Results 11 to 20 of about 59,853 (261)

Thermal error modelling for real-time error compensation [PDF]

The International Journal of Advanced Manufacturing Technology, 1996
A modelling strategy for the prediction of both the scalar and the position-dependent thermal error components is presented. Two types of empirical modelling method based on the multiple regression analysis (MRA) and the artificial neural network (ANN) have been proposed for the reaLtime prediction of thermal errors with multiple temperature ...
Chen, J. S., Yuan, J., Ni, Jun
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Study of Error Propagation in the Transformations of Dynamic Thermal Models of Buildings [PDF]

Journal of Control Science and Engineering, 2017
Dynamic behaviour of a system may be described by models with different forms: thermal (RC) networks, state-space representations, transfer functions, and ARX models. These models, which describe the same process, are used in the design, simulation, optimal predictive control, parameter identification, fault detection and diagnosis, and so on.
Loïc Raillon, Christian Ghiaus
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A review on transfer learning in spindle thermal error compensation of spindle [PDF]

Advanced Manufacturing
Data-driven approaches offer unprecedented opportunities for smart manufacturing to facilitate the transition to Industry 4.0-based production. One of the key factors affecting the accuracy of machine tools is the thermal error caused by thermal ...
Yue Zheng, Guoqiang Fu, Sen Mu, Sipei Zhu, Kunlong Lin, Long Yang   +5 more
doaj   +1 more source

ASSESSING GEO-TYPICAL TECHNIQUES FOR MODELING BUILDINGS USING THERMAL SIMULATIONS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Building modeling from remote sensing data is essential for creating accurate 3D and 4D digital twins, especially for temperature modeling. In order to represent buildings as gap-free, visually appealing, and rich in details models, geo-typical ...
D. Bulatov, B. Kottler, E. Strauss, G. Häufel, M. May, P. Helmholz, F. Mancini   +6 more
doaj   +1 more source

Application of Grey System Model to Thermal Error Modeling on Machine Tools [PDF]

, 2006
The basic principle and method of grey system model and its application in thermal error modeling on machine tools has been presented. How to utilize thermal error sequence surveyed to model and predict is discussed by adopting total data GM (1,1) model, new information GM(1,1) model and metabolic GM(1,1) model after function transform is brought ...
Yongxiang Li, Jianguo Yang, Hongtao Zhang, Hengchao Tong   +3 more
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Measurement and Modeling of Spindle Thermal Error of Fiveaxis CNC Machine Tool with Double Turntable

Journal of Harbin University of Science and Technology, 2019
In order to measure the thermal error of the spindle in the actual cutting process of CNC machine tools and optimize the output of the thermal error model, a method of measuring the thermal error of the spindle of machine tools by using the thermal test ...
LIU Xianli, SONG Houwang, WU Shi, YUE Caixu, Steven Y.Liang, LI Rongyi   +5 more
doaj   +1 more source

Thermal Error Model of Linear Motor Feed System Based on Bayesian Neural Network

IEEE Access, 2021
The linear motor feed system has been in service in complex working conditions for a long time, thus causing the nonuniform distribution of the temperature field distribution.
Shengsen Liu, Zeqing Yang, Qiang Wei, Yingshu Chen, Libing Liu   +4 more
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Thermal Error Modeling for Machine Tools: Mechanistic Analysis and Solution for the Pseudocorrelation of Temperature-Sensitive Points

IEEE Access, 2020
The temperature-sensitive point is the input variable of the thermal error compensation model of computer numerical control (CNC) machine tools. At present, the most commonly used selection method is to measure the multipoint temperature and thermal ...
Hui Liu, Enming Miao, Liyin Zhang, Long Li, Yinlong Hou, Dafeng Tang   +5 more
doaj   +1 more source

Macro Modeling of V-Shaped Electro-Thermal MEMS Actuator with Human Error Factor

Micromachines, 2021
The V-shaped electro-thermal MEMS actuator model, with the human error factor taken into account, is presented in this paper through the cascading ANSYS simulation model and the Fuzzy mathematics calculation model. The Fuzzy mathematics calculation model
Dongpeng Zhang, Anjiang Cai, Yulong Zhao, Tengjiang Hu   +3 more
doaj   +1 more source

EFFECTS OF COOLING SYSTEMS ON THE THERMAL BEHAVIOUR OF MACHINE TOOLS AND THERMAL ERROR MODELS

Journal of Machine Engineering, 2020
Today, cooling systems are increasingly applied to the structure of machine tools (MT). Unfortunately, to date there have been few efforts to precisely control these cooling systems, which inhibits the full utilisation of their potential to improve MT thermal behaviour (to reduce thermal errors). Moreover, the effects of cooling systems, especially the
Otakar Horejš, Martin Mareš, Štěpán Fiala, Lukáš Havlík, Petr Stříteský   +4 more
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