Results 41 to 50 of about 7,429 (251)

A Review on Real-Time Simulation of CNC Machine Tool Dynamics [PDF]

open access: yes, 2013
This paper is an endeavour to critically appraise the existing methods used for real-time simulation of machine tool dynamics with the emphasis on modelling and simulation of the dynamic behaviour of CNC machine tool feed drives and mechatronic systems ...
Pislaru, Crinela
core  

Modeling of CNC machine tools’ spatial geometric error based on two-dimensional angle error

open access: yesSN Applied Sciences, 2022
A modeling method of CNC machine tools’ spatial geometric error is proposed based on two-dimensional angle error in this paper. Different from traditional modeling method, this method takes into account the effect of additional angle errors because the ...
Xiuqin Zhang   +5 more
doaj   +1 more source

Double‐Interpenetrating Composite Bioink for Multi‐Component 3D Bioprinting and Biofabrication

open access: yesAdvanced Functional Materials, EarlyView.
Marine‐polysaccharides‐derived double interpenetrating network hydrogel‐based bioink, combining the attributes of physical and ionic crosslinking, enables room‐temperature bioprinting of mechanically defined structures that can be handled and are cytocompatible.
Fabian Tribukait‐Riemenschneider   +1 more
wiley   +1 more source

An Accessible Microfluidic Platform for the Generation of Polarized Brain Organoids

open access: yesAdvanced Materials Technologies, EarlyView.
This study presents an accessible double‐gradient microfluidic device that enables controlled morphogen delivery and spatially polarized differentiation in brain organoids. By integrating a pump‐free design and stable fabrication method, the platform generates dorsal–ventral neuronal asymmetry, offering a reproducible and versatile approach to model ...
Daniel Pérez‐Calixto   +6 more
wiley   +1 more source

Application of GNNMCI(1, N) to environmental thermal error modelling of CNC machine tools [PDF]

open access: yes, 2013
Thermal errors are often quoted as being the largest contributor to inaccuracy of CNC machine tools, but they can be effectively reduced using error compensation.
Longstaff, Andrew P.   +3 more
core  

Digital Twin Model Construction of CNC Machine Tools for Service Performance

open access: yesJournal of Harbin University of Science and Technology
CNC machine tools are key core equipment that are urgently needed for manufacturing. In recent years, the factory performance of high-end CNC machine tools in China has been significantly improved, but the lack of service performance such as accuracy ...
LI Yilin   +3 more
doaj   +1 more source

Study on Thermal Error Modeling for CNC Machine Tools Based on the Improved Radial Basis Function Neural Network

open access: yesApplied Sciences, 2023
The thermal error modeling technology of computer numerical control (CNC) machine tools is the core of thermal error compensation, and the machining accuracy of CNC machine tools can be improved effectively by the high-precision prediction model of ...
Zhiming Feng   +4 more
doaj   +1 more source

Solid Particle‐Liquid Metal Mixtures for Robust High‐Current Interconnects in Stretchable Electronics and Soft Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
Metallic microparticles dispersed in liquid metal interconnects mitigate electromigration‐induced failure by reconfiguring internal current density distributions. These fillers facilitate the growth of a robust, protective gallium oxide shell at elevated temperatures, shifting the failure threshold toward a thermal limit.
Ethan J. Krings   +6 more
wiley   +1 more source

A particle swarm optimisation-based Grey prediction model for thermal error compensation on CNC machine tools [PDF]

open access: yes, 2015
Thermal errors can have a significant effect on CNC machine tool accuracy. The thermal error compensation system has become a cost-effective method of improving machine tool accuracy in recent years.
Longstaff, Andrew P.   +3 more
core  

Vibration Characteristics of Heavy-Duty CNC Machine Tool-Foundation Systems

open access: yesShock and Vibration, 2018
Vibration characteristics of heavy CNC machine tools are directly affected by their foundations. To analyze vibrations of heavy CNC machine tools caused by internal and external loads, a system dynamics model of a rigid-flexible coupled heavy-duty CNC ...
Yang Tian   +3 more
doaj   +1 more source

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