Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition

Satoshi Watanabe; Ryosuke Otani; Shun Kunimoto; Yoshinori Hara; Akinori Furukawa; Takeshi Yamaguchi

doi:10.1115/FEDSM2012-72418

Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition

Satoshi Watanabe, Ryosuke Otani, Shun Kunimoto, Yoshinori Hara, Akinori Furukawa, Takeshi Yamaguchi

Fluids Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

20 Citations (Scopus)

Abstract

Cavitation behaviors in an automotive torque converter at pump speed of 600, 700 and 800 min^-1 at the stall condition are investigated by means of the transparent model. At the same time, the influences of cavitation on mechanical vibration are studied. As a result, at the onset of cavitation, the longitudinal corner vortex cavitation is formed at the corner between outer wall and either suction or pressure surface of stator blades. After the further decrease of charge pressure, the cavitation bubbles are observed in the flow separation region formed at the leading edge on the suction surface of stator blades. Vibration spectrum peaks are found in the wide range of frequency, which increase with the development of cavitation but then decrease with its excessive development. Discussions are made for higher and lower frequency ranges separately to understand the relation between mechanical vibrations and cavitation.

Original language	English
Title of host publication	ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012
Pages	535-541
Number of pages	7
Volume	1
Edition	PARTS A AND B
DOIs	https://doi.org/10.1115/FEDSM2012-72418
Publication status	Published - Dec 1 2012
Event	ASME 2012 Fluids Engineering Division Summer Meeting, FEDSM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and M, FEDSM 2012 - Rio Grande, Puerto Rico Duration: Jul 8 2012 → Jul 12 2012

Other

Other	ASME 2012 Fluids Engineering Division Summer Meeting, FEDSM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and M, FEDSM 2012
Country/Territory	Puerto Rico
City	Rio Grande
Period	7/8/12 → 7/12/12

All Science Journal Classification (ASJC) codes

Mechanical Engineering

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10.1115/FEDSM2012-72418

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Watanabe, S., Otani, R., Kunimoto, S., Hara, Y., Furukawa, A., & Yamaguchi, T. (2012). Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition. In ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012 (PARTS A AND B ed., Vol. 1, pp. 535-541) https://doi.org/10.1115/FEDSM2012-72418

Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition. / Watanabe, Satoshi; Otani, Ryosuke; Kunimoto, Shun et al.

ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012. Vol. 1 PARTS A AND B. ed. 2012. p. 535-541.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Watanabe, S, Otani, R, Kunimoto, S, Hara, Y, Furukawa, A & Yamaguchi, T 2012, Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition. in ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012. PARTS A AND B edn, vol. 1, pp. 535-541, ASME 2012 Fluids Engineering Division Summer Meeting, FEDSM 2012 Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and M, FEDSM 2012, Rio Grande, Puerto Rico, 7/8/12. https://doi.org/10.1115/FEDSM2012-72418

Watanabe S, Otani R, Kunimoto S, Hara Y, Furukawa A, Yamaguchi T. Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition. In ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012. PARTS A AND B ed. Vol. 1. 2012. p. 535-541 https://doi.org/10.1115/FEDSM2012-72418

Watanabe, Satoshi ; Otani, Ryosuke ; Kunimoto, Shun et al. / Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition. ASME 2012 Fluids Engineering Division Summer Meeting Collocated with the ASME 2012 Heat Transfer Summer Conf. and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels, and M, FEDSM 2012. Vol. 1 PARTS A AND B. ed. 2012. pp. 535-541

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abstract = "Cavitation behaviors in an automotive torque converter at pump speed of 600, 700 and 800 min-1 at the stall condition are investigated by means of the transparent model. At the same time, the influences of cavitation on mechanical vibration are studied. As a result, at the onset of cavitation, the longitudinal corner vortex cavitation is formed at the corner between outer wall and either suction or pressure surface of stator blades. After the further decrease of charge pressure, the cavitation bubbles are observed in the flow separation region formed at the leading edge on the suction surface of stator blades. Vibration spectrum peaks are found in the wide range of frequency, which increase with the development of cavitation but then decrease with its excessive development. Discussions are made for higher and lower frequency ranges separately to understand the relation between mechanical vibrations and cavitation.",

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AU - Furukawa, Akinori

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N2 - Cavitation behaviors in an automotive torque converter at pump speed of 600, 700 and 800 min-1 at the stall condition are investigated by means of the transparent model. At the same time, the influences of cavitation on mechanical vibration are studied. As a result, at the onset of cavitation, the longitudinal corner vortex cavitation is formed at the corner between outer wall and either suction or pressure surface of stator blades. After the further decrease of charge pressure, the cavitation bubbles are observed in the flow separation region formed at the leading edge on the suction surface of stator blades. Vibration spectrum peaks are found in the wide range of frequency, which increase with the development of cavitation but then decrease with its excessive development. Discussions are made for higher and lower frequency ranges separately to understand the relation between mechanical vibrations and cavitation.

AB - Cavitation behaviors in an automotive torque converter at pump speed of 600, 700 and 800 min-1 at the stall condition are investigated by means of the transparent model. At the same time, the influences of cavitation on mechanical vibration are studied. As a result, at the onset of cavitation, the longitudinal corner vortex cavitation is formed at the corner between outer wall and either suction or pressure surface of stator blades. After the further decrease of charge pressure, the cavitation bubbles are observed in the flow separation region formed at the leading edge on the suction surface of stator blades. Vibration spectrum peaks are found in the wide range of frequency, which increase with the development of cavitation but then decrease with its excessive development. Discussions are made for higher and lower frequency ranges separately to understand the relation between mechanical vibrations and cavitation.

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Vibration characteristics due to cavitation in stator element of automotive torque converter at stall condition

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