Numerical investigations of the flow induced oscillation of a torque converter

The flow induced oscillation of a three-element torque converter was investigated numerically under various operational conditions. A two-way coupling fluid–structure interaction simulation was performed using ANSYS $^{\circledR} $ -Fluent $ ^{\circledR} $ along with the ANSYS $ ^{\circledR} $ Trans...

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Main Authors: B. Liu, Q. Yan, W. Wei
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Engineering Applications of Computational Fluid Mechanics
Subjects:
Online Access:http://dx.doi.org/10.1080/19942060.2017.1419149
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author B. Liu
Q. Yan
W. Wei
author_facet B. Liu
Q. Yan
W. Wei
author_sort B. Liu
collection DOAJ
description The flow induced oscillation of a three-element torque converter was investigated numerically under various operational conditions. A two-way coupling fluid–structure interaction simulation was performed using ANSYS $^{\circledR} $ -Fluent $ ^{\circledR} $ along with the ANSYS $ ^{\circledR} $ Transient Structural module. The fluid pressure excitation and the dynamic structure response were investigated at various turbine/pump rotation speed ratios $ SR \in [0.0 0.8] $ . The maximum pressure blade load and structural deflections were observed in the stall condition, corresponding to the highest torque transmission ratio. The pressure pulsations and structure oscillations were monitored at locations selected on the basis of time-averaged distributions. The turbine oscillations were dominated by the frequency of pump blade passing at $ SR = 0.0 $ . The stator always oscillated under impact from the upstream flow with the dominating pump shaft frequency. Both the time-averaged and instantaneous features revealed that the pump oscillations were almost independent of SR.
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spelling doaj.art-747700d2eb684eb097c48194860e2daa2022-12-21T23:05:19ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2018-01-0112127028110.1080/19942060.2017.14191491419149Numerical investigations of the flow induced oscillation of a torque converterB. Liu0Q. Yan1W. Wei2Beijing Institute of TechnologyBeijing Institute of TechnologyBeijing Institute of TechnologyThe flow induced oscillation of a three-element torque converter was investigated numerically under various operational conditions. A two-way coupling fluid–structure interaction simulation was performed using ANSYS $^{\circledR} $ -Fluent $ ^{\circledR} $ along with the ANSYS $ ^{\circledR} $ Transient Structural module. The fluid pressure excitation and the dynamic structure response were investigated at various turbine/pump rotation speed ratios $ SR \in [0.0 0.8] $ . The maximum pressure blade load and structural deflections were observed in the stall condition, corresponding to the highest torque transmission ratio. The pressure pulsations and structure oscillations were monitored at locations selected on the basis of time-averaged distributions. The turbine oscillations were dominated by the frequency of pump blade passing at $ SR = 0.0 $ . The stator always oscillated under impact from the upstream flow with the dominating pump shaft frequency. Both the time-averaged and instantaneous features revealed that the pump oscillations were almost independent of SR.http://dx.doi.org/10.1080/19942060.2017.1419149Flow induced oscillationfluid–structure interactioncomputational fluid dynamicstorque converter
spellingShingle B. Liu
Q. Yan
W. Wei
Numerical investigations of the flow induced oscillation of a torque converter
Engineering Applications of Computational Fluid Mechanics
Flow induced oscillation
fluid–structure interaction
computational fluid dynamics
torque converter
title Numerical investigations of the flow induced oscillation of a torque converter
title_full Numerical investigations of the flow induced oscillation of a torque converter
title_fullStr Numerical investigations of the flow induced oscillation of a torque converter
title_full_unstemmed Numerical investigations of the flow induced oscillation of a torque converter
title_short Numerical investigations of the flow induced oscillation of a torque converter
title_sort numerical investigations of the flow induced oscillation of a torque converter
topic Flow induced oscillation
fluid–structure interaction
computational fluid dynamics
torque converter
url http://dx.doi.org/10.1080/19942060.2017.1419149
work_keys_str_mv AT bliu numericalinvestigationsoftheflowinducedoscillationofatorqueconverter
AT qyan numericalinvestigationsoftheflowinducedoscillationofatorqueconverter
AT wwei numericalinvestigationsoftheflowinducedoscillationofatorqueconverter