Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation
A nonlinear dynamics model of the planetary gears-rotor system is established with a developed internal mesh stiffness embedded with ring gear stiffness. The torsional effect of rotor and pivotal parameters from gears including gear backlash， time-varying mesh stiffness and comprehensive transmissio...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2021-09-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.09.022 |
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| _version_ | 1841547322236862464 |
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| author | Lanlan Hou Mingqiang Li Guosheng Wang Lingyun Lai Hao Chen Yuping Huang |
| author_facet | Lanlan Hou Mingqiang Li Guosheng Wang Lingyun Lai Hao Chen Yuping Huang |
| author_sort | Lanlan Hou |
| collection | DOAJ |
| description | A nonlinear dynamics model of the planetary gears-rotor system is established with a developed internal mesh stiffness embedded with ring gear stiffness. The torsional effect of rotor and pivotal parameters from gears including gear backlash， time-varying mesh stiffness and comprehensive transmission error are incorporated. Responses characteristic are analyzed with bifurcation diagrams， the largest Lyapunov exponents （LLE）， Poincaré maps and phase diagrams. The torsional vibration displacement response between gear and rotor is studied， and the influence law of torsional stiffness ratio between rotor shaft and drive shaft is analyzed. It is found that the system exhibits nonlinear characteristic， enters into chaotic motion through quasi-periodic bifurcation and period-doubling bifurcation， threshold values for stiffness ratios to avoid bifurcation and chaos are obtained. The research provides a reference of undesirable torsional behaviors in dynamic designing and vibration controlling for planetary gears-rotor systems in helicopter main reducer transmission. |
| format | Article |
| id | doaj-art-3b7689e4442a43bd8a0e1a74eb2f3470 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2021-09-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-3b7689e4442a43bd8a0e1a74eb2f34702025-01-10T14:47:54ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-09-014514515018848713Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness VariationLanlan HouMingqiang LiGuosheng WangLingyun LaiHao ChenYuping HuangA nonlinear dynamics model of the planetary gears-rotor system is established with a developed internal mesh stiffness embedded with ring gear stiffness. The torsional effect of rotor and pivotal parameters from gears including gear backlash， time-varying mesh stiffness and comprehensive transmission error are incorporated. Responses characteristic are analyzed with bifurcation diagrams， the largest Lyapunov exponents （LLE）， Poincaré maps and phase diagrams. The torsional vibration displacement response between gear and rotor is studied， and the influence law of torsional stiffness ratio between rotor shaft and drive shaft is analyzed. It is found that the system exhibits nonlinear characteristic， enters into chaotic motion through quasi-periodic bifurcation and period-doubling bifurcation， threshold values for stiffness ratios to avoid bifurcation and chaos are obtained. The research provides a reference of undesirable torsional behaviors in dynamic designing and vibration controlling for planetary gears-rotor systems in helicopter main reducer transmission.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.09.022Helicopter main reducerPlanetary gears-rotor systemNonlinear dynamicsBifurcationChaos |
| spellingShingle | Lanlan Hou Mingqiang Li Guosheng Wang Lingyun Lai Hao Chen Yuping Huang Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation Jixie chuandong Helicopter main reducer Planetary gears-rotor system Nonlinear dynamics Bifurcation Chaos |
| title | Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation |
| title_full | Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation |
| title_fullStr | Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation |
| title_full_unstemmed | Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation |
| title_short | Nonlinear Dynamics of Helicopter Planetary Gear-rotor System Caused by Stiffness Variation |
| title_sort | nonlinear dynamics of helicopter planetary gear rotor system caused by stiffness variation |
| topic | Helicopter main reducer Planetary gears-rotor system Nonlinear dynamics Bifurcation Chaos |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.09.022 |
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