Results 11 to 20 of about 690,112 (296)

Quality Monitoring of Geometric Tolerances: a Comparison Study

open access: yes, 2011
While in the previous chapters different approaches for quality monitoring of geometric tolerances were discussed, in the present one a comparison study is provided in which all of these approaches are considered. The aim is to allow practitioners to select a specific method in a given situation.
Colosimo B. M., PACELLA, Massimo
openaire   +3 more sources

Economic Aspects in the Inspection of Multiple Geometric Tolerances

open access: yesVolume 4: Advanced Manufacturing Processes; Biomedical Engineering; Multiscale Mechanics of Biological Tissues; Sciences, Engineering and Education; Multiphysics; Emerging Technologies for Inspection and Reverse Engineering; Advanced Materials and Tribology, 2012
Recent years have seen an increase in the adoption of geometric tolerances. Often it is possible to find several geometric tolerances defined on a single part. However, this poses inspection issues: the values of the geometric errors may be interrelated; therefore, the presence of multiple tolerances should be considered in inspection design.
PETRO', STEFANO, MORONI, GIOVANNI
openaire   +2 more sources

Allocation of geometric tolerances in one-dimensional stackup problems [PDF]

open access: yes, 2022
Many tolerancing problems on mechanical assemblies involve a functional requirement depending on a chain of parallel dimensions on individual parts.
Armillotta, A
core   +1 more source

Fault-tolerant geometric spanners [PDF]

open access: yesProceedings of the nineteenth annual symposium on Computational geometry, 2003
We present two new results about vertex and edge fault-tolerant spanners in Euclidean spaces. We describe the first construction of vertex and edge fault-tolerant spanners having optimal bounds for maximum degree and total cost. We present a greedy algorithm that for any \(t > 1\) and any non-negative integer \(k\), constructs a \(k\)-fault-tolerant ...
Artur Czumaj, Hairong Zhao
openaire   +3 more sources

Tolerances in Geometric Constraint Problems [PDF]

open access: yesReliable Computing, 2005
Geometric constraint solving is a term of computer-aided design and means the problems which arise when the location of geometric objets is described via geometric relations between them. The issues crucial for engineering applications are solvability of constraint problems and the sensitivity to errors.
Johannes Wallner 0001   +2 more
openaire   +3 more sources

Region-Fault Tolerant Geometric Spanners [PDF]

open access: yesDiscrete & Computational Geometry, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohammad Ali Abam   +3 more
openaire   +6 more sources

Propagation of Geometric Tolerance Zones in 3D [PDF]

open access: yes, 2007
This paper considers error propagation in three dimensional geometric constructions using a geometric approach. First, we present definitions and constructions of tolerance zones for various fundamental elements in Euclidean space. Then, we study in detail the propagation of errors during several geometric computations, including the the distance ...
Song-Hai Zhang   +2 more
openaire   +2 more sources

Uncertainty Analysis of Mixing Efficiency Variation in Passive Micromixers due to Geometric Tolerances

open access: yesModelling and Simulation in Engineering, 2015
The geometric layout is the key factor for enhancing the efficiency of the fluid mixing in passive micromixers. Therefore, by adjusting the geometric design and by controlling the geometric parameters, one can enhance the mixing process. However, through
Irina Stanciu
doaj   +1 more source

A study on tolerance design of machine tool components based on shape generation motions

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The kinematic motion deviations of the five-axis machining centers are deeply influenced by the geometric deviations of the components, such as guide-ways and bearings.
Ryo TAKEMATSU   +5 more
doaj   +1 more source

Analysis of Kinematic Motion Deviations of Rotary Tables Based on Geometric Tolerances

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Machine tools are recognized as key elements of manufacturing systems, and product quality and cost mainly depend on performances of the machine tools. Much progress has been made in the machine tool technologies, aimed at improving the performances of ...
Nobuhiro SUGIMURA   +4 more
doaj   +1 more source

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