Modeling the Load of the Kinematic Pair Piston-cylinder in an Axial Piston Pump by Means of FEA

Złoto, T.; Stryjewski, P

doi:10.1016/j.proeng.2017.02.194

Cited by 4 publications

(3 citation statements)

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“…Moreover, axial piston pump usually worked continuously under high pressure and adverse working environment, and the contaminated oil is easy to cause its failure. It is necessary to study the fault diagnosis of the axial piston pump [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Fault Diagnosis of Axial Piston Pump Based on Extreme‐Point Symmetric Mode Decomposition and Random Forests

Lei

Jiang

Niu

et al. 2021

Shock and Vibration

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Aiming at fault diagnosis of axial piston pumps, a new fusion method based on the extreme-point symmetric mode decomposition method (ESMD) and random forests (RFs) was proposed. Firstly, the vibration signal of the axial piston pump was decomposed by ESMD to get several intrinsic mode functions (IMFs) and an adaptive global mean curve (AGMC) on the local side. Secondly, the total energy was selected as the data of feature extraction by analyzing the whole oscillation intensity of the signal. Thirdly, the data were preprocessed and the labels were set, and then, they were adopted as the training and testing set of machine learning samples. Lastly, the RFs model was created based on machine learning service (MLS) to diagnose the faults of the axial piston pump on the cloud. Using the test and verifying the data set for comparative testing, the fault diagnosis precision rates of the model are above 90.6%, the recall rates are more than 90.9%, the F1 score is higher than 90.7%, and the accuracy rate of this model reached 97.14%. A benchmark data simulation of mechanical transmission systems and an experimental data investigation of an axial piston pump are performed to manifest the superiority of the present method by comparing with classification and regression trees (CART) and support vector machine (SVM).

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Section: Introductionmentioning

confidence: 99%

Fault Diagnosis of Axial Piston Pump Based on Extreme‐Point Symmetric Mode Decomposition and Random Forests

Lei

Jiang

Niu

et al. 2021

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…Zloto and Stryjewski [15] analyzed the load of the kinematic pair piston-cylinder block in an axial piston pump using spatial models of discrete and analog piston load.…”

Section: Introductionmentioning

confidence: 99%

The effect of dynamics of the swash plate–slippers–piston assembly on friction torques in bearings in compressor of cooling aggregate

Woźniak

Szydłowski

Siczek

2020

Mechanics and Mechanical Engineering

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The swash plate type compressor utilized in car air conditioning devices and cooling system was analyzed in this study. Proper dynamic behavior of the components in such a compressor affected the correct functioning of the whole system. The aim of the study was to identify the characteristics of the main motion components in the swash plate–slippers–piston assembly of the compressor and to estimate the friction torques in its bearings. Some models of this assembly are elaborated and presented in the paper. The main components of slipper complex motion were identified, such as reciprocal motion along the axis of piston, rotation around piston axis, and short-time rotation around its own axis. Friction torque in axial bearing was higher than in journal bearing and varied with the rotational angle. Friction torques in journal bearings varied with the rotational angle and had different courses for two bearings of the compressor.

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“…A piston pump has good tightness and can output considerable pressure, and a traditional reciprocating pump utilizes a crankshaft connected to a rod mechanism to convert the piston's reciprocating motion to rotational crankshaft motion. The imbalance of the moment of inertia and inertial force induced by the reciprocating mechanism causes increased inertial load on the support members of the piston pump; hence, unstable vibration and noise (Pan et al, 2018;Zloto and Stryjewski, 2017) are easily caused throughout the system. Further, the mechanism of the reciprocating piston pump driven by the crankshaft rotation is complex and unsuitable for high-speed operation, limiting the piston-pump flow and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation and flow analysis of two-cylinder triangular rotor pump based on experiment and numerical simulation

Xiao

et al. 2019

JAMDSM

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To solve the problems of small flow and low efficiency for a reciprocating piston pump, a new type of rotary piston pump, triangular rotor pump (TRP), is proposed. Its mechanical structure and working principles are introduced and a mathematical model of the key pump structure and the design requirements for the key sealed components are presented. Experiments involving different outlet sizes and shaft speeds are performed on the AB-1.25D-type TRP. Through Fluent numerical calculation, the fluid flow line, velocity vector, and pressure distribution inside the TRP are analyzed. The results show that, for outlet size a (b) and 190(160)-r/min speed, the pump flow rate reaches a maximum of 8.83 (7.34) m 3 /h, the shaft power is 5.2 (5.1) kW, and the total efficiency exceeds 72%(65.7%). The numerical calculation results show that four vortices appear in the working-chamber (W-C) for different working processes and areas. The W-C pressure first increases and then decreases, and the maximum pressure occurs at the beginning of the stable full-pressure state. The experimental results for the pressure coefficient, flow coefficient, and total efficiency agree well with the numerical results. The TRP exhibits good performance and can be used in deep mine drainage, long-distance pipeline transportation, and grouting.

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Modeling the Load of the Kinematic Pair Piston-cylinder in an Axial Piston Pump by Means of FEA

Cited by 4 publications

References 0 publications

Fault Diagnosis of Axial Piston Pump Based on Extreme‐Point Symmetric Mode Decomposition and Random Forests

Fault Diagnosis of Axial Piston Pump Based on Extreme‐Point Symmetric Mode Decomposition and Random Forests

The effect of dynamics of the swash plate–slippers–piston assembly on friction torques in bearings in compressor of cooling aggregate

Performance evaluation and flow analysis of two-cylinder triangular rotor pump based on experiment and numerical simulation

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