Influence of bearing kinematics hypotheses on ball bearing heat generation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00329341" target="_blank" >RIV/68407700:21220/18:00329341 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/10467/87393" target="_blank" >http://hdl.handle.net/10467/87393</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.procir.2018.08.192" target="_blank" >10.1016/j.procir.2018.08.192</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of bearing kinematics hypotheses on ball bearing heat generation

Popis výsledku v původním jazyce

Spindle dynamics is a key issue in machining. Thermo-mechanical models of spindle need to be developed to understand and predict the complex behavior of spindles at high speed. Accurate bearing stiffness model is required, since it is a boundary condition of the shaft. Besides, bearings also play an important role in heat generation in the spindle. Bearing models rely on kinematics hypotheses at the ball-race contacts. The aim of the paper is to study the influence of these kinematics hypotheses on bearing heat generation. The different kinematics hypotheses that can be found in literature are presented and implemented into the bearing friction model. Simulations of bearing dynamics are performed and contact force and torque at ball-race contacts are compared. Behavior of the bearing models with different kinematic models is studied using a coupled thermo-mechanical model of a specialized test bed. Loss torque and temperatures simulated are compared and validated by experiments.

Název v anglickém jazyce

Influence of bearing kinematics hypotheses on ball bearing heat generation

Popis výsledku anglicky

Spindle dynamics is a key issue in machining. Thermo-mechanical models of spindle need to be developed to understand and predict the complex behavior of spindles at high speed. Accurate bearing stiffness model is required, since it is a boundary condition of the shaft. Besides, bearings also play an important role in heat generation in the spindle. Bearing models rely on kinematics hypotheses at the ball-race contacts. The aim of the paper is to study the influence of these kinematics hypotheses on bearing heat generation. The different kinematics hypotheses that can be found in literature are presented and implemented into the bearing friction model. Simulations of bearing dynamics are performed and contact force and torque at ball-race contacts are compared. Behavior of the bearing models with different kinematic models is studied using a coupled thermo-mechanical model of a specialized test bed. Loss torque and temperatures simulated are compared and validated by experiments.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

8th CIRP Conference on High Performance Cutting

ISBN

—

ISSN

2212-8271

e-ISSN

2212-8271

Počet stran výsledku

4

Strana od-do

622-625

Název nakladatele

Elsevier B.V.

Místo vydání

Amsterdam

Místo konání akce

Budapest

Datum konání akce

25. 6. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000552737300152