Numerical Method for Pressure Distribution Calculation on Spherical Distribution Pair of IHT

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To calculate the pressure distribution of oil film on spherical port plate of Innas hydraulic transformer (IHT), finite difference method (FDM) based on boundary fitted coordinate (BFC) technique is presented. Spherical curvilinear grid system was obtained with a coincident boundary of irregular physical area. The flux conservation form of Reynolds’ equation was applied as control equation. By FDM, the thickness distribution and pressure distribution of distribution pair were calculated. It shows that BFC transformation method is advantaged to closely simulate the physical domain with complex geometrical boundaries.

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1427-1432

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March 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Achten P A J, Fu Z, Vael G E M. Transforming future hydraulics: a new design of a hydraulic transformer. SICFP '97 IKP, Linkoping University: (1997).

Google Scholar

[2] Vael G E M, Achten P A J, Fu Z. The Innas Hydraulic Transformer - The Key to The Hydrostatic Common Pressure Rail, SAE Paper 2000-01-2561. USA: SAE International, (2000).

DOI: 10.4271/2000-01-2561

Google Scholar

[3] Achten P A J. What a Difference a Hole Makes – The Commercial Value of the Innas Hydraulic Transformer. SICFP'99 Tampere, Finland: (1999).

Google Scholar

[4] Yang Huayong, Ouyang Xiaoping, Xu Bing. Develop of hydraulic transformer. Chinese Journal of Mechanical Engineering, 2003, 39(5): 1-5. (in Chinese).

Google Scholar

[5] Jing Chongbo, Wei Chao, Li Xueyuan. Research on efficiency characteristic of angle type hydraulic transformer. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(12): 237-241. (in Chinese).

Google Scholar

[6] Yamaguchi A, Fujitani Y, Isoda Y. Characteristics of fluid film between a valve plate and a cylinder block of axial piston pumps and motor. Japan Hydraulics and Pneumatics Society, 1984, 15(4): 314-322.

DOI: 10.5739/jfps1970.15.314

Google Scholar

[7] Pan H C, Sheng J C, Lu Y X. Finite difference computation of valve plate fluid film in axial piston machines. Int. J. Mech. Sci., 1989, 31(10): 779-791.

DOI: 10.1016/0020-7403(89)90044-1

Google Scholar

[8] Yang Huayong, Wang Bin, Zhou Hua. Modeling and analyzing on pressure distribution of plane port pair based on disk-shape gap. Journal of Zhejiang University (Engineering Science), 2010, 44(5): 976-981. (in Chinese).

Google Scholar

[9] Kim J K, Kim H E, Lee Y B. Measurement of fluid film thickness on the valve plate in oil hydraulic axis piston pumps( Part II: Spherical design effects). Journal of Mechanical Science and Technology, 2005, 19(2): 655-663.

DOI: 10.1007/bf02916187

Google Scholar

[10] Wang Bin, Zhou hua, Yang Huayong. Lubrication testing system using electrohydraulic feedback for axial piston machines. Journal of Harbin Engineering University, 2008, 29(4): 348-353. (in Chinese).

Google Scholar