Sökning: "and geometric variation"

Visar resultat 1 - 5 av 54 avhandlingar innehållade orden and geometric variation.

1. 1. Uncertainty and Robustness in Aerospace Structures

   Författare :Anders Forslund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; simulation; geometry assurance; robust design; Geometrical variation; uncertainty quantification;

   Sammanfattning : Engineering is not an exact science. In fact, all engineering activity contain some degree of assumption, simplification, idealization, and abstraction. When engineered creations meet reality, every manufactured product behaves differently. This variation can be detrimental to product quality and functionality. LÄS MER

3. 2. 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

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. Geometry Assurance of Laser Processed Metal Components

   Författare :Vaishak Ramesh Sagar; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; selective laser melting; Geometry assurance; geometric variation; selective laser heat treatment; robust design;

   Sammanfattning : The manufacturing industry largely contributes to the global economy. How-ever, with the growing complexity of customer demands, stringent environmental norms, and requirements for shorter product development lead times, the industry continues to seek alternatives to address these challenges. 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