Analysis of Thermal Volumetric Effect on Machine Structure Using FEA Model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00386690" target="_blank" >RIV/68407700:21220/25:00386690 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.euspen.eu/precision-performance-2025-programme/" target="_blank" >https://www.euspen.eu/precision-performance-2025-programme/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of Thermal Volumetric Effect on Machine Structure Using FEA Model

Popis výsledku v původním jazyce

Thermally induced errors are the dominant source of machine tool (MT) inaccuracies and are often the most difficult types of errors to reduce. Software compensation of thermally induced displacements at the tool centre point (TCP) is a widely used technique to reduce these errors. An extensive set of measured data is necessary for calibration of these compensation models. For a compensation model valid across the entire workspace of a horizontal milling centre, many measurement points are typically needed, making experimental analysis costly and time-consuming. This paper presents an analysis of the thermal behaviour of a horizontal milling center using the finite element analysis (FEA) model without experiments at different positions of the Y and Z machine axes. The most significant thermal behaviour is observed when the Y-axis position is changed. Based on the simulation results, critical measurement points were identified to guide subsequent experiments and support the development of a compensation model. The proposed method reduces the number of necessary experiments, thereby shortening the time required for the experimental analysis of the thermal behaviour and lowering costs. In addition, the paper discusses alternative descriptions of spindle bearings as one of the main heat sources in the FEA model.

Název v anglickém jazyce

Analysis of Thermal Volumetric Effect on Machine Structure Using FEA Model

Popis výsledku anglicky

Thermally induced errors are the dominant source of machine tool (MT) inaccuracies and are often the most difficult types of errors to reduce. Software compensation of thermally induced displacements at the tool centre point (TCP) is a widely used technique to reduce these errors. An extensive set of measured data is necessary for calibration of these compensation models. For a compensation model valid across the entire workspace of a horizontal milling centre, many measurement points are typically needed, making experimental analysis costly and time-consuming. This paper presents an analysis of the thermal behaviour of a horizontal milling center using the finite element analysis (FEA) model without experiments at different positions of the Y and Z machine axes. The most significant thermal behaviour is observed when the Y-axis position is changed. Based on the simulation results, critical measurement points were identified to guide subsequent experiments and support the development of a compensation model. The proposed method reduces the number of necessary experiments, thereby shortening the time required for the experimental analysis of the thermal behaviour and lowering costs. In addition, the paper discusses alternative descriptions of spindle bearings as one of the main heat sources in the FEA model.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Precision and Performance 2025

ISBN

978-0-9957751-6-9

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

53-56

Název nakladatele

euspen

Místo vydání

Cranfield, Bedfordshire

Místo konání akce

Cranfield University

Datum konání akce

18. 11. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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