Analysis of the Influence of Structure and Parameters of Axial Piston Pump on Flow Pulsation

Li, Ruichuan; Liu, Qi; Cheng, Yi; Liu, Jilu; Sun, Qiyou; Zhang, Yisheng; Chi, Yurong

doi:10.3390/pr10102138

Cited by 5 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Li et al [18] Based on theoretical analysis, the structure of the piston pump valve plate is optimized.…”

Section: Main Advantages Limitationsmentioning

confidence: 99%

“…When Li analyzed the output flow pulsation characteristics of the plunger pump, only the precompression angle and misalignment angle of the port plate were considered. [ 18 ] In this article, the four characteristic angles of the vibration‐isolating slot are studied. This will make the result analysis more accurate and ensure the effectiveness of optimization.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Noise Analysis and Optimization Design of an Electric–Mechanical–Hydraulic Power Coupler for the Vehicle

Jia,

Sun,

Zhang

et al. 2024

Energy Tech

View full text Add to dashboard Cite

This article proposes a new electric–mechanical–hydraulic power coupler (EMHPC). The EMHPC is integrated by a swash plate axial piston pump and permanent magnet synchronous motor, which can realize the conversion of electric, mechanical, and hydraulic energy. To analyze the noise characteristics of the EMHPC, the mathematical models of fluid noise and electromagnetic noise are established, respectively. An optimization model is built based on Isight, and the multi‐island genetic algorithm is used to optimize the triangular groove structure. The optimization results show that the sound pressure level of sound field monitoring points decreases at different frequencies, and the vibration displacement of the cylinder block decreases. The maximum sound pressure level of the directivity curve of the radiated sound field decreases by 9 dB. For the electrodynamic structure optimization of the EMHPC, this article establishes a combination approximation model with higher accuracy. The structure of the stator and rotor is optimized based on the combined approximate model. The optimization results show that the sinusoidal property of the radial air‐gap magnetic density curve is better after optimization, and the harmonic amplitude of the radial electromagnetic force decreases. The maximum sound pressure level in the air domain of the external sound field is reduced from 69 to 60 dB. Moreover, the superposition analysis of fluid noise and electromagnetic noise is carried out, and the main noise sources of the EMHPC in different working modes are determined.

show abstract

“…Li et al [18] Based on theoretical analysis, the structure of the piston pump valve plate is optimized.…”

Section: Main Advantages Limitationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Noise Analysis and Optimization Design of an Electric–Mechanical–Hydraulic Power Coupler for the Vehicle

Jia,

Sun,

Zhang

et al. 2024

Energy Tech

View full text Add to dashboard Cite

show abstract

“…Focusing on the pump, the flow rate ripple is highest for external gear pumps. In older designs, the ripple can reach a level of about 20% compared to other types of displacement rotary pumps, such as the axial piston pump [11]. This is why the noise level of external gear pumps is the highest, which has motivated a number of studies aimed at finding measures to reduce it.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Sound Pressure Level in Hydraulic Power Unit with External Gear Pump

2023

View full text Add to dashboard Cite

The article presents the results of an experimental study of the sound pressure level (SPL) caused by a hydraulic power unit with an external gear pump. The study was carried out with a specially developed laboratory experimental setup based on a common architecture used in hydraulic power units. Both the hydraulic system and the measuring equipment used are described in detail. The design of the experimental studies performed, including two main configurations with specific parameters regarding the operating modes of the system, is presented. The experimental results obtained are presented in the form of magnitude frequency responses which are compared in accordance with the experiment design. An analysis of the results obtained is performed using various quantitative indicators. For specific operating modes, parametric models were derived by approximation of the experimental data. The resulting models can serve in future work to reduce the SPL by passive or active means (e.g., frequency control of the electric motor). The quantitative analysis can serve as a basis of comparison with results obtained after adding passive (damping ring, etc.) or active means to reduce the SPL.

show abstract

Enhanced Operation Mode Design and Motion Control of a Dual-Redundancy Electro-Hydrostatic Actuator

Jin,

Li,

Yin

et al. 2024

Actuators

View full text Add to dashboard Cite

In dual-redundancy electro-hydrostatic actuators (EHAs), the dual pumps are mainly designed for safety, where the cylinder is controlled mainly by one pump while the other one is standby for redundancy. However, such a strategy is basically like a single-pump-controlled system, and the flow from the pump may be inaccurate when the cylinder moves slowly, which will affect the motion control performance. A new dual-redundancy EHA is designed, and a series of corresponding operation modes are developed, enabling differential operation of the dual pumps. With the proposed operation modes, the inevitable flow inaccuracy problem of the single pump can be addressed through the coordination control of the dual pumps. In order to achieve better motion tracking performance, a model-based backstepping controller is synthesized, where the nonlinearities and uncertainties of the EHA are handled by model compensation and robust feedback design. Comparative simulations with existing control methods for EHAs are conducted and better motion tracking precision is achieved, especially during low-speed motion.

show abstract

Analysis of the Influence of Structure and Parameters of Axial Piston Pump on Flow Pulsation

Cited by 5 publications

References 9 publications

Noise Analysis and Optimization Design of an Electric–Mechanical–Hydraulic Power Coupler for the Vehicle

Noise Analysis and Optimization Design of an Electric–Mechanical–Hydraulic Power Coupler for the Vehicle

Experimental Study of Sound Pressure Level in Hydraulic Power Unit with External Gear Pump

Enhanced Operation Mode Design and Motion Control of a Dual-Redundancy Electro-Hydrostatic Actuator

Contact Info

Product

Resources

About