 653 | |a Meshing | ||
| 653 | |a Timoshenko beams | ||
| 700 | 1 | |a Che Xiaoyu |u National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; rpzhu_nuaa@163.com (R.Z.); meewfchen@nuaa.edu.cn (W.C.) | |
| 700 | 1 | |a Zhu Rupeng |u National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; rpzhu_nuaa@163.com (R.Z.); meewfchen@nuaa.edu.cn (W.C.) | |
| 700 | 1 | |a Chen, Weifang |u National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; rpzhu_nuaa@163.com (R.Z.); meewfchen@nuaa.edu.cn (W.C.) | |
| 773 | 0 | |t Machines |g vol. 13, no. 6 (2025), p. 513-537 | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3223924765/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3223924765/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3223924765/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |