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Metody wyznaczania modułu Younga dla materiałów elastomerowych

Bednarz J., Bieleń P.

Autobusy : technika, eksploatacja, systemy transportowe

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2017

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R. 18, nr 6

513--517, CD

PL

Prawidłowy dobór materiałów elastomerowych mogących mieć zastosowanie w systemach wibroizolacji wymaga wyznaczenia wartości parametrów fizyko-mechanicznych materiału. Podstawową wyznaczaną wielkością jest moduł Younga będący miarą sprężystości materiału elastomerowego. W artykule przedstawiono porównanie metod wyznaczania modułu Younga dla próbek materiału elastomerowego. Przedstawiono metodykę badań oraz ich wyniki.

EN

Proper selection of elastomeric materials that may be used in vibration isolation systems requires the determination of the physico-mechanical parameters of the material. The basic determinant is the Young's modulus, which is the measure the elasticity of the elastomeric material. The article presents a comparison of methods for determining Young's modulus for samples of elastomeric material. The research methodology and results are presented.

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Badania własności wibroizolatorów z elementami magnetycznymi

Targosz J., Bednarz J.

Autobusy : technika, eksploatacja, systemy transportowe

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2017

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R. 18, nr 12

1333--1336, CD

PL

Praca dotyczy problemu wyznaczania wartości modułu Younga elementów elastycznych mogących mieć zastosowanie w układach wibroizolacji. W artykule przedstawiono opis dwóch metod pozwalających na wyznaczenie wartości modułu Younga materiałów elastomerowych oraz wstępne wyniki badań eksperymentalnych semi-aktywnego elementu wibroizolującego będącego w tym przypadku złożeniem elastomeru ze stałym magnesem neodymowym.

EN

The work concerns the problem of determining the value of Young's modulus of elastic elements that can be used in vibration isolation systems. The article describes two methods to determine the value of Young's modulus of elastomeric materials and the preliminary results of experimental research of the semi-active vibroisolating element, which is an elastomeric material with a permanent neodymium magnet.

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The New Methodology for Assessing of the Applicability of Elastomeric Materials in the Vibration Isolation Systems of Railway Lines

Bednarz J.

Archives of Acoustics

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2016

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Vol. 41, No. 3

573--578

EN

The technical requirements for the determination of physical parameters of vibration isolating material have not been standardized in Europe and Poland yet, which significantly hinders the ability to compare vibration isolating materials offered on the market. Therefore, there is a need for establishing a norm that could be applied both for the determination of the physico-mechanical properties of elastic vibration isolation elements in rail transport for domestic and foreign producers as well as in their selection for application in a specific vibration isolation system. The paper presents a proposal to standardize the methodology of the estimation of vibration isolation materials physical parameters authorized for use in vibration isolation systems used in rail transport. Methodology for measuring the physico-mechanical parameters of vibration isolating material presented in the paper forms uniform test procedure developed based on a fragmentary norms for flexible materials testing. The use of the proposed research methodology enables the creation of a unified database of elastic materials which parameters will be easy to compare, and choice between them will become easier for designers of vibration isolation systems used in rail transport.

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The examination of elastomeric materials used in vibroisolation and soundproof isolation systems in structural engineering

Bednarz J., Targosz J.

Journal of KONES

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2013

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Vol. 20, No. 4

23--30

EN

Solution of the problem of limiting the spread of the dynamic and acoustic emissions from rail and road traffic requires application of new elastomeric materials are characterized by both high acoustic insulation as well as being part of vibroisolation system between the source of vibration associated with the movement of vehicles and construction engineering structure.In the new solutions of vibro- and sound-proof, isolation based on the new elastomer materials should be taken into account a strong correlation between physico-mechanical properties of these material and the values of static and dynamic load, which effect on these materials. Another problem, which is associated with the use of elastomer materials, is the influence of the volume of used item on their physico-mechanical parameters. Therefore, the use of elastomer materials in vibro- and sound-proof isolation systems requires at the stage of selecting of materials a number of studies that will allows specifying the properties of materials for a specific application. A properly conducted process of selection of materials will help to achieve the desired effect, which is to build a well-functioning vibro- and sound-proof isolation system. Without a properly conducted process of selection of materials can be achieved counterproductive result. In the paper, the results of experimental studies carried out to determine the physicomechanical elastomer material that could be used as a flexible bearing in structural engineering constructions are presented. Flexible nodes bearing can be classified as the latest generation of vibroisolation systems. The studies were also performed to assess the possibility of using such materials in sound-proof isolation in concert halls and conference rooms. In the paper, the new methodology of assessment of physico-mechanical elastomer materials that could be a standard for the design of vibro- and sound-proof isolation systems and based on such materials in the newly designed civil engineering structures.

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Inteligentne materiały elastomerowe o właściwościach magnetycznych

Masłowski M., Zaborski M.

Przemysł Chemiczny

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2011

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T. 90, nr 3

466-469