This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The engaging process model of sleeve and teeth ring with a precise, continuous and nonlinear damping impact model in mechanical transmissions
Technical Paper
2017-01-2443
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
During the engaging process of sleeve and teeth ring in mechanical transmissions, their rotational speed and position differences cause multiple engaging ways and trajectories, and casual impacts between them will delay the engaging process and cause a long power off time for a gear shift. In order to reveal the engaging mechanism of the sleeve and the teeth ring, it is essential to build a high-fidelity model to cover all of their engaging ways and capture their speed changes for an impact. In this work, our contribution is that their impact process is modeled as a precise, continuous and nonlinear damping model, and then a hybrid automaton model is built to connect the system dynamics in different mechanical coupling relationships. First, in order to solve the vertical impact force on splined chamfers of sleeve and teeth ring, a numerical solving method for nonlinear damping model is proposed through finding a precise relationship of restitution coefficient, stiffness coefficient and damping coefficient. Second, in order to solve the frictional force on the tangential direction of splined chamfers, the switching condition from static friction to kinetic friction and the frictional force direction with relation to the relative tangential speed of sleeve and teeth ring are determined formally. Third, five motion modes are included in a hybrid automaton model to connect different mechanical coupling relationships in an engaging process: impacting on the up chamfer, impacting on the down chamfer, moving forward, meshing and being engaged. Finally, simulations are carried out to describe the trajectory of the sleeve relative to the teeth ring and the continuous changing of the interactions between the two elements during the engaging process.
Authors
Topic
Citation
Lu, Z., Chen, H., Wang, L., and Tian, G., "The engaging process model of sleeve and teeth ring with a precise, continuous and nonlinear damping impact model in mechanical transmissions," SAE Technical Paper 2017-01-2443, 2017, https://doi.org/10.4271/2017-01-2443.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- Man , Y. , Zhai , Y. , Chen , H. , Zhao , Y. , and Gong , J. 2009 Design and realization of dynamic performance detection test bench for automatic mechanical transmission electric control system In Intelligent Systems and Applications, 2009. ISA 2009. International Workshop on 1 6
- Hofman , T. , and Dai , C. H. 2010 Energy efficiency analysis and comparison of transmission technologies for an electric vehicle In IEEE Vehicle Power & Propulsion Conference 1 6
- Lee , H. D. , Sul , S. K. , Cho , H. S. , and Lee , J. M. 2000 Advanced gear-shifting and clutching strategy for a parallel-hybrid vehicle IEEE Industry Applications Magazine 6 6 26 32
- Zhong , Z. , Kong , G. , Yu , Z. , Chen , X. , Chen , X. , and Xin , X. 2012 Concept evaluation of a novel gear selector for automated manual transmissions Mechanical Systems & Signal Processing 31 8 316 331
- Hoshino , H. Analysis on Synchronization Mechanism of Transmission SAE Technical Paper 1999-01-0734 1999 10.4271/1999-01-0734
- Kent , D. K. C. 2000 Gear shift quality improvement in manual transmissions using dynamic modelling
- Chen H , Tian G Modeling and analysis of engaging process of automated mechanical transmissions[J] Multibody System Dynamics 2016 37 4 1 25
- Duan , C. 2014 Analytical study of a dog clutch inautomatic transmission application 1155 1162
- Rothbart , H. A. Mechanical Design and Systems Handbook McGraw-Hill
- Brach , R. M. 1989 Rigid body collisions Journal of Applied Mechanics 56 1 133 138
- Marhefka , D. W. , and Orin , D. E. 1999 A compliant contact model with nonlinear damping for simulation of robotic systems IEEE Transactions on Systems Man and Cybernetics -Part A Systems and Humans 29 6 566 572
- Goldsmith W , Frasier J T Impact: The Theory and Physical Behavior of Colliding Solids[J] Journal of Applied Mechanics 1961 28 4 639
- Lankarani , H. M. , and Nikravesh , P. E. 1994 Continuous contact force models for impact analysis in multibody systems Nonlinear Dynamics 5 2 193 207
- Hunt , K. H. , and Crossley , F. R. E. 1975 Coefficient of restitution interpreted as damping in vibroimpact Journal of Applied Mechanics 42 2 440 445
- Lankarani , H. M. , and Nikravesh , P. E. 1990 A contact force model with hysteresis damping for impact analysis of multibody systems Journal of Mechanical Design 112 3 369 376
- Hu , S. , and Guo , X. 2015 A dissipative contact force model for impact analysis in multibody dynamics Multibody System Dynamics 35 2 131 151
- Flores , P. , Machado , M. , Silva , M. T. , and Martins , J. M. 2011 On the continuous contact force models for soft materials in multibody dynamics Multibody System Dynamics 25 25 357 375
- Impact , S. Goldsmith The theory and physical behaviour of colliding bodies Edward Arnold London 1960