Simulation and Test of Gear Pump Flow Pulsation

Chen, Zongbin; Lv, Zhiqiang; Xu, Rongwu; Liao, Jian

doi:10.5293/ijfms.2018.11.3.265

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…The flow pulsations are on the discharge side of the pump and for this reason the distribution of the pump pressure (pump head) is shaped by the distribution of the pump discharge pressure (Figure 10a and 10d). The effects of the pulsating flow, as well as the relevant impact on its measurement through instrumentation (flow and pressure sensors), is thoroughly investigated in the literature (Manring & Kasaragadda, 2003;Frosina et al, 2017;Zongbin et al, 2018). The parameters captured in Figure 10 (a) and (b) are further explained and contextualized with regards to the pump healthy operating point and their low variability is governed by the data integrity measures implemented on the system.…”

Section: Initial Results Highlighting Repeatability and Reproducibilimentioning

confidence: 99%

Requirements and Data Integrity Considerations for Diagnostics Testbeds

Bardakis¹,

Niculita

Wallace

2021

IJPHM

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The process of generating high quality data for the test and evaluation of diagnostic and prognostic algorithms is still of high importance to the Prognostics and Health Management (PHM) research community. To support these efforts a testbed has been designed, manufactured and commissioned. It has specifically been designed in order to replicate several component degradation faults with high accuracy and high repeatability. This paper documents the design, requirements and the data integrity elements of this benchmark hydraulic system. This document consolidates the process of designing diagnostics testbeds as at present there is a lack of literature on how diagnostics testbeds should be built and is intended to serve as a starting point and quick reference guide for engineers and researchers intending to design and develop a testbed to test and validate PHM applications. The first part of this paper highlights design requirements for all the design aspects for such testbeds with great consideration for industry standards and best practices covering the achievement of electromagnetic compatibility (EMC) and noise mitigation, as well as operators’ safety and equipment protection. The second part of the paper put great emphasis on data integrity elements of the data generated by this testbed (describing the system under healthy and faulty conditions) before it is actually used for system characterization or by diagnostics and prognostics algorithms.

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Section: Initial Results Highlighting Repeatability and Reproducibilimentioning

confidence: 99%

Requirements and Data Integrity Considerations for Diagnostics Testbeds

Bardakis¹,

Niculita

Wallace

2021

IJPHM

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show abstract

“…Later, Rundo [3] published a review that compared two models for simulating outlet flow (i.e., lumped parameter model and distributed parameter model). In addition, Chen et al [4] established a simplified gear pump Amesim simulation model to study flow pulsation. e above studies did not consider the changes in the basic properties of the oil.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Flow Characteristics of Straight Conjugate Crescent Gear Pump at Variable Working Conditions

Yang

Chen

et al. 2022

Mathematical Problems in Engineering

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The working conditions (i.e., gas content, working pressure, and working temperature) of oil in the actual hydraulic system are always in a dynamic process, which will cause the basic properties of oil (i.e., density, absolute viscosity, and effective bulk modulus) to change and further generate changes of the flow characteristics in the straight conjugate crescent gear pump (SCCGP). However, no clear explanation has been given for the variation of the flow characteristics of the SCCGP with the working conditions in previous studies. This paper first expounds the gear pair profile equations used to draw the tooth profile curves and the equation applicable to the calculation of the geometric displacement at the given geometric parameters. Subsequently, the mathematical models of the oil’s basic properties are analyzed, and it is explained how the changing working conditions affect the changes in oil properties. After that, the paper designs an orthogonal test scheme and applies it to the study of the flow characteristics of the SCCGP for the first time to optimize its working conditions. Then, the paper performs simulations in commercial CFD numerical software, and the change laws of the internal flow field, flow pulsation, pressure pulsation, volumetric efficiency, and total efficiency of the SCCGP at different working conditions are analyzed in detail. The working conditions for decreasing pulse rate and improving total efficiency are summarized. Finally, for model validation purposes, the paper elucidates the construction process of a high-pressure positive displacement pump test system and carried out experimental research. The simulation and actual measurement results are compared under the same working conditions. The results validate the accuracy of the simulation model and the potential for future analytical studies.

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Performance prediction and experimental study of variable displacement vane oil pump

Liu

Xiao

et al. 2020

J. eng.

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Simulation and Test of Gear Pump Flow Pulsation

Cited by 6 publications

References 4 publications

Requirements and Data Integrity Considerations for Diagnostics Testbeds

Requirements and Data Integrity Considerations for Diagnostics Testbeds

Analysis of Flow Characteristics of Straight Conjugate Crescent Gear Pump at Variable Working Conditions

Performance prediction and experimental study of variable displacement vane oil pump

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