Results 71 to 80 of about 1,892,423 (234)

Integrative BNN-LHS Surrogate Modeling and Thermo-Mechanical-EM Analysis for Enhanced Characterization of High-Frequency Low-Pass Filters in COMSOL

Micromachines
This paper pioneers a novel approach in electromagnetic (EM) system analysis by synergistically combining Bayesian Neural Networks (BNNs) informed by Latin Hypercube Sampling (LHS) with advanced thermal–mechanical surrogate modeling within COMSOL ...
Jorge Davalos-Guzman, Jose L. Chavez-Hurtado, Zabdiel Brito-Brito   +2 more
doaj   +1 more source

Study on Temperature Measurement Point Optimization and Thermal Error Modeling of NC Machine Tools

, 2017
Background: In precision machining, thermal error is the main source of machine tool error. And thermal error compensation is an effective method to reduce thermal error.
Shuo Fan, Qianjian Guo
core   +1 more source

Analysis of the Temperature Field Characteristics and Thermal-Induced Errors of Miniature Interferometric Fiber Optic Gyroscopes in a Vacuum Environment

Photonics
This paper investigates the mechanism of thermal-induced errors in interferometric fiber optic gyroscopes (IFOGs) caused by temperature changes in a vacuum environment, proposing a method for calculating thermal-induced errors in small fiber coils ...
Zicheng Wang, Xiuwei Xia, Wei Gao, Xiangjun Zhang   +3 more
doaj   +1 more source

Gray System Theory-based Thermal Error Modeling and Application of Precision Machine Tool

Chemical Engineering Transactions, 2018
In this paper, the author applies the gray system theory to build the thermal error model and analyze thermal error of precision machine tools. This paper mainly applies the gray system theory, cutting processing experiment and analysis of guide rail ...
Hongmei Li, Honghua Liu
doaj   +1 more source

Application of multi sensor data fusion based on Principal Component Analysis and Artificial Neural Network for machine tool thermal monitoring

, 2015
Due to the various heat sources on a machine tool, there exists a complex temperature distribution across its structure. This causes an inherent thermal hysteresis which is undesirable as it affects the systematic tool –to-workpiece positioning ...
Potdar, Akshay A., Longstaff, Andrew P., Fletcher, Simon, Mian, Naeem S., Potdar, Akshay   +4 more
core  

Variable-weight Combination Prediction of Thermal Error Modeling on CNC Machine Tools

, 2014
Due to the thermal error modeling of CNC machine tools has characters of small sample and discrete data, the variable-weight combined modeling method was presented by integrating time series analysis and least squares support vector machines.
Feng, Zhiming, Yin, Guofu
core   +1 more source

Multi-verse optimizer for thermal error modeling approach of spindle system based on thermal image

Advances in Mechanical Engineering
Since the spindle thermal error of CNC machine tools has a significant impact on machining precision, this paper introduces a unique approach for modeling spindle thermal error. Several key steps are involved in the proposed approach.
Yue Han, Xiaolei Deng, Yushen Chen, Chengzhi Fang, Wanjun Zhang, Yong Chen, Jianchen Wang   +6 more
doaj   +1 more source

Machine Tool Spindle Temperature Field Parametric Modeling and Thermal Error Compensation

Lubricants
The development of modern machining and manufacturing industry puts forward higher requirements for the machining accuracy of machine tools. The thermal error of the machine tool spindle directly affects the accuracy of the machined workpiece. To improve
Geng Chen, Lin Yuan, Hui Chen, Chengliang Dou, Guangyong Ma, Shuai Li, Lai Hu   +6 more
doaj   +1 more source

Application of a Bayesian Network to Thermal Error Modeling and Analysis for Machine Tool

, 2010
CNC machine tool dynamic thermal error compensation has always been a hot issue to improving precision. This dissertation proposes a method of machine tool thermal error modeling during processing, based on Bayesian network theory, by describing the ...
Z.H. Li, X. Li, Q. Lei
core   +1 more source

Deep Learning Prediction for Thermal Error of CNC Machine Tools Based on Attention Mechanism

工程科学与技术, 2021
Thermal error prediction and compensation of CNC machine tools is an important technology to improve the machining accuracy and reliability of CNC machine tools. The thermal error of machine tool is time-varying and nonlinear. To improve the accuracy and
Liuqing DU, Renjie LI, Baochuan LI
doaj