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Research on optimization of temperature sensitive points of machine tool thermal error based on independent variable selection criteria [PDF]
Scientific ReportsIn order to improve the prediction accuracy and robustness of the machine tool thermal error model, a method to select temperature sensitive points of the machine tool thermal error model based on independent variable selection criteria is proposed ...
Huadong Li, Jingjun Liu, Yang Li
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Correlation Stability Problem in Selecting Temperature-Sensitive Points of CNC Machine Tools [PDF]
Machines, 2022 In the thermal-error compensation of CNC machine tools, temperature-sensitive points (TSPs) are used for predicting thermal error and need to have a high correlation with the thermal error.
Hui Liu +4 more
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Machines, 2023 The heat generated by motors and bearings of machine tools has a significant impact on machining accuracy. Error modeling and compensation has proven to be effective ways to reduce thermal errors and improve accuracy.
Hu Shi +4 more
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Thermal Error Modeling for Machine Tools: Mechanistic Analysis and Solution for the Pseudocorrelation of Temperature-Sensitive Points [PDF]
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 +5 more
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Machines, 2022 The thermal error of CNC machine tools can be reduced by compensation, where a thermal error model is required to provide compensation values. The thermal error model adaptive update method can correct the thermal error model by supplementing new data ...
Hui Liu +4 more
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Identification and optimal selection of temperature-sensitive measuring points of thermal error compensation on a heavy-duty machine tool [PDF]
International Journal of Advanced Manufacturing Technology, 2015 Thermal error compensation is considered as an effective and economic method to improve the machining accuracy for a machine tool. The performance of thermal error prediction mainly depends on the accuracy and robustness of predictive model and the input temperature variables.
Junwei Yan, D T Pham, Zude Zhou
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Bayesian-optimized GRU network modeling for thermal error compensation in gantry guideway grinder spindle [PDF]
Scientific ReportsThis study establishes a Bayesian-optimized gated recurrent unit (BO-GRU) thermal error prediction architecture, aiming to quantitatively characterize the nonlinear mapping mechanism between the thermal behavior of the gantry guideway grinder spindle and
Shengshuo Zhu +5 more
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Precision Engineering, 2022 Abstract Thermal error compensation is a simple and efficient method to reduce thermal errors of machine tools, and the compensation effect largely depends on the temperature-sensitive points screened for the thermal error modeling. In this paper, 5 spindle heating experiments are carried out, and a new temperature-sensitive point screening method ...
Zheyu Li
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A Single Point Mutation, Asn16→Lys, Dictates the Temperature-Sensitivity of the Reovirus tsG453 Mutant [PDF]
Viruses, 2021 Studies of conditionally lethal mutants can help delineate the structure-function relationships of biomolecules. Temperature-sensitive (ts) mammalian reovirus (MRV) mutants were isolated and characterized many years ago. Two of the most well-defined MRV ts mutants are tsC447, which contains mutations in the S2 gene encoding viral core protein σ2, and ...
Kathleen K. M. Glover +3 more
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Machines, 2021 High-speed motorized spindle heating will produce thermal error, which is an important factor affecting the machining accuracy of machine tools. The thermal error model of high-speed motorized spindles can compensate for thermal error and improve ...
Zhaolong Li +5 more
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