Search for dissertations about: "Nonlinearities"

Showing result 1 - 5 of 120 swedish dissertations containing the word Nonlinearities.

  1. 1. Methods for Simulation and Characterization of Nonlinear Mechanical Structures

    Author : Martin Magnevall; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear dynamics; nonlinear parameter estimation; harmonic balance; reverse-path; zero-memory nonlinear systems; hysteretic nonlinearities; dry-friction; geometric nonlinearities;

    Abstract : Trial and error and the use of highly time-consuming methods are often necessary for modeling, simulating and characterizing nonlinear dynamical systems. However, for the rather common special case when a nonlinear system has linear relations between many of its degrees of freedom there are particularly interesting opportunities for more efficient approaches. READ MORE

  2. 2. Essays on Financial Models

    Author : Henrik Amilon; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; options; neural networks; hedging; portfolio optimization; econometrics; Economics; ekonomisk teori; ekonomiska system; ekonomisk politik; ekonometri; generalized residuals; discreteness; GARCH; compass rose; nonlinearities; Chaos; economic theory; economic systems; Nationalekonomi; economic policy;

    Abstract : This thesis consists of five essays exploring the validity of some extensively used financial models with a focus on the Swedish equity and derivative markets. The essays are of both an empirical and a theoretical nature. READ MORE

  3. 3. Analysis of Structural Dynamic Properties and Active Vibration Control Concerning Machine Tools and a Turbine Application

    Author : Henrik Åkesson; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Active Vibration Control; Structural dynamics; Nonlinearities; Turning; Milling;

    Abstract : Vibration in metal cutting is a common problem in the manufacturing industry, especially when long and slender tool holders or boring bars are involved in the manufacturing process. Vibration has a detrimental effect on machining. In particular the surface finish is likely to suffer, but tool life is also most likely to be reduced. READ MORE

  4. 4. Evaluation of strong nonlinearities in hydropower systems

    Author : Florian Thiery; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : In hydropower systems, it is essential to avoid catastrophic failures that leads to human and economic losses. Unfortunately, the rotor can behave abnormally since several nonlinear effects occur during start-up, shut downs or when running at nominal speed. READ MORE

  5. 5. Investigation of limit cycle oscillations considering geometric nonlinearities

    Author : Daniel Berggren; KTH; []
    Keywords : ;

    Abstract : .... READ MORE