New method of complex modulus estimation of prepressed rubber by the FE model parameter tuning ? rubber-damped wheel application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00452537" target="_blank" >RIV/61388998:_____/15:00452537 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

New method of complex modulus estimation of prepressed rubber by the FE model parameter tuning ? rubber-damped wheel application

Popis výsledku v původním jazyce

The main goal of the study was to develop a method for estimation of the frequency dependence of material constants of the pre-pressed hard synthetic rubbers. It was motivated the need to identify material constants, i.e. Young modulus and loss factor, of rubber segments pressed between the disk and the rim of a rubber-damped railway wheel. The rubber segments are pre-pressed about 20% strain level during the production of the wheel. Hard synthetic rubber materials exhibit complex thermalfrequency behavior with nonlinear dependence on static preload. The standard experimental procedures that evaluate the frequency dependence of the material are based on the vibrations of a cantilever beam that consists of a metal and a rubber layer. The new estimationmethod of the complex modulus of elasticity of rubber is based on the tuning of rubber constants of an FE wheel model according to the results of natural frequencies and mode shapes of the wheel ascertained from the experiment. Numerical

Název v anglickém jazyce

New method of complex modulus estimation of prepressed rubber by the FE model parameter tuning ? rubber-damped wheel application

Popis výsledku anglicky

The main goal of the study was to develop a method for estimation of the frequency dependence of material constants of the pre-pressed hard synthetic rubbers. It was motivated the need to identify material constants, i.e. Young modulus and loss factor, of rubber segments pressed between the disk and the rim of a rubber-damped railway wheel. The rubber segments are pre-pressed about 20% strain level during the production of the wheel. Hard synthetic rubber materials exhibit complex thermalfrequency behavior with nonlinear dependence on static preload. The standard experimental procedures that evaluate the frequency dependence of the material are based on the vibrations of a cantilever beam that consists of a metal and a rubber layer. The new estimationmethod of the complex modulus of elasticity of rubber is based on the tuning of rubber constants of an FE wheel model according to the results of natural frequencies and mode shapes of the wheel ascertained from the experiment. Numerical

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Výpočty konstrukcí metodou konečných prvků 2015

ISBN

978-80-87012-56-7

ISSN

—

e-ISSN

—

Počet stran výsledku

2

Strana od-do

67-68

Název nakladatele

Ústav termomechaniky AV ČR, v. v. i

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

26. 11. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—