Theoretical and Simulation Investigations on Flow Ripple Reduction of Axial Piston Pumps Using Nonuniform Distribution of Pistons

Lyu, Fei; Ye, Shaogan; Zhang, Junhui; Xu, Bing; Huang, Weidi; Xu, Haogong; Huang, Xiaochen

doi:10.1115/1.4048859

Cited by 14 publications

(7 citation statements)

References 12 publications

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“…Noise reduction is a major challenge in the design and operation of axial piston pumps, as it affects the system's performance, safety, comfort, and environmental quality [18]. Axial piston pumps generate noise from three sources: structure-borne noise, fluid-borne noise, and airborne noise [19]. Discrete-frequency tones at integral multiples of the pumping frequency are the main contributors to noise generation [20].…”

Section: Introductionmentioning

confidence: 99%

A Multi-strategy Enhanced Dung Beetle Optimization Algorithm and Its Application in Engineering

Zhang,

Zhang

2024

Preprint

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This paper introduces a novel multi-strategy enhanced dung beetle optimization (MSDBO) algorithm that is designed to address several issues identified in the standard dung beetle optimization algorithm. Specifically, the MSDBO aims to enhance convergence speed, reduce susceptibility to local optima, and increase search accuracy. By incorporating three strategies: tent chaotic mapping for population initialization, the golden sinusoidal strategy for position updating, and the Lévy flight strategy for balancing exploration and exploitation, the standard dung beetle optimization algorithm is enhanced. The MSDBO algorithm is evaluated using twelve benchmark test functions and compared against five state-of-the-art algorithms. The results consistently show that MSDBO exhibits faster convergence speeds and more accurate solutions than the other algorithms across most of the test functions. In addition, MSDBO is also applied to optimize the parameters of a valve plate, including the close angle, cross angle, triangle groove sizes, and wrap angle. The optimization outcomes reveal that MSDBO effectively minimizes pressure ripples in the piston chamber, resulting in reduced flow rate fluctuations and noise emission compared to the initial design. This study highlights the potential of the MSDBO algorithm in tackling complex nonlinear engineering optimization problems.

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Section: Introductionmentioning

confidence: 99%

A Multi-strategy Enhanced Dung Beetle Optimization Algorithm and Its Application in Engineering

Zhang,

Zhang

2024

Preprint

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“…Furthermore, they proposed an evaluation criterion of the flow pulsation performance of the damping groove based on the time domain characteristics, and then optimized the structure of the damping groove of the port plate to reduce the flow pulsation at the outlet. Lyu et al [27] proposed a method to reduce the harmonic amplitude of specific order flow pulsation by using piston non-uniform distribution. Deng et al [28] established a kinematic model, a piston chamber pressure model, a dynamic model, and an external return spherical bearing pair lubrication model for the double-row axial piston pump, and studied the kinematic characteristics of the piston pump and the lubrication characteristics of external return mechanism under multiple working conditions.…”

Section: Introductionmentioning

confidence: 99%

Control and Dynamic Characteristics Analysis for the Double-Compound Axial Piston Pump Based on Working Conditions

et al. 2022

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The periodic flow and pressure pulsation of the axial piston pump can lead to periodic vibration, noise, and even damage to various components in the hydraulic system. Therefore, the dynamic characteristics analysis of the axial piston pump in the hydraulic system is of great significance for reducing vibration and noise in the hydraulic system and improving efficiency. The double-compound axial piston pump is the key component of a high power and large flow hydraulic power system, which has a special power control mode. In this paper, the working and control principles of the double-compound axial piston pump are analyzed, the numerical model of the double-compound axial piston pump is established, and the effectiveness of the model is verified through experimental tests. The constant power control characteristics of the double-compound axial piston pump under different power settings and the variable power control characteristics under the rated load pressure are analyzed. By analyzing the dynamic characteristics of the double-compound axial piston pump, the influence of different working conditions on the dynamic characteristics is investigated. The results show that the output efficiency of the double-compound axial piston pump is higher when the output flow is larger. When the piston chamber works in the closed pre-compression pressure zone and the closed pre-release pressure zone, oil backflow occurs. The oil backflow in the piston chamber seriously intensifies the outlet flow pulsation of the double-compound axial piston pump. The flow pulsation rate is positively correlated with load pressure and power control pilot pressure, while negatively correlated with spindle speed. The paper provides a basis for the analysis and optimization of power control, flow pulsation, fluid vibration, and noise of the double-compound axial piston pump.

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“…Cho and Jung 6 analyzed the effects on the characteristics of the pressure ripples of the bent-axis type axial piston pump. Fei et al 7 put forward a method for the nonuniform distribution of the pistons to adjust the output flow ripple of the axial piston pump. Shin and Woong 8 developed a new mathematical model to analyze the pump pressure and flow considering the pressure behaviors of each cylinder and discharge piping.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experimental analysis of rotor-bearing system with rolling element bearing fault in axial piston pump under churning condition

Tang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part K:

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Axial piston pumps have been widely studied and applied in engineering applications. Generally, traditional simulation models are established to analyze the vibration characteristics of the pump without the churning effect of the gap annular flow. A new vibration model of a rotor-bearing system considering the oil churning effect and time-varying excitation introduced by localized faults on the rolling element bearing is proposed in this work. External forces on rotor-bearing system are solved to obtain time-varying displacement and contact stiffness coefficient based on lump mass method. The dynamic model has constructed to analyze the dynamic characteristics of rotor-bearing system with bearing faults. The validity of the model is verified by comparing the simulation results with the analysis results and the experimental results. The findings reveal that rolling element bearing with localized faults alters the vibration characteristics of the rotor-bearing system. Both the simulation results and the experimental results show the fault characteristic frequency of the rotor-bearing system and the explicit component of its harmonics. The fault characteristic frequency of rotor-bearing system with bearing faults is consistent with the simulation result, and the error is less than 10%. The spectrum of the experimental and simulated signals is similar and indicates the validity of the dynamical model.

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Theoretical and Simulation Investigations on Flow Ripple Reduction of Axial Piston Pumps Using Nonuniform Distribution of Pistons

Cited by 14 publications

References 12 publications

A Multi-strategy Enhanced Dung Beetle Optimization Algorithm and Its Application in Engineering

A Multi-strategy Enhanced Dung Beetle Optimization Algorithm and Its Application in Engineering

Control and Dynamic Characteristics Analysis for the Double-Compound Axial Piston Pump Based on Working Conditions

Simulation and experimental analysis of rotor-bearing system with rolling element bearing fault in axial piston pump under churning condition

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