Sökning: "follower forces"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden follower forces.

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

    Författare :Thomas Abrahamsson; Chalmers tekniska högskola; []
    Nyckelord :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;

    Sammanfattning : .... LÄS MER

  3. 2. Wear resistant low friction coatings for engine components

    Författare :Per Lindholm; Sören Andersson; Rickard Larker; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering materials; cam; roller follower; carbon coating; engine test; finite element method; Konstruktionsmaterial; Construction materials; Konstruktionsmaterial;

    Sammanfattning : Engine development today is driven by cost, performance and government regulations. Customers want cars and trucks to consume less fuel, last longer, pollute less and be safer. Several of the requirements have tribological associations. For example, product longevity can be improved by lowering friction and using more wear-resistant components. LÄS MER

  4. 3. Drum Brake Squeal

    Författare :Johan Hultén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction induced; squeak; vibration; drum brake; squeal; instability; self-excited; noise;

    Sammanfattning : Drum brake squeal is a common discomfort. The main goal of this thesis is to investigate the mechanisms that generate drum brake squeal and to create a base for the search for solutions. A series of steps towards the understanding of these mechanisms are taken. Firstly, a simple model for friction-induced vibration is presented. LÄS MER

  5. 4. Den unge Manfred Björkquist : Hur en vision av kristendomens möte med kultur och samhälle växer fram

    Författare :Torbjörn Aronson; Oloph Bexell; Kjell Blückert; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; vision; »folk church»; confessional Lutheranism; Pietism; consensus; civil society; Christian Student Association; nationalism; Young Church movement; Church history; Kyrkohistoria;

    Sammanfattning : This thesis is a biographical study of Manfred Björkquist’s early life and addresses questions concerning the development of his vision of Christianity, culture and soci-ety. A comparison is also made between Björkquist’s vision and the classical typol-ogy of H. Richard Niebuhr. LÄS MER

  7. 5. Optimizing Ocean Feature Estimation and Tracking through Adaptive Sampling and Formation Control of Autonomous Underwater Vehicles

    Författare :Joana Filipa Gouveia Fonseca; Karl H. Johansson; Nina Mahmoudian; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Increased ocean temperatures caused by climate change are expected to lead to more frequent and severe harmful algal blooms, which deteriorate water quality, cause human illness and fish mortality. Scientific understanding of algal blooms and their dynamics is limited due to the lack of data from such ocean phenomena. LÄS MER