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Abstract: The optimization of the valve plate transition region is an important way of reducing the noise emission for an axial piston pump. However, the optimized methods through simulation or experiment are actually trial and error, and they cannot indicate the precise structural parameters of the valve plate transition region. In this study, a new design method for the transition region of valve plate based on the matching of flow area and reduction of transient reverse flow was proposed, and with which a valve plate was designed. Then, the impact of the flow ripple in the discharge line of an axial piston pump and the pressure overshoot and undershoot in the piston chamber on hydraulic and structural noise for axial piston pump is discussed. The noise reduction effect of the axial piston pump with this valve plate was analyzed by adopting a flow characteristic simulation model. Finally, the results showed that the application of this design method could contribute much to the reduction of the flow ripple and elimination of the pressure overshoot and undershoot. As a consequence, the method can be used in the design of a low-noise open circuit axial piston pump.

The purpose of this study was to eliminate the overshoot and undershoot of cylinder pressure and to reduce the flow pulsation. So the authors proposed two criteria for designing the transition geometry of valve plates. I think they got at the heart of the matter and the process was quite reasonable.

一种新的轴向柱塞泵配流盘过渡区设计方法

[1]Edge, K.A., Darling, J., 1986. Cylinder pressure transients in oil hydraulic pumps with sliding plate valves. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 200(1):45-54.

[2]Guan, C.H., Jiao, Z.X., He, S.Z., 2014. Theoretical study of flow ripple for an aviation axial-piston pump with damping holes in the valve plate. Chinese Journal of Aeronautics, 27(1):169-181.

[3]Harrison, K.A., Edge, K.A., 2000. Reduction of axial piston pump pressure ripple. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 214(1):53-64.

[4]Ivantysyn, J., Ivantysynova, M., 2001. Hydrostatic Pumps and Motors. Academia Books International, New Delhi, India.

[5]Ivantysynova, M., Seeniraj, G.K., Huang, C., 2005. Comparision of different valve plate design focusing on oscillating forces and flow pulsation. The Ninth Scandinavian International Conference on Fluid Power, Linköping.

[6]Johansson, A., 2005. Design Principles for Noise Reduction in Hydraulic Piston Pumps–Simulation, Optimisation and Experimental Verification. PhD Thesis, Linköping University, Linköping.

[7]Johansson, A., Palmberg, J.O., 2005. The importance of suction port timing in axial piston pumps. The Ninth Scandinavian International Conference on Fluid Power, Linköping.

[8]Kim, J.K., Kim, H.E., Jung, J.Y., et al., 2004. Relation between pressure variations and noise in axial type oil piston pumps. KSME International Journal, 18(6):1019-1025.

[9]Ma, J.E., Fang, Y.T., Xu, B., et al., 2010. Optimization of cross angle based on the pumping dynamics model. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 11(3):181-190.

[10]Mandal, N.P., Saha, R., Sanyal, D., 2008. Theoretical simulation of ripples for different leading-side groove volumes on manifolds in fixed-displacement axial-piston pump. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 222(6):557-570.

[11]Mandal, N.P., Saha, R., Sanyal, D., 2012. Effects of flow inertia modelling and valve-plate geometry on swash-plate axial-piston pump performance. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 226(4):451-465.

[12]Manring, N.D., 2003. Valve-plate design for an axial piston pump operating at low displacements. Journal of Mechanical Design, 125(1):200-207.

[13]Manring, N.D., Zhang, Y., 2001. The improved volumetric-efficiency of an axial piston pump utilizing a trapped-volume design. Journal of Dynamic Systems, Measurement, and Control, 123(3):479-487.

[14]Nafz, T., Murrenhoff, H., Rudik, R., 2008. Active system for noise reduction and efficiency improvement of axial piston pump. Proceedings of Fluid Power and Motion Control, Bath, UK, p.327-340.

[15]Seeniraj, G.K., Ivantysynova, M., 2006a. Impact of valve plate design on noise, volumetric efficiency and control effort in an axial piston pump. Proceedings of IMECE2006, Chicago.

[16]Seeniraj, G.K., Ivantysynova, M., 2006b. Noise reduction in axial piston pump machines based on multi-paremeter optimization. Proceedings of 4th FPNI-PhD Symposium, Sarasota, p.235-246.

[17]Vacca, A., Klop, R., Ivantysynova, M., 2010. A numerical approach for the evaluation of the effects of air release and vapour cavitation on effective flow rate of axial piston machines. International Journal of Fluid Power, 11(1):33-45.

[18]Wang, S., 2010. The analysis of cavitation problems in the axial piston pump. Journal of Fluids Engineering, 132(7):074502-1-6.

[19]Xu, B., Zhang, J.H., Yang, H.Y., 2013. Simulation research on distribution method of axial piston pump utilizing pressure equalization mechanism. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 227(3):459-469.