Flow Ripple Reduction of Axial-Piston Pump by Structure Optimizing of Outlet Triangular Damping Groove

The triangular damping groove on the valve plate can effectively reduce the discharge flow ripple of an axial piston pump, which structural parameters will directly affect the pump’s dynamic characteristics. Herein, a multi-parameter data-based structure optimizing method of the triangular damping g...

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Bibliographic Details
Published inProcesses Vol. 8; no. 12; p. 1664
Main Authors Hong, Haocen, Zhao, Chunxiao, Zhang, Bin, Bai, Dapeng, Yang, Huayong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2020
Subjects
Axial flow pumps
Cavitation
Damping
Design
Discharge
Dynamic characteristics
Fluid dynamics
Friction
Grooves
Mathematical models
Numerical models
Optimization
Outlet flow
Parameters
Piston pumps
Ripples
Simulation
Turbulence models
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Summary:The triangular damping groove on the valve plate can effectively reduce the discharge flow ripple of an axial piston pump, which structural parameters will directly affect the pump’s dynamic characteristics. Herein, a multi-parameter data-based structure optimizing method of the triangular damping groove is investigated using numerical models and simulation results. The mathematical models of a nine-piston pump are proposed and developed by MATLAB/Simulink, and the simulation results are verified by experimental results. Then, the effects of width angle and depth angle on discharge flow are analyzed. Based on the analysis of groove parameters, an optimizing index, which considering the time domain characteristics of discharge flow, is proposed. As results show, comparing with the initial specific groove structure, the amplitude of flow ripple is reduced from 14.6% to 9.8% with the optimized structure. The results demonstrate that the outlet flow ripple can be significantly reduced by the optimized structure, and the proposed multi-parameter optimizing method can play a guiding significance in the design of low-ripple axial piston pumps.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr8121664