Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor

Remzija Cerimagic, Per Johansen, Torben Ole Andersen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

In recent times the radial piston principle has been found particularly suitable for hydrostatic fluid power transmission systems for renewable energy applications. This forms an incentive to design these units for high efficiency. At present only little work has been dedicated to modeling of losses in radial piston units. The focus of this paper is an isogeometric tribodynamics model of a radial piston fluid power motor, which connects the rigid body dynamics with the models of hydrodynamic lubrication pressure in the sliding parts. The use of CAD models in the formulation of the tribodynamics eliminates the time and effort needed to manually parameterize the interface geometry. A NURBS-based isogeometric analysis approach is considered for the modeling of pressure dynamics of the fluid film lubrication. Isogeometric analysis is considered superior in terms of accuracy and efficiency compared to standard finite element methods, as it needs lesser degrees of freedom to produce same order of error. Moreover, it renders an exact representation of the lubrication domains in fluid power machinery possible. This makes isogeometric analysis very much convenient for boundary value problems on surfaces, such as hydrodynamic lubrication in joint clearances of fluid power machines. The paper explains the isogeometric tribodynamics model structure and gives a detailed description of the modeling of the piston-cylinder interface of a Calzoni type radial piston motor using the isogeometric approach.
Original languageEnglish
Title of host publicationProceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018
Number of pages7
PublisherIEEE Press
Publication dateJul 2018
Pages1-7
Article number8472376
ISBN (Print)978-1-5386-4786-8
ISBN (Electronic)978-1-5386-4785-1
DOIs
Publication statusPublished - Jul 2018
Event2018 Global Fluid Power Society PhD Symposium, GFPS 2018 - Samara, Russian Federation
Duration: 18 Jul 201820 Jul 2018

Conference

Conference2018 Global Fluid Power Society PhD Symposium, GFPS 2018
CountryRussian Federation
CitySamara
Period18/07/201820/07/2018

Fingerprint

Pistons
Lubrication
Fluids
Hydrodynamics
Engine cylinders
Model structures
Power transmission
Boundary value problems
Machinery
Computer aided design
Finite element method
Geometry

Cite this

Cerimagic, R., Johansen, P., & Andersen, T. O. (2018). Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor. In Proceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018 (pp. 1-7). [8472376] IEEE Press. https://doi.org/10.1109/GFPS.2018.8472376
Cerimagic, Remzija ; Johansen, Per ; Andersen, Torben Ole. / Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor. Proceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018. IEEE Press, 2018. pp. 1-7
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Cerimagic, R, Johansen, P & Andersen, TO 2018, Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor. in Proceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018., 8472376, IEEE Press, pp. 1-7, 2018 Global Fluid Power Society PhD Symposium, GFPS 2018, Samara, Russian Federation, 18/07/2018. https://doi.org/10.1109/GFPS.2018.8472376

Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor. / Cerimagic, Remzija; Johansen, Per; Andersen, Torben Ole.

Proceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018. IEEE Press, 2018. p. 1-7 8472376.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Cerimagic R, Johansen P, Andersen TO. Isogeometric Tribodynamics of a Radial Piston Fluid Power Motor. In Proceedings of the 2018 Global Fluid Power Society PhD Symposium, GFPS 2018. IEEE Press. 2018. p. 1-7. 8472376 https://doi.org/10.1109/GFPS.2018.8472376