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Analysis of kinematic motion deviations of machining centers based on geometric tolerances
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014 The objectives of the present research are to investigate relationships between kinematic motion deviations of machine tools and geometric tolerances of their components, to propose mathematical models representing kinematic motion deviations of five ...
Atsushi TAKAHASHI +5 more
doaj +3 more sources
The tolerance balancing optimization with multiple constraints on the form and function of the discrete functional surface [PDF]
Scientific ReportsThe working performance of the discrete functional surface is affected by the surface form. Both the surface form and the geometric function should be considered in tolerance design.
Chuanyuan Zhou +2 more
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GEOMETRIC METHODS OF ASSIGNING TOLERANCES
Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2007 The geometric interpretation of assigning tolerances is used. Re-calculation of interval tolerances and normal ones is performed. The optimization of volume of tolerance domain is considered.
G.N. Shilo
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Inspection Strategies and Multiple Geometric Tolerances
Procedia CIRP, 2013 AbstractRecent years have seen an increase in the adoption of geometric tolerances. It is often possible to find several geometric tolerances defined on a single part. However, this poses inspection issues: the values of the geometric error may be interrelated; therefore, the presence of multiple tolerances should be considered in inspection design. In
Stefano Petro, Giovanni Moroni
exaly +3 more sources
SABER-BIM: A Component-Level Adaptive Lightweighting Framework for Digital Twin BIM Models [PDF]
SensorsLightweighting Building Information Modeling (BIM) models for digital-twin applications requires balancing aggressive geometric reduction with component-level engineering tolerances and mesh usability.
Zhengbing Yang +3 more
doaj +2 more sources
Analysis of Kinematic Motion Deviations of Rotary Tables Based on Geometric Tolerances
Journal 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 +3 more sources
Tolerance Synthesis of Delta-like Parallel Robots Using a Nonlinear Optimisation Method
Applied Sciences, 2023 Robotic systems require high accuracy in manipulating objects. Positioning errors are influenced by geometric tolerances and various sources. This paper introduces a new technique based on the interior-point algorithm optimisation method to allocate ...
Allaoua Brahmia +3 more
doaj +1 more source
Investigation of the Cylinder Liner Wear in Agricultural Tractors [PDF]
Journal of Agricultural Machinery, 2023 The present study aimed to examine the application of accurate and principle-based evaluation of a measuring instrument called the Form Tester in determining and detecting the wear phenomenon in the cylinder liner of agricultural tractors.
R. Khodabakhshian, R. Baghbani
doaj +1 more source
Fault-tolerant geometric spanners [PDF]
Proceedings 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
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Tolerances in Geometric Constraint Problems [PDF]
Reliable 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 +2 more sources