MODAL ANALYSIS OF HYBRID ‘STEEL–COMPOSITE’ DISC OF THE INDEXING GEARBOX TURRET FOLLOWER

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MODAL ANALYSIS OF HYBRID ‘STEEL–COMPOSITE’ DISC OF THE INDEXING GEARBOX TURRET FOLLOWER

Popis výsledku v původním jazyce

The indexing gearbox is used in dynamic applications. To improve its dynamic performance, the hybrid indexing gearbox turret follower disc consisting of a composite body with the steel inserts for pins and a steel shaft flange has been introduced. Such a hybrid disc composite body is made of long-fiber epoxy composite using fiber in place (FIP) technology. That allows integration of inserts into the part during the lamination process. Newly designed hybrid discs have undergone modal analysis in this work to determine their natural frequencies and assess their dependency on composite fiber volume ratio. Results of modal analysis show that 35 % of fiber volume ratio is the limiting value under which natural frequencies of FIP hybrid disc are lower than frequencies of steel disc. The first two modes have similar frequencies which can lead to their superposition. Typical values of 50 % of fiber volume ratio FIP composite shows 11 % increase of frequencies in comparison with steel disc and these frequency values are out of operating frequency range. FIP technology is suitable for hybrid “steel-composite” disc in turret follower application as it contributes to improvement of dynamic performance of the mechanism or its individual parts.

Název v anglickém jazyce

MODAL ANALYSIS OF HYBRID ‘STEEL–COMPOSITE’ DISC OF THE INDEXING GEARBOX TURRET FOLLOWER

Popis výsledku anglicky

The indexing gearbox is used in dynamic applications. To improve its dynamic performance, the hybrid indexing gearbox turret follower disc consisting of a composite body with the steel inserts for pins and a steel shaft flange has been introduced. Such a hybrid disc composite body is made of long-fiber epoxy composite using fiber in place (FIP) technology. That allows integration of inserts into the part during the lamination process. Newly designed hybrid discs have undergone modal analysis in this work to determine their natural frequencies and assess their dependency on composite fiber volume ratio. Results of modal analysis show that 35 % of fiber volume ratio is the limiting value under which natural frequencies of FIP hybrid disc are lower than frequencies of steel disc. The first two modes have similar frequencies which can lead to their superposition. Typical values of 50 % of fiber volume ratio FIP composite shows 11 % increase of frequencies in comparison with steel disc and these frequency values are out of operating frequency range. FIP technology is suitable for hybrid “steel-composite” disc in turret follower application as it contributes to improvement of dynamic performance of the mechanism or its individual parts.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

31st International Conference ENGINEERING MECHANICS 2025

ISBN

978-80-86246-99-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

221-224

Název nakladatele

Institute of Theoretical and Applied Mechanics, Czech Academy of Sciences

Místo vydání

Praha

Místo konání akce

Medlov, Česká republika

Datum konání akce

1. 1. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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