@article{YE2026, 
author = {Shaogan YE and Yutao WANG and Yue BAO and Jing LUO and Shoujun ZHAO and Huixiang LIU and Min YU},
title = {Dynamic-model-based multi-objective optimization of valve plate for vibration reduction in axial piston pumps},
year = {2026},
journal = {Chinese Journal of Aeronautics},
volume = {39},
number = {6},
keywords = {Dynamic models, Flow control, Optimization, Pumps, Vibration control},
url = {https://www.sciopen.com/article/10.1016/j.cja.2025.104045},
doi = {10.1016/j.cja.2025.104045},
abstract = {Axial piston pumps are widely used to supply the fluid power, but their significant vibration has become a growing concern. To address this issue, this paper presents a novel dynamic model for the axial piston pump and mitigates both flow fluctuation and mechanical vibration powers through a multi-objective optimization method. A Lumped-Parameter (LP) model is first introduced to describe dynamic behaviors of the entire pump assembly, and the Newmark-β method is adopted to calculate flow fluctuation and mechanical vibration powers. Experimental validation is conducted to ensure the accuracy of the proposed model. Using this validated model, a multi-objective optimization algorithm is employed to optimize the structural parameters of three representative valve plate types, aiming to simultaneously reduce flow fluctuation and mechanical vibrations. The optimization results demonstrate a significant reduction in the pump vibration power, as well as improvements in cavitation and pressure overshoot conditions. Among these optimized designs, the valve plate with hole-shaped damping grooves shows the lowest vibration power, while the valve plate with the triangular damping grooves achieves the lowest maximum piston chamber pressure. This study offers a promising approach for designing quieter axial piston pumps, which promotes the fluid power technology.}
}