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Wyszukujesz frazę "incompressible" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Oscillation systems from hyper-deforms elements
Autorzy:
Żach, P.
Powiązania:
https://bibliotekanauki.pl/articles/241526.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
elastomers
incompressible materials
oscillation
very large reversible deformation
Opis:
In construction of machines more and more often are used materials called hyper-elastic, for example: foam structures, materials based on natural and synthetic rubbers and other materials subjecting large deformations. The porous structures are produced on the basis of different synthetic materials, thermoplastic polymers and thermosetting. Subject of porous materials is studied by many scientists around the world. Porous materials (also called cellular plastics, foam plastics or foamed plastics) include gas phase dispersed in a solid phase of polymeric material. Properties of such systems depends on the properties of the polymer warp and cell structure, comprising the gas phase. Approach previously used to anticipate and interpreting the behaviour of the hyper-deformable structures, which use the theory of hyperelastic materials, does not resolve the issue because it only describes the elastic properties. The article presents an original methodology developed structural identification the viscoelastic properties of hyperdeformable materials, and in particular modern construction materials from the group of plastics and composites of elastomers, foams, etc. The aim of the article was an oscillation analysis in systems from elements of incompressible and the description of phenomena setting in during of work of suchlike systems.
Źródło:
Journal of KONES; 2015, 22, 4; 335-341
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hyperelastic polynomial models in plastics behaviour analyses
Autorzy:
Żach, P
Powiązania:
https://bibliotekanauki.pl/articles/246289.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
incompressible materials
elastomers
oscillation
very large reversible deformations
vibration
Opis:
The issue of vibration damping occurs in many mechanical problems in the operation of various devices, in the automotive industry engineering, aerospace. In the case where damping by selection of the masses and dimensions is not possible due to various reasons or for other reasons it was abandoned, vibration dampers are used. Minimization of adverse impact of dynamic interaction effects is an important research and technical problem. Passive energy absorbers used today (complex of bumpers, passenger lifts buffers typically allows to the safe dissipation of energy within a certain range of loads. In the case of high-impact loading variability is desirable to use an adaptive energy absorption system capable of rapid change their dynamic characteristics. The main issue in the analysis of interactions impact of dynamic loads on objects is dispersion (dissipation) of kinetic energy during impact. In constructions of polymer composite structures the sources of energy dissipation are: matrix of polystructural viscoelasticity, morphology of material, defect of structure, thermoplastic and viscoplastic dumping. In construction of machines more and more often be practical used materials name hyper-elastic. To description of elastic proprieties it’s possible to use the worked out theories well in which the most important they are the multinomial models and them special coincidence: Mooney’s – Rivlin’s, Yeoh’s. In this paper, is presented numerical behaviour analyses materials with large deformation.
Źródło:
Journal of KONES; 2013, 20, 1; 381-386
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The hyperdeform materials in systems of vibrations machines
Autorzy:
Żach, P.
Powiązania:
https://bibliotekanauki.pl/articles/246701.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
incompressible materials
elastomers
oscillation
very large reversible deformations
vibration
Opis:
In construction of machines more and more often be practical used materials name hyper-elastic for example: foamy structures, materials of base natural and synthetic rubbers and another of large reversible deformations. To description of elastic proprieties, it is possible to use the worked out theories well in which the most important they are the multinomial models and them special coincidence: Mooney-Rivlin, Yeoh and Ogden. Precise description propriety in questions dissipation the energy, dumping of vibration is a fault currently. The aim of the article is the analysis oscillation in systems from elements of incompressible and the description of phenomena setting during of work of such like systems. In this paper, is presented built methodology of elasticity propriety materials with large deformation. An assumption is a dissipation function we have present in analogous figure to elasticity function, well known with theory of hyperelastic materials. A description of model of internal damping was proposed with the proof the influence of component part of polynomial: figure and volumetric. The numeric permissive on comparison of received conception of description of hyperelastic material worked out in support about theoretical foundations with results of experimental investigations analyses' be become executed.
Źródło:
Journal of KONES; 2012, 19, 2; 587-590
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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