Calculation of time-varying backlash for an involute spur gear pair. (October 2020)
- Record Type:
- Journal Article
- Title:
- Calculation of time-varying backlash for an involute spur gear pair. (October 2020)
- Main Title:
- Calculation of time-varying backlash for an involute spur gear pair
- Authors:
- Shi, Jian-Fei
Gou, Xiang-Feng
Zhu, Ling-Yun - Abstract:
- Highlights: Establishing a dynamic time-varying backlash for an involute spur gear pair system. Elastic deformations, thermal deformations and film thickness deformation of the meshing point are included in this model. Dynamic time-varying backlash jumps at the shift of single-tooth and double-tooth pairs. Effects of rotation speed, torque load and tooth surface temperature on the time-varying backlash are analyzed. Abstract: Backlash plays a significant role in gear design and geared dynamics analysis. This study aims to establish a model of the time-varying backlash for a standard involute spur gear pair. The elastic deformations, thermal deformations and film thickness deformation at the meshing point are considered in this model. Asperity and fluid loads are included in film thickness. A time-varying backlash model with contact ratio is developed according to the force analysis at the meshing point. The contributions and effects of the various deformations on the backlash are analyzed. The effects of rotation speed, torque load and tooth surface temperature on the time-varying backlash are studied. Results show that the influence of various parameters on the backlash cannot be ignored. The time-varying backlash is less affected by elastic deformation and oil film thickness deformation, and is greatly affected by the thermal deformation. The time-varying backlash increases with the increase of torque load and the decreases of rotation speed and tooth surface temperature.Highlights: Establishing a dynamic time-varying backlash for an involute spur gear pair system. Elastic deformations, thermal deformations and film thickness deformation of the meshing point are included in this model. Dynamic time-varying backlash jumps at the shift of single-tooth and double-tooth pairs. Effects of rotation speed, torque load and tooth surface temperature on the time-varying backlash are analyzed. Abstract: Backlash plays a significant role in gear design and geared dynamics analysis. This study aims to establish a model of the time-varying backlash for a standard involute spur gear pair. The elastic deformations, thermal deformations and film thickness deformation at the meshing point are considered in this model. Asperity and fluid loads are included in film thickness. A time-varying backlash model with contact ratio is developed according to the force analysis at the meshing point. The contributions and effects of the various deformations on the backlash are analyzed. The effects of rotation speed, torque load and tooth surface temperature on the time-varying backlash are studied. Results show that the influence of various parameters on the backlash cannot be ignored. The time-varying backlash is less affected by elastic deformation and oil film thickness deformation, and is greatly affected by the thermal deformation. The time-varying backlash increases with the increase of torque load and the decreases of rotation speed and tooth surface temperature. Tooth surface temperature is validated experimentally due to its importance in the established model. … (more)
- Is Part Of:
- Mechanism and machine theory. Volume 152(2020)
- Journal:
- Mechanism and machine theory
- Issue:
- Volume 152(2020)
- Issue Display:
- Volume 152, Issue 2020 (2020)
- Year:
- 2020
- Volume:
- 152
- Issue:
- 2020
- Issue Sort Value:
- 2020-0152-2020-0000
- Page Start:
- Page End:
- Publication Date:
- 2020-10
- Subjects:
- Gear system -- Time-varying backlash -- Elastic deformation -- Thermal deformation -- Film thickness deformation
Machine theory -- Periodicals
Machinery -- Periodicals
Machines -- Périodiques
Génie mécanique -- Périodiques
Machine theory
Machinery
Periodicals
621.81 - Journal URLs:
- http://www.sciencedirect.com/science/journal/0094114X ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.mechmachtheory.2020.103956 ↗
- Languages:
- English
- ISSNs:
- 0094-114X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5424.570800
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 13353.xml