Adaptive Thermal Error Compensation Model of a Horizontal Machining Centre
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00366589" target="_blank" >RIV/68407700:21220/23:00366589 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/978-3-031-34486-2_7" target="_blank" >https://doi.org/10.1007/978-3-031-34486-2_7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-031-34486-2_7" target="_blank" >10.1007/978-3-031-34486-2_7</a>
Alternative languages
Result language
angličtina
Original language name
Adaptive Thermal Error Compensation Model of a Horizontal Machining Centre
Original language description
The state-of-the-art method to reduceCNCmachine tool thermal errors is real-time error compensation based on the thermal error estimation models. However, it is difficult to establish a thermal error compensation model with good versatility, high accuracy, and strong robustness due to various manufacturing conditions and a thermally varying surrounding environment. It causes that thermal behaviour of themachine tools is nonlinear and varying in real time. Consequently, the pre-trained and non-adaptive model may not be accurate and robust enough for long-term application. The presented research shows a systematic adaptation technique to update the thermal error compensation model of a horizontal machining centre under varying conditions, which differ from the calibration test. System identification theory is applied to build a dynamic thermal error model for a horizontal machining centre based on calibration test. Linear parametric models of autoregressive with external input (ARX) present an established dynamic method, and its modelling and calculation speed are suitable for real-time applications. Additionally, process-intermittent probing and thermal error model are integrated into the machine management software of the horizontal machining centre to monitor and compensate for thermal errors at the tool centre point (TCP) in real time using C#/C++ programming language. The results show that the prediction accuracy measured as peak-to-peak values and the normalized root mean squared error of the thermal error compensation models are improved by up to 33% and 51%, respectively, when adaptive compensation model is applied.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF16_026%2F0008404" target="_blank" >EF16_026/0008404: Machine Tools and Precision Engineering</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
3rd International Conference on Thermal Issues in Machine Tools (ICTIMT2023)
ISBN
978-3-031-34485-5
ISSN
2194-0525
e-ISSN
2194-0533
Number of pages
16
Pages from-to
83-98
Publisher name
Springer
Place of publication
Cham
Event location
Drážďany
Event date
Mar 21, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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