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A Study on Durability of Bonded Piston Seals Considering Forming Process
Technical Paper
2013-01-1367
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Bonded piston seals (BPSs) which consist of metal ring and rubber lips are used as hydraulic pistons for Automatic Transmission (AT) or Continuously Variable Transmission (CVT). While engaging clutches, BPSs preserve the hydraulic pressure, therefore it is necessary to endure number of cyclic pressure through the life. This paper describes a reliable design method of BPSs with taking account of the influence of residual stress on the fatigue limit of the metal ring. A new plastic-elastic analysis model considering Bauschinger effect is applied in order to estimate the residual stress, which generates due to metal forming process. Validation for calculated residual stress is done by X-ray diffract meter. A proofed BPS design calculated with this new FEM model shows longer fatigue life than conventional design.
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Citation
Takao, Y. and Takeno, K., "A Study on Durability of Bonded Piston Seals Considering Forming Process," SAE Technical Paper 2013-01-1367, 2013, https://doi.org/10.4271/2013-01-1367.Also In
References
- Komiya , E. , Yomogida , M. , Kanzaki , Y. , and Nishina , H. Development of Bonded Piston Seals SAE Technical Paper 2001-01-0688 2001 10.4271/2001-01-0688
- Hasegawa , S. , Ohmae , K. Technical Trends of Bonded Piston Seals Koyo Engineering Journal 168 2005 20 24
- Obata , H. , Hagihara , S. , Hosokawa , A. , Hiraki , H. and Nagaoka , H. Seals for Automatic Transmissions Mitsubishi Cable Industries review 95 1999 73 80
- Yakou , T. , Hasegawa , T Present State of Research on the Bauschinger Effect The Iron and Steel Institute of Japan 70 1987 1551 1558
- Suresh , S Fatigue of Materials(2ND) Cambridge Univ. Press 1998 97 101
- Yoshida , F. , Uemori , T A model of large-strain cyclic plasticity and its application to springback simulation International Journal of Mechanical Science 45 2003 1687 1702