Challenges in design process of gear micropump from plastics

Rodionov, Leonid; Stryczek, J.; Rekadze, Pavel; Stryczek, Piotr; Gafurov, Salimzhan; Prokofiev, Andrey; Шахматов, Е. В.

doi:10.1007/s43452-020-00164-5

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…Less strength and greater elasticity leads to greater deformations. This was also confirmed in the case of such hydraulic elements made of plastics like gerotor pumps [8][9][10] or valves [11].…”

Section: Introductionmentioning

confidence: 54%

“…Through control of the hydraulic systems, the movement and loads of the tested cylinder were realized. Hydraulic parameters were measured using pressure transducers (7,8) and a flow rate meter. The movement of the piston rod was monitored using a displacement transducer (9) and the force on the piston rod using a sensor located in the connector (4).…”

Section: Research Stand and Methods Of Testingmentioning

confidence: 99%

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Research on Deformation of Hydraulic Cylinders Made of Plastics

Stryczek

2023

Energies

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The article presents an author’s approach to the study of the behavior of plastic hydraulic cylinder structures under load. Plastics as design materials, due to their different properties, behave differently from metals. So far, there is little information about hydraulic cylinders made of plastics. They are a technical novelty, and there are no established standards or research methods for them. The tests were carried out on the example of two models of different internal diameter, the smaller one being Ø30 mm and the larger one Ø50 mm. Information was gathered by FEM simulation tests and tests of real models on a special test stand. The simulation section presents geometric models, discrete models and assumed boundary conditions, as well as the results of the performed simulations. For tests of real models, a description of the stand with the measuring equipment used is presented, e.g., laser displacement sensors, as well as the method of conducting the tests and the results. Then, the results are analyzed and compared. Deformations of the examined structures are discussed, e.g., tube swelling or deflection, which seem to be characteristic for plastic cylinders. Finally, the possibility of using selected plastics for the design material of hydraulic cylinders and the suitability of the research method used are assessed.

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Section: Introductionmentioning

confidence: 54%

Section: Research Stand and Methods Of Testingmentioning

confidence: 99%

Research on Deformation of Hydraulic Cylinders Made of Plastics

Stryczek

2023

Energies

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“…Work is underway to reduce the size and weight of hydrostatic components [4] and systems. New rules for the design and operation of miniaturized systems, known as micro-hydraulic systems, are being developed [5].…”

Section: Introductionmentioning

confidence: 99%

Design and FEM Analysis of Plastic Parts of a Tie-Rod Composite Hydraulic Cylinder

LUBECKI,

STOSIAK,

KARPENKO

et al. 2023

mech

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Due to a number of advantages, such as a high ratio of power transmitted to the weight of the system, the possibility of easy control and the freedom to arrange system elements on the machine, hydrostatic drive is one of the most popular methods of machine drive. The executive elements in such a system are hydraulic cylinders that convert the energy of the pressure of the liquid into the mechanical energy of the reciprocating motion. One of the disadvantages of conventional actuators is their weight, so research is being done to make them as light as possible. The directions of this research include the use of modern engineering materials such as composites and plastics. The paper presents the process of designing, FEM analysis and experimental validation of the base and gland of a composite hydraulic cylinder. The considered elements are made of PET plastic. During the analysis, material non-linearity was taken into account, and the analysis itself was carried out in two steps. The first was the preloading of the tie-rods, and the second was the loading of the cylinder with internal pressure. The numerical calculations were experimentally validated by prototype tests with the use of strain gauges.

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“…The centrifugal pump implements the initial pressurization, while the gear pump provides high-pressure oil source for the combustor. The centrifugal pump and the gear pump share an integrated coaxial drive, greatly reducing the size and weight of the fuel pump [6] . The operating state of an aero-engine can vary significantly, encompassing multiple phases such as startup, idle, subsonic cruise and supersonic cruise [7] .…”

Section: Introductionmentioning

confidence: 99%

Higher-order Response Surface Method-based Optimization of Centrifugal Impeller of Combined Fuel Pump

Liu,

Zhong,

et al. 2023

Preprint

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A centrifugal-gear combined fuel pump is a new type of engine fuel pump, and the performance of the centrifugal stage is crucial for the reliable operation of the combined fuel pump. This paper presents a multi-objective optimization of the centrifugal impeller of a combined fuel pump using the higher-order response surface method and NSGA-II algorithm. First, a turbulence model used in numerical simulation is validated and established through a combination of physical test and simulation calculation. Second, the complexity of design parameters is reduced by the significance analysis of full factorial screening model, and the surrogate model of efficiency and head of centrifugal stage of combined fuel pump is constructed using Latin hypercube sampling and high-order response surface method. Finally, multi-objective optimization is performed via NSGA-II algorithm, and the optimization results are validated by numerical simulation. The research findings show that the blade angle at leading edge, blade angle at trailing edge and wrap angle determined by the significance analysis of the full factorial screening model have a significant influence on the efficiency response value and are therefore the key sensitive parameters for optimization. The surrogate model of head and efficiency constructed based on higher-order response surface method demonstrates high calculation accuracy, with sample standard deviations of 0.132 and 0.189 respectively. At the design point, the head and efficiency of the optimized centrifugal stage of the pump are increased by 2.25% and 2.54% respectively, and the internal flow becomes more even, and the adverse flow is significantly alleviated.

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Challenges in design process of gear micropump from plastics

Cited by 8 publications

References 21 publications

Research on Deformation of Hydraulic Cylinders Made of Plastics

Research on Deformation of Hydraulic Cylinders Made of Plastics

Design and FEM Analysis of Plastic Parts of a Tie-Rod Composite Hydraulic Cylinder

Higher-order Response Surface Method-based Optimization of Centrifugal Impeller of Combined Fuel Pump

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