Sökning: "computer aided tolerancing"

Hittade 4 avhandlingar innehållade orden computer aided tolerancing.

  1. 1. 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

  3. 2. 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. 3. On Functional Tolerances in Machine Design

    Författare :Rikard Söderberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; loss functions; tolerance chains; quality loss; computer aided tolerancing; manufacturing cost; functional tolerances; quality; tolerances;

    Sammanfattning : This thesis describes a method that allows tolerances on critical dimensions to be assigned with respect to both quality and manufacturing cost. To be able to quantify and include customer needs in the process of assigning tolerances, the concept of functionality loss is used. LÄS MER

  5. 4. Towards improvement of geometrical quality for manual assembly parts

    Författare :Mikael Rosenqvist; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; calculation model; geometry system; Interview; assessment; action cost.; assembly; error; ergonomics; assembly complexity; design for assembly; robust design; complexity; manual assembly; sustainable; tolerance analysis and design; CAT; quality; failure; action cost; assembly ergonomics;

    Sammanfattning : Geometrical variation affects all mass-produced products. This variation will lead to deviations from the nominal design of the product both in terms of aesthetical and functional properties. Geometrical variation originates either from the manufacturing of the parts or from the assembly process. LÄS MER