Numerical and experimental investigation on torque characteristics of seawater hydraulic axial piston motor for underwater tool system

Liang, Yang; Nie, Songlin; Yin, Shuai; Zhao, Jingjin; Yin, Fanglong

doi:10.1016/j.oceaneng.2015.05.003

Cited by 25 publications

(17 citation statements)

References 15 publications

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“…Seawater hydraulic power transmission is operated with seawater substituting for mineral oil, which can be designed into an open-circuit system applicable in ocean engineering and deep underwater apparatus [1][2][3][4]. Directional control valve is one of the basic components in seawater hydraulic system, which can be used to control the actuators such as seawater hydraulic motor and cylinder.…”

Section: Introductionmentioning

confidence: 99%

Research on the dynamic characteristics of seawater hydraulic cartridge-type 4/3 directional valve

Nie

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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Water hydraulic directional valve is a key control element in seawater fluid power system. Because of the properties of high bulk modulus and low viscosity of seawater, the leakage and dynamic characteristics of directional valve would be different from those of the traditional one. In this study, a new working principle of seawater hydraulic 4-3 cartridge directional valve (abbr. SHCDV) is introduced, and the mathematical model and simulation model of the SHCDV are developed in this paper. The pressure and flow characteristics are investigated through simulation and experiment. The optimal structure parameters and dynamic characteristic curves of SHCDV are achieved through simulation. The simulation results show that the control chamber area, the damping hole diameter of the cartridge valve, and the flow rate of the pilot valve have important influences on the dynamic characteristics of SHCDV. Meanwhile, the static and dynamic characteristics of SHCDV are measured using a water hydraulic-component-performance test stand. The results show that its rated pressure is 14 MPa, the flow rate is 120 L/min, the dynamic opening response time is 109 ms, and the closing time is 128 ms. The experimental results are basically consistent with the simulation results, and verify the accuracy of the simulation model. This research will lay the foundation for the further development of a high-pressure, high-flow, and fastresponse SHCDV, and it can be widely used in oceanic exploration, marine development, desalination, and other fields.

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Section: Introductionmentioning

confidence: 99%

Research on the dynamic characteristics of seawater hydraulic cartridge-type 4/3 directional valve

Nie

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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“…1 In addition, as compared to hydraulic gear and vane motors, HAPM has higher volumetric efficiency and lower pressure in friction pairs. 2,3 For HAPM, efficient planning, designing and controlling are required for system operating safety and efficiency. Simulation delivers an advantage over analytical approaches and allows better understanding of the motor performance, for which simulation in both design and automation is getting more and more important.…”

Section: Introductionmentioning

confidence: 99%

“…Miao et al 22 established a mathematical model of the valve-based hollow hydraulic motor servo system. Yang et al 2 investigated the torque characteristics for a swash plate-type seawater HAPM and developed an integrated torque mathematical model of the motor with symmetrical pre-compression angles. Sliwinski 23 investigated the commutation unit in a satellite motor and developed a new mathematical model of the liquid flow rate.…”

Section: Introductionmentioning

confidence: 99%

The distributed parameter model of hydraulic axial piston motor and its application in hydraulic excavator swing system

Gao

Huang

Quan

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part I:

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Hydraulic axial piston motor is one of the fundamental components in hydraulic systems; it is widely used in engineered machine, especially in high-power drive or reciprocating motion, such as hydraulic excavator. For hydraulic axial piston motor efficient planning, in addition designing and controlling are required for system operating safety and efficiency. Simulation delivers an advantage over analytical approaches and allows better understanding of the motor performance. For multi-piston hydraulic motor, one of the simulation methods, distributed parameter model, could analyze the detailed performance in each piston chamber. Therefore, in this study, we investigate the characteristics of hydraulic axial piston motor by setting up a distributed parameter model based on physical prototype, which includes mechanical–hydraulics coupling process. The effects of the dynamic pressure inside the piston chamber, the fluidic compressibility and other related parameters are considered in the coupling process. At the same time, the distributed parameter model of hydraulic axial piston motor was used in the simulation model of hydraulic excavator. The results indicate that in two-way hydraulic axial piston motor, the valve plane should adopt symmetrical structure, and silencing groove set should be put on both ends of the valve plane slots, which could reduce pressure ripple and overshoot in the piston chamber. Furthermore, the torque characteristics are highly affected by the clearance between the piston and the cylinder bore. Through this research, we may have a better understanding about the mechanism of output torque fluctuation in hydraulic axial piston motor, and the pressure ripple and overshoot in the piston chamber due to through-flow area discontinuity between the silencing groove and the ends of the valve plane slots. The model is verified using a nine-piston hydraulic motor in hydraulic excavator.

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“…The study by Yang showed that the pre-compression angle of port plate has a significant influence on the torque characteristics. 21 Furthermore, numerical simulation of the relationship between the leakage flow and the flow distribution pair clearance was also examined by Wang. 16 Thus, due to the performance of the high water-based hydraulic fluid, higher design requirements are being put forward for HWBHMs to accommodate the operational requirements for high pressure and low speed operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Characterization and performance analysis of a new type of a high water-based hydraulic motor with a self-balanced distribution valve mode

Qiu

Zhao

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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High water-based hydraulic motors (HWBHMs) with advantages including higher specific power and shorter acceleration and braking time can be used to directly drive loads. In particular, low speed and high torque high water-based hydraulic motors work well in limited space and for special applications (open flame areas). However, traditional structure and flow distribution mechanisms cause serious leakage and lower work efficiency for low speed and high torque high water-based hydraulic motors. Thus, a new structure and flow distribution mechanism with self-balanced distribution valve groups for a high water-based hydraulic motor need to be developed to work in high pressure, low speed, and high torque conditions. In this paper, a high water-based hydraulic motor was theoretically analyzed and the working principle behind a high water-based hydraulic motor was briefly introduced. Numerical simulations were performed to examine the effects of the distribution valve parameters on the distribution performance. An orthogonal test method was used to determine the optimized structure parameters. A simulation model of a high water-based hydraulic motor was established using the AMESim simulation method to validate the feasibility of the optimized structure parameters. This research has laid a foundation for the further development of a high water-based hydraulic motor with low speed and high torque.

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Numerical and experimental investigation on torque characteristics of seawater hydraulic axial piston motor for underwater tool system

Cited by 25 publications

References 15 publications

Research on the dynamic characteristics of seawater hydraulic cartridge-type 4/3 directional valve

Research on the dynamic characteristics of seawater hydraulic cartridge-type 4/3 directional valve

The distributed parameter model of hydraulic axial piston motor and its application in hydraulic excavator swing system

Characterization and performance analysis of a new type of a high water-based hydraulic motor with a self-balanced distribution valve mode

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