The significance of air pockets for modelling thermal errors of machine tools [PDF]
, 2013 It is well known, especially with the prevalence of compensation for geometric errors, that thermal error represents the most significant proportion of the total volumetric error of the machine tool. Thermal error in machine tools originates from changes
Longstaff, Andrew P. +3 more
core +3 more sources
Thermal Error Modelling of a CNC Machine Tool Feed Drive System using FEA Method [PDF]
, 2016 Recirculating ball screw systems are commonly used in machine tools and are one of the major heat sources which cause considerable thermal drift in CNC machine tools.
Longstaff, Andrew P. +3 more
core +3 more sources
An efficient offline method for determining the thermally sensitive points of a machine tool structure [PDF]
, 2012 Whether from internal sources or arising from environmental sources, thermal error in most machine tools is inexorable. Out of several thermal error control methods, electronic compensation can be an easy-to-implement and cost effective solution. However,
Longstaff, Andrew P. +3 more
core +4 more sources
Investigation of torque characteristics in a novel permanent magnet flux switching machine with an outer-rotor configuration [PDF]
, 2014 This paper comprehensively investigates the torque characteristics of a novel permanent magnet flux switching machine with outer-rotor configuration.
Miao, Dong-Min +3 more
core +1 more source
Machine structure simulation using FEA and optimised thermal parameters [PDF]
, 2015 Continuous usage of machine tools during manufacturing processes causes heat generation in the moving elements, resulting in distortion of the machine tool structure.
Longstaff, Andrew P. +3 more
core +3 more sources
Sidney Machine Tool Company photograph collage
A collage of photographs of men using equipment at the Sidney Machine Tool Company. Sidney Tool Company was founded in 1905 by Alfred C. Getz in Sidney, Ohio. Getz was also acting plant manager for Monarch Machine Tool, also in Sidney, during the same
Sidney Machine Tool Company
core +4 more sources
Efficient estimation by FEA of machine tool distortion due to environmental temperature perturbations [PDF]
, 2013 Machine tools are susceptible to exogenous influences, which mainly derive from varying environmental conditions such as the day and night or seasonal transitions during which large temperature swings can occur.
Mian, Naeem +12 more
core +1 more source
Predetermination of Currents and Field in Short-Circuit Voltage Operation for an Axial-Flux Permanent Magnet Machine [PDF]
, 2008 Risk of irreversible magnet demagnetization during short-circuit fault is analyzed in case of an axial-flux dual-rotor machine, using a three-dimensional finite-element method (3D-FEM).
LOCMENT, Fabrice +3 more
core
Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-Shape Interior PM Electrical Machine [PDF]
, 2011 Post publication CONGRES EVER2011 (International Conference and Exhibition on Ecological Vehicles and Renewable Energies 2011)This paper investigates the influence of the rotor structure on torque and flux weakening region of V-shape IPM (interior ...
VIGIER, Thimoté +4 more
core
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source