Search for dissertations about: "nonproportional damping"

Found 2 swedish dissertations containing the words nonproportional damping.

  2. 1. Modal analysis and synthesis in transient vibration and structural optimization problems

    Author : Thomas Abrahamsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex modal analysis; transient analysis; nonproportional damping; adjoint eigenproblems; follower forces; structural optimization; nonconservative systems; sensitivity analysis; linear continous structural systems; moving loads;

    Abstract : .... READ MORE

  4. 2. Eigenfrequency Analysis FE-Adaptivity and a Nonlinear Eigenproblem Algorithm

    Author : Patrik Hager; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear eigenvalue; finite element; adaptivity; superconvergent patch recovery; rational krylov;

    Abstract : Engineering often pose the problem of computing the frequencies with which a system oscillates and the corresponding displacement patterns the system forms, and in case damping is present then the rates of which the amplitudes of the displacement patterns decay are also required. It is necessary to compute these quantities within a prescribed accuracy and the effort required for the computations should be minimised. READ MORE