Sökning: "Geometric Variation"

Visar resultat 1 - 5 av 54 avhandlingar innehållade orden Geometric Variation.

1. 1. Managing Geometrical Variation through Optimization and Visualization

   Författare :Johan Lööf; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; variation simulation; tolerancing; Tolerance allocation; locating scheme optimization; geometry assurance; visualization of variation; tolerance analysis;

   Sammanfattning : All manufacturing processes are afflicted by variation that causes deviations in critical dimensions in the final product. Geometrical variation results in form and size deviation in individual parts. Assembly variation comes from defects in assembly equipment, and influence how parts are mounted together. LÄS MER

3. 2. Robust Form Division - Manging the Effect of Manufacturing Variation

   Författare :Andreas Dagman; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tolerancing; split-line; empirical studies; platform-based products; method development; visual sensitivity; form division; geometric variation.; robust design;

   Sammanfattning : Product development is a necessity for manufacturing companies to keep market shares as well as gaining new ones. Decisions made in the beginning of the process will affect the final product to a large extent. It is thereby of great importance to be able to detect possible obstacles in the early phases of the product development process. LÄS MER

4. 3. Optimization of Geometric Robustness of Aero Structures in Early Design Phases

   Författare :Anders Forslund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry Assurance; Uncertainty Quantification; Robust Design; Simulation; Geometric Variation;

   Sammanfattning : Every manufactured product is different. This variation can be detrimental to quality and product functionality. In an aerospace context, this variation may even result in serious threats to the safety and reliability of aircraft. However, it is not the variation itself that is harmful, but the effects it has on functionality. LÄS MER

5. 4. Geometric Variation Simulation for the Development of Products with Plastic Components

   Författare :Samuel C Lorin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; geometry assurance; plastics.; Variation simulation; finite element method; robust design;

   Sammanfattning : Every manufactured product deviates from the intended product. Furthermore, in a series of products geometrical variation is always present. This variation will lead to functional and aesthetical variation of the product. Geometrical variation stems from variation in the manufacturing of parts and fixtures and variation in assembly operations. LÄS MER

7. 5. Variation Simulation Customized for Composites by Including FEM Simulations of Orthotropic Lamina

   Författare :Cornelia Jareteg; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry assurance; FEM; Composites; Shell model; Process variation; Method of Influence Coefficients; Monte Carlo; Orthotropic material; Manufacturing; Tolerance analysis; Variation simulation; Spring-in; Tolerance analysis;

   Sammanfattning : The use of composite materials is increasing in many fields of production. Composite manufacturing, as well as other fields of production, suffers from uncertainties resulting in products that deviate from the specification. Geometry assurance is a common procedure used to keep the variations in product assemblies under control. LÄS MER