Effect of working medium on the noise and vibration characteristics of water hydraulic axial piston pump

Pang, Hao; Wu, Defa; Deng, Yipan; Cheng, Qian; Liu, Yinshui

doi:10.1016/j.apacoust.2021.108277

Cited by 22 publications

(7 citation statements)

References 27 publications

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“…The hydraulic pump studied in this paper is an inclined plate axial piston pump [16][17][18]. Assuming that at a certain time, the number of pistons at the hydraulic position is n, then the instantaneous flow of the piston pump is shown as follows:…”

Section: The Mathematical Model Of the Pump-controlled Cylinder Systemmentioning

confidence: 99%

Design of Position Control Method for Pump-Controlled Hydraulic Presses via Adaptive Integral Robust Control

Huang

Ren

et al. 2021

Processes

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This paper takes the position control performance of pump-controlled hydraulic presses as the research object. The control methods are designed respectively for the two motion stages of rapid descent and slow descent of hydraulic presses in order to improve the control performance of the system. First of all, the accuracy model of the pump-controlled hydraulic presses position servo system (the pump-controlled hydraulic presses position servo system, which is called PCHPS) and its MATLAB/Simulink simulation platform are established. Based on the theoretical analysis and experimental data, the interference factors affecting the tracking accuracy and positioning accuracy of the PCHPS are analyzed. Then, an adaptive integral robust control (the adaptive integral robust control, which is called AIRC) for PCHPS is designed to reduce the influence of nonlinear factors on the system, and the effectiveness of the controller is verified by simulation. Finally, the position control experiment of PCHPS is designed, and the experimental results show that the AIRC can effectively reduce nonlinear factors such as unknown interference in the slow-down stage of the system. The positioning accuracy is raised to within 0.008 mm, which improves the process level of the hydraulic presses.

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Section: The Mathematical Model Of the Pump-controlled Cylinder Systemmentioning

confidence: 99%

Design of Position Control Method for Pump-Controlled Hydraulic Presses via Adaptive Integral Robust Control

Huang

Ren

et al. 2021

Processes

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“…For example, Zuti et al [12,29] found that the pressure frequency spectrum of seawater piston pump system with eight pistons consisted of a fundamental frequency and several harmonic frequencies. Pang et al [30] reported that the pressure pulsation exhibits two distinct peaks in one cycle. When multiple PEHs are arranged with array distribution, it is necessary to conduct in-depth research on whether the performance of each PEH is consistent, including transient voltage, frequency spectrum analysis, root mean square (RMS) voltage, average power, and optimal resistance.…”

Section: Introductionmentioning

confidence: 99%

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

Xian,

Xu,

Chen

et al. 2024

J. Phys. D: Appl. Phys.

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In this paper, an array piezoelectric energy harvester (APEH) is designed for energy collection from water hydraulic system. The APEH is arranged in a spatial axial array, exhibiting excellent insulation and waterproof properties. The effects of connection modes and pressure pulsation parameters on the output performance of APEH are investigated through theoretical analysis, simulation and experiment. The results show that the output electric energy of each piezoelectric disk is consistent, and it is generated by the deformation caused by pressure pulsation. The connection modes show significant differences at different resistances. Series and parallel connections have the same maximum output power. The parallel connection has a smaller optimal resistance and has advantages in practical engineering applications. Both the pressure amplitude and the pulsation frequency affect the output voltage and power and increasing the pulsation frequency leads to the decrease of optimal resistance. By employing parallel connection, APEH can achieve higher output at lower load resistances. When the resistance is 12 kΩ, the average power and power density are reach as 997.63 μW and 2.54 μW mm−3, respectively. In summary, the APEH proposed in this paper offering a viable solution for energy recovery in water hydraulic systems and the sustainable power supply of the sensors, along with providing relevant theoretical references and practical schemes.

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“…Compared with oil, the water medium makes the hydraulic system have many different performances, 15,16 and makes it more difficult to achieve good sealing performance because of its small viscosity and poor lubricity. [17][18][19] So it is necessary to study the sealing performance of the ultra-high pressure stop valve used in SHVBS. Some research has been done to study the sealing performance of the stop valves, while there is a little reference for the design of valve ports with line contact form, especially for ultra-high pressure valves.…”

Section: Introductionmentioning

confidence: 99%

Research on the sealing performance of a seawater stop valve considering roundness error used in an 11000-m manned submersible

Wang

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The sealing performance is a critical characteristic of the stop valve used in an 11000-m manned submersible, while it is a challenge when the pressure difference at the valve port reaches 120 MPa. Previous studies have mainly focused on the effect of surface microtopography, such as the surface roughness, on sealing performance. They believed that rougher surfaces will result in more severe leaks. However, in the sealing experiments of two stop valves with different materials and surface roughness in this paper, the relationship between surface roughness and sealing performance is inconsistent with existing research. There should be another factor that affects the sealing performance of the stop valves more strongly. So a new sealing principle considering the roundness error is proposed. The sealing force, which is determined by the environmental pressure, creates radial deformation on the valve port. The radial deformation of the valve seat is analyzed by a validated finite element analysis (FEA) at various environmental pressures. Then the critical environmental pressure at which the leak stops is obtained when the radial deformation is greater than the roundness error, which is measured. The results show that the critical environmental pressure obtained by FEA is very close to that obtained by experiment. So the consideration of the roundness error of the valve seat is accurate and helpful to the research on the sealing performance of the ultra-high pressure stop valves, and the sealing performance of the ultra-high pressure stop valve can be easily evaluated by FEA.

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Effect of working medium on the noise and vibration characteristics of water hydraulic axial piston pump

Cited by 22 publications

References 27 publications

Design of Position Control Method for Pump-Controlled Hydraulic Presses via Adaptive Integral Robust Control

Design of Position Control Method for Pump-Controlled Hydraulic Presses via Adaptive Integral Robust Control

Performance study of an array piezoelectric energy harvester for pressure pulsation vibration energy in water hydraulic system

Research on the sealing performance of a seawater stop valve considering roundness error used in an 11000-m manned submersible

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