Sökning: "structural robustness"

Visar resultat 1 - 5 av 66 avhandlingar innehållade orden structural robustness.

  1. 1. Structural Safety Design for Real-World Situations - Using Computer Aided Engineering for Robust Passenger Car Crashworthiness

    Författare :Linus Wågström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; structural adaptivity; passive safety; small overlap crashes; crash compatibility; frontal crashes; structural robustness; crash simulation;

    Sammanfattning : Road traffic continues to cause more than a million fatalities worldwide every year. Although many steps have been taken to improve occupant protection in car crashes, challenges still remain for car designers. LÄS MER

  3. 2. Community Robustness Analysis : Theoretical Approaches to Identifying Keystone Structures in Ecological Communities

    Författare :Sofia Berg; Tomas Jonsson; Bo Ebenman; Daniel Stouffer; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Most of the world’s ecosystems suffer from stress caused by human activities such as habitat destruction, fragmentation, overexploitation of species and climate change. These factors affect the reproduction and/or survival of individual species as well as interactions between species in ecological communities. LÄS MER

  4. 3. Essays on Estimation Methods for Factor Models and Structural Equation Models

    Författare :Shaobo Jin; Fan Yang-Wallentin; Rolf Larsson; Li Cai; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; shrinkage; factor rotation; penalized maximum likelihood; pseudo-maximum likelihood; multi-group analysis; ordinal data; robustness; Statistics; Statistik;

    Sammanfattning : This thesis which consists of four papers is concerned with estimation methods in factor analysis and structural equation models. New estimation methods are proposed and investigated.In paper I an approximation of the penalized maximum likelihood (ML) is introduced to fit an exploratory factor analysis model. LÄS MER

  5. 4. Optimization and Robustness of Structural Product Families

    Författare :Michael Öman; Larsgunnar Nilsson; Nielen Stander; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : This thesis concerns structural optimization and robustness evaluations, and new methods are presented that considerably reduce the computational cost of these evaluations.Optimization is an effective tool in the design process and the interest from industry of its usage is quickly increasing. LÄS MER

  7. 5. Optimization and robustness of structural product families

    Författare :Michael Öman; Larsgunnar Nilsson; Markus Redhe; Linköpings universitet; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : This thesis concerns structural optimization of product families and robustness. The overall objective is to find a method for performing structural optimization of product families subjected to multiple crash load cases and to ensure a robust behavior. LÄS MER