Search for dissertations about: "multi-body system"

Showing result 1 - 5 of 15 swedish dissertations containing the words multi-body system.

  1. 1. Lean Prototyping of Multi-body and Mechatronic Systems

    University dissertation from Karlskrona : Blekinge Institute of Technology

    Author : Anders Jönsson; Blekinge Tekniska Högskola.; [2004]

    Abstract : Major drivers behind increased efforts in product development are the increased competition due to globalisation and the urgent transformation of society towards sustainability. Furthermore, the average product lifetime has been compressed significantly over the last decade. READ MORE

  2. 2. On multi body systems simulation in product design

    University dissertation from Stockholm : Maskinkonstruktion

    Author : Petri Makkonen; KTH.; [1999]
    Keywords : ;

    Abstract : The aim of this thesis is to provide a basis for efficientmodelling and software use in simulation driven productdevelopment. The capabilities of modern commercial computersoftware for design are analysed experimentally andqualitatively. READ MORE

  3. 3. Correlation between Track Irregularities and Vehicle Dynamic Response Based on Measurements and Simulations

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Tomas Karis; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; track irregularities; vehicle response; wheel–rail force; axle box acceleration; Dynotrain; Gröna Tåget; multi-body system; simulations; spårlägesfel; fordonsrespons; hjul–räl-krafter; axelboxacceleration; Dynotrain; Gröna Tåget; flerkroppssystem system; simuleringar; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik; Farkostteknik; Vehicle and Maritime Engineering; Järnvägsgruppen - Infrastruktur; Järnvägsgruppen - Infrastruktur;

    Abstract : Deviations from the design track geometry are called track irregularities, which are a main excitation mechanism in the track–vehicle dynamic system, and very important to monitor and maintain to have trac on a line run safely and comfortably. Especially during vehicle acceptance testing, it is important that a new vehicle behaves close to design predictions and within limit values, thus it is important to be able to describe track irregularities in a consistent way. READ MORE

  4. 4. Characterisation of Nonlinear Structural Dynamic Systems in Conceptual Design

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Niclas S Andersson; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural dynamics; Model order reduction; Nonlinear characterisation; Multi-body dynamics; Frequency response functions; Multisines; Response classification; Driveline systems; Concept design analysis; Stepped-sine; Support vector machine;

    Abstract : The engine and driveline systems of passenger cars generates and distributes the necessary driving power and are major contributors to vehicle emissions, noise and vibrations, etc. More environmental friendly technologies under development are expected to intensify and add new comfort related problems, since most of them affect vibration sources or system damping. READ MORE

  5. 5. On Active Secondary Suspension in Rail Vehicles to Improve Ride Comfort

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Anneli Orvnäs; KTH.; KTH.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rail vehicle; active secondary suspension; ride comfort; sky-hook damping; H∞ control; multi-body simulations; on-track tests; Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Gröna tåget; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik;

    Abstract : One way to make rail vehicles a competitive means of transportation is to increase running speed. However, higher speeds usually generate increased forces and accelerations on the vehicle, which have a negative effect on ride comfort. With conventional passive suspension, it may be difficult to maintain acceptable passenger comfort. READ MORE