Effects of Silicone Oil on Stiffness and Damping of Rubber-Silicone Oil Combined Damper for Reducing Shaft Vibration
| Autor: | Rupeng Zhu, Cheng Duan, Weifang Chen, Miaomiao Li, Xiong Lu, Chuan-guo Wu, Jingyu Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
General Computer Science Loss factor silicone oil 0211 other engineering and technologies 02 engineering and technology Silicone rubber Damper law.invention stiffness chemistry.chemical_compound law 021105 building & construction medicine General Materials Science damping Bearing (mechanical) business.industry General Engineering Stiffness Structural engineering 021001 nanoscience & nanotechnology Silicone oil Vibration chemistry Drive shaft Rubber-silicone oil combined damper lcsh:Electrical engineering. Electronics. Nuclear engineering medicine.symptom 0210 nano-technology business lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 8, Pp 218554-218564 (2020) |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/access.2020.3041359 |
| Popis: | The helicopter tail drive shaft system is a typical multi-point supported drive shaft system, with a long span that can lead to serious vibration problems. Shaft vibration can be effectively reduced by installing a rubber-silicone oil combined damper between the bearing and bearing pedestal at the support point along the tail drive shaft. Stiffness and damping characteristics of the rubber-silicone oil combined damper are important factors affecting shaft vibration. In this study, the effects of silicone oil on the stiffness and damping of rubber-silicone oil combined damper were analyzed through simulations. The simulation method was experimentally verified and factors influencing the static stiffness, dynamic stiffness, and damping characteristics of the damper were investigated. In addition, the influence of damper dimensions and external excitation frequency on the stiffness and loss factor of the damping ring in the presence and absence of silicone oil were examined. The presence of silicone oil increases the difference between the dynamic stiffness and the loss factor. As the viscosity of the silicone oil increases, the static stiffness, dynamic stiffness, and loss factor of rubber-silicone oil combined dampers increase. The results have important guiding significance in the design of dampers for shafting systems. |
| Databáze: | OpenAIRE |
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