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Study on Cavitation Effect of Hydraulic Retarder
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 19, 2022 by SAE International in United States
Annotation ability available
Hydraulic retarder is important auxiliary brake device which widely used in commercial vehicles for its economy, safety and driving comfort, however cavitation will occur and reduce the braking performance when hydraulic retarder operates at high speed. In this paper, a model of hydraulic retarder considering cavitation effect was established, and the reliability of the model was verified by comparing with the external characteristics of the product which was obtained from Voith’s official discloses data. Then the cavitation of hydraulic retarder under high-speed working condition was studied by the establishing simulation model. The simulation model can describe and analyze the internal flow field in the hydraulic retarder, and can be used as an important tool for the development and optimization of hydraulic retarder in the future. When hydraulic retarder’s rotational speed is about 1500rpm, the cavitation will be observed in the working chamber. When the outlet flow rate is low and the oil filling rate is high, the oil vapor fraction is greater than the air fraction. With the increase of the outlet flow rate, the oil fraction decreases, the oil vapor fraction first increases and then decreases, and the air fraction increases gradually and dominates after a certain out flow rate is exceeded. Air coming in from the float-bowl vent can suppress the cavitation inside the hydraulic retarder.
CitationHuang, Y., Yu, L., Cheng, Y., and Wang, R., "Study on Cavitation Effect of Hydraulic Retarder," SAE Technical Paper 2022-01-1169, 2022, https://doi.org/10.4271/2022-01-1169.
- Le Gigan , G. , Vernersson , T. , Lundén , R. , and Skoglund , P. Disc Brakes for Heavy Vehicles: An Experimental Study of Temperatures and Cracks Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering 229 6 2015 684 707 10.1177/0954407014550843
- Mejri , I. , Bakir , F. , Rey , R. , and Belamri , T. Comparison of Computational Results Obtained From a Homogeneous Cavitation Model With Experimental Investigations of Three Inducers Journal of Fluids Engineering 128 6 2006 1308 1323 10.1115/1.2353265
- Dong Liang , Z.Y. , Jiawei , X. , and Houlin , L. Change Mechanism of Vibration and Noise Characteristics before and after Cavitation in Hydraulic Retarder Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) 33 14 2017 56 62 10.11975/j.issn.1002-6819.2017.14.008
- Tsutsumi , K. , Watanabe , S. , and Tsuda , S. Cavitation Simulation of Automotive Torque Converter Using a Homogeneous Cavitation Model European Journal of Mechanics-B/Fluids 61 2017 263 270 10.1016/j.euromechflu.2016.09.001
- Watanabe , S. , Otani , R. , Kunimoto , S. 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 Conference and the ASME 2012 10th International Conference 2012 535 541
- Dong , L. , Xiao , J.W. , Ming , J.Y. , and Liu , H.L. Numerical Simulation and Experimental Study on Cavitation Behavior of Hydraulic Retarder Model Journal of Drainage and Irrigation Machinery Engineering( JDIME) 35 1 2017 1 5
- et al. Scale-Resolving Simulations and Investigations of the Flow in a Hydraulic Retarder Considering Cavitation Journal of Zhejiang University-Science A 2020 21 10 817 833 10.1631/jzus.A1900466
- Liu , C. , Bu , W. , and Wang , T. Numerical Investigation on Effects of Thermophysical Properties on Fluid Flow in Hydraulic Retarder International Journal of Heat and Mass Transfer 114 Nov. 2017 1146 1158 10.1016/j.ijheatmasstransfer.2017.06.124
- Bu , W. et al. Investigation on the Dynamic Influence of Thermophysical Properties of Transmission Medium on the Internal Flow Field for Hydraulic Retarder International Journal of Heat and Mass Transfer 126 2018 1367 1376 10.1016/j.ijheatmasstransfer.2018.05.037