Results 21 to 30 of about 2,121 (215)

A Corrected Adaptive Balancing Approach of Motorized Spindle Considering Air Gap Unbalance

open access: yesApplied Sciences, 2020
Motorized spindles widely used for high-speed precision machine tools are very sensitive to the mass unbalance of rotors; thus, their balancing problem is always a research hotspot.
Hongwei Fan   +5 more
doaj   +1 more source

A Review of Key Technologies for High-Speed Motorized Spindles of CNC Machine Tools

open access: yesMachines, 2022
The high-speed and high-precision motorized spindle is the future development trend of the CNC machine tool field, and has become the focus of research in the world.
Ye Dai   +5 more
doaj   +1 more source

Features and Characteristics of Motorized and Non Motorized Milling Spindles

open access: yesInternational Journal of Engineering and Advanced Technology, 2020
The Cutting process used in milling is one of the most common type of industrial machining methods. Similar to traditional milling spindles, the motor driven spindles are fitted with an integrated motor, thereby eliminating belts and gears for the transmission of power from the motor to the cutting tools.
Anandkumar, Sachhidanand Reur
openaire   +2 more sources

ResearchProgressonThermalErrorCompensationandStructuralOptimizationofHigh-SpeedMotorizedSpindle

open access: yesJournal of Harbin University of Science and Technology, 2023
Thermal displacement control of motorized spindles is one of the key problems in the machining process. Control thermal displacement of the motorized spindle to improve machining accuracy and surface quality. One of the common methods is to reduce the
LI Zhao long, ZHU Wen ming
doaj   +1 more source

SnapShot: Motor Proteins in Spindle Assembly

open access: yesCell, 2008
Klp59C (fly)MCAK (frog, human)MONOPOLAR SPINDLEHALF SPINDLELONGER SPINDLELOSS OF CENTROSOMESSPLIT/SPLAYED POLESKINETOCHORE MISALIGNMENT,MISORIENTATIONMISALIGNED CHROMOSOME ARMSBENT SPINDLECrosslinks MTs and slides antiparallel MTs outwardSlides MTs poleward;exerts antagonizing forceagainst Kinesin-5Depolymerizes MTs atspindle polesSlides MTs poleward ...
Loughlin, Rose   +2 more
openaire   +2 more sources

Research on dynamic characteristics of motorized spindle based on comprehensive stiffness of angular contact ball bearing [PDF]

open access: yesMechanical Sciences
In order to study the dynamic performance of a motorized spindle system more accurately and to consider the centrifugal effect, thermal effect of the angular contact ball bearing (ACBB) caused by high speed and influence of temperature rise on the ...
B. Dong, C. Lei, K. Liu, R. Song, P. Cui
doaj   +1 more source

Microtubule motors in spindle and chromosome motility [PDF]

open access: yesEuropean Journal of Biochemistry, 1999
Many of the kinesin microtubule motor proteins discovered during the past 8–9 years have roles in spindle assembly and function or chromosome movement during meiosis or mitosis. The discovery of kinesin motor proteins with a clear involvement in spindle and chromosome motility, together with recent evidence that cytoplasmic dynein plays a role in ...
openaire   +2 more sources

A sleep spindle framework for motor memory consolidation [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2020
Sleep spindle activity has repeatedly been found to contribute to brain plasticity and consolidation of both declarative and procedural memories. Here we propose a framework for motor memory consolidation that outlines the essential contribution of the hierarchical and multi-scale periodicity of spindle activity, as well as of the synchronization and ...
Arnaud Boutin, Julien Doyon
openaire   +2 more sources

Nonlinear Dynamic Analysis and Chaos Prediction of Grinding Motorized Spindle System

open access: yesShock and Vibration, 2019
The paper determines the impact factors of dynamics of a motorized spindle rotor system due to high speed: centrifugal force and bearing stiffness softening.
Weitao Jia   +4 more
doaj   +1 more source

The Effect of the Rotor Static Eccentricity on the Electro-Mechanical Coupled Characteristics of the Motorized Spindle

open access: yesMATEC Web of Conferences, 2016
High-speed motorized spindle is a multi-variable, non-linear and strong coupling system. The rotor static eccentricity is inevitable because of machining or assembling error.
Wu Zaixin   +3 more
doaj   +1 more source

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