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Modeling and performance improvement of the constant power regulator systems in variable displacement axial piston pump.

Park SH, Lee JM, Kim JS - ScientificWorldJournal (2013)

Bottom Line: The validity of the simulation model of the constant power regulator system is verified by comparing simulation results with experiments.The shape modification of the counterbalance piston is proposed to improve the undesirable performance of the mechanical-type constant power regulator.The performance improvement is verified by computer simulation using AMESim software.

View Article: PubMed Central - PubMed

Affiliation: School of Mechanical Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 609-732, Republic of Korea.

ABSTRACT
An irregular performance of a mechanical-type constant power regulator is considered. In order to find the cause of an irregular discharge flow at the cut-off pressure area, modeling and numerical simulations are performed to observe dynamic behavior of internal parts of the constant power regulator system for a swashplate-type axial piston pump. The commercial numerical simulation software AMESim is applied to model the mechanical-type regulator with hydraulic pump and simulate the performance of it. The validity of the simulation model of the constant power regulator system is verified by comparing simulation results with experiments. In order to find the cause of the irregular performance of the mechanical-type constant power regulator system, the behavior of main components such as the spool, sleeve, and counterbalance piston is investigated using computer simulation. The shape modification of the counterbalance piston is proposed to improve the undesirable performance of the mechanical-type constant power regulator. The performance improvement is verified by computer simulation using AMESim software.

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Related in: MedlinePlus

Condition of load pressure for constant power regulator system.
© Copyright Policy - open-access
Related In: Results  -  Collection


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fig20: Condition of load pressure for constant power regulator system.

Mentions: Figure 20 shows the load pressure regarding the reference input in this simulation. In order to implement the same load conditions, the output that was derived from the mechanical regulator with VDAPP was used in the AMESim simulation. Since the simulation operates under the same conditions as the experiment, the behavior of the regulator spool and sleeve can be inferred if the outputs of the experiment and simulation are similar.


Modeling and performance improvement of the constant power regulator systems in variable displacement axial piston pump.

Park SH, Lee JM, Kim JS - ScientificWorldJournal (2013)

Condition of load pressure for constant power regulator system.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3824334&req=5

fig20: Condition of load pressure for constant power regulator system.
Mentions: Figure 20 shows the load pressure regarding the reference input in this simulation. In order to implement the same load conditions, the output that was derived from the mechanical regulator with VDAPP was used in the AMESim simulation. Since the simulation operates under the same conditions as the experiment, the behavior of the regulator spool and sleeve can be inferred if the outputs of the experiment and simulation are similar.

Bottom Line: The validity of the simulation model of the constant power regulator system is verified by comparing simulation results with experiments.The shape modification of the counterbalance piston is proposed to improve the undesirable performance of the mechanical-type constant power regulator.The performance improvement is verified by computer simulation using AMESim software.

View Article: PubMed Central - PubMed

Affiliation: School of Mechanical Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 609-732, Republic of Korea.

ABSTRACT
An irregular performance of a mechanical-type constant power regulator is considered. In order to find the cause of an irregular discharge flow at the cut-off pressure area, modeling and numerical simulations are performed to observe dynamic behavior of internal parts of the constant power regulator system for a swashplate-type axial piston pump. The commercial numerical simulation software AMESim is applied to model the mechanical-type regulator with hydraulic pump and simulate the performance of it. The validity of the simulation model of the constant power regulator system is verified by comparing simulation results with experiments. In order to find the cause of the irregular performance of the mechanical-type constant power regulator system, the behavior of main components such as the spool, sleeve, and counterbalance piston is investigated using computer simulation. The shape modification of the counterbalance piston is proposed to improve the undesirable performance of the mechanical-type constant power regulator. The performance improvement is verified by computer simulation using AMESim software.

Show MeSH
Related in: MedlinePlus