Results 11 to 20 of about 1,918,981 (287)

A Step-by-Step Decoupling and Compensation Method for the Volumetric Error for a Gear Grinding Machine

open access: yesActuators
Volumetric error decoupling is a critical prerequisite for effective error compensation. In this paper, the forward volumetric error model is established using the screw theory.
Kai Xu   +4 more
doaj   +2 more sources

Volumetric Error Compensation for the MScMS-II

open access: yesProcedia CIRP, 2013
AbstractLarge scale measuring systems, i.e. measuring systems characterized by a measurement volume from some meters up to some hundreds of meters, are gaining importance in industry to check large parts or track the position of automated vehicles.
GALETTO, MAURIZIO   +3 more
openaire   +4 more sources

Comparison of Volumetric Analysis Methods for Machine Tools with Rotary Axes [PDF]

open access: yes, 2009
Confidence in the ability of a production machine to meet manufacturing tolerances requires a full understanding of the accuracy of the machine. However, the definition of “the accuracy of the machine” is open to interpretation. Historically, this has
Longstaff, Andrew P.   +3 more
core   +12 more sources

Using the Segmented Iterative Learning Control Method to Generate Volumetric Error-Compensated Part Programs for Three-Axis CNC Milling Machine Tools

open access: yesJournal of Manufacturing and Materials Processing, 2018
This study proposes using the iterative learning control method to adjust the volumetric error-compensated tool path, where the working volume motion accuracy of three-axis computerized numerical control (CNC) milling machine tools is increased by ...
Ying-Chen Lu, Syh-Shiuh Yeh
doaj   +2 more sources

Defining a single set of calibration parameters and prestorm bathymetry in the modeling of volumetric changes on the southern Baltic Sea dune coast

open access: yesOceanologia, 2022
The studies described herein aimed to estimate the accuracy of determination of the volumetric changes on the dune coast of the southern Baltic Sea through the application of the XBeach numerical model, which is crucial for coastal engineering.
Natalia Bugajny, Kazimierz Furmańczyk
doaj   +1 more source

3D reconstruction of lower anterior teeth from CBCT images: automatic segmentation with manual refinements [PDF]

open access: yesDental Press Journal of Orthodontics, 2023
Objective: To develop a well-detailed and reproducible tooth segmentation method, when quantifying tooth volumetric measurements is needed. Material and Methods: This was an in vitro study in which lower incisors and canines of five patients were 3D ...
Gaston Federico Coutsiers MORELL   +2 more
doaj   +1 more source

Experimental Study of the Volumetric Error Effect on the Resulting Working Accuracy—Roundness

open access: yesApplied Sciences, 2020
Currently, various types of software compensations are applied to machine tools. Their aim is to increase the working accuracy of the tools. The improvement in working accuracy is then further assessed according to the increase in the dimensional and ...
Michal Holub   +6 more
doaj   +1 more source

Fuzzy modeling of volumetric efficiency and specific energy consumption in agricultural screw conveyors [PDF]

open access: yesCiência Rural, 2020
: Vertical screw conveyors have low energy efficiency but this is generally acceptable within the normally low power range. Previously, a fuzzy logic approach was used to model volumetric efficiency and specific energy consumption in screw conveyors. The
Osman Özbek
doaj   +1 more source

Micro-Diffusion Analysis and Volumetric Error [PDF]

open access: yesNature, 1940
THE development of new methods of chemical analysis brings often in its train the discovery of new facts and the opening up of new fields of investigation. This is particularly true of biochemistry, where the accurate estimation of small quantities of substances in biological material may be of fundamental importance.
openaire   +2 more sources

The modeling method of machine tool geometry error based on Bryan principle

open access: yesAdvances in Mechanical Engineering, 2023
The error caused by measurement itself directly affects the accuracy of models. The error caused by the failure to follow the Bryan principle in the process of measuring the volumetric error of the machine tool makes the geometric accuracy of the machine
Hongwei Liu, Rui Yang
doaj   +1 more source

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