Sökning: "geometrical variation"

Visar resultat 11 - 15 av 58 avhandlingar innehållade orden geometrical variation.

  1. 11. IMPROVING GEOMETRICAL QUALITY BY INDIVIDUALIZING THE ASSEMBLY PROCESS

    Författare :Abolfazl Rezaei Aderiani; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geometry Assurance; Locator Adjustments; Selective Assembly; Variation Simulations; Individual assembly processes;

    Sammanfattning : Dimensional deviations are a consequence of the mass production of parts. These deviations can be controlled by tightening production tolerances. However, this solution is not always desired because it increases production costs. LÄS MER

  3. 12. Visualising the Effect of Geometrical Variation in Assembled Products. Predicting Visual Quality Appearance

    Författare :Casper Wickman; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tolerancing; visual quality appearance; distance perception; empirical studies; method development; visual sensitivity; and geometric variation; virtual reality;

    Sammanfattning : Today, when an industrial design concept is evaluated in an aesthetic manner, little or no consideration is given to geometrical variation, i.e. the concept is evaluated with nominal geometry. LÄS MER

  4. 13. JOINING SEQUENCE OPTIMIZATION IN COMPLIANT VARIATION SIMULATION

    Författare :Roham Sadeghi Tabar; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Compliant Variation Simulation; Sequencing; Optimization; Joining;

    Sammanfattning : Disturbances in the manufacturing and assembly processes cause deviation and geometrical variation from the ideal geometry. This variation eventually results in functional and aesthetic problems in the final product. Being able to control the disturbances is the desire of the manufacturing industry. LÄS MER

  5. 14. 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

  7. 15. Towards Geometry Assurance of Laser Processed Sheet 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; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tailored heat treated blanks; robust design; geometrical variation; selective laser heat treatment; Geometry assurance;

    Sammanfattning : Stricter emission norms have propelled the automotive industry towards lightweight transportation solutions to reduce the environmental impact. The industry has adapted to cost effective lightweight sheet metal solutions to control the vehicle weight as well as maintain the safety standards of the vehicle. LÄS MER