Essays about: "viscous damping"

Showing result 6 - 10 of 13 essays containing the words viscous damping.

  1. 6. Dynamic Soil-structure Interaction of Portal Frame Bridge Walls for High-speed Railways

    University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Henrik Malm; [2016]
    Keywords : SSI; Soil-structure interaction; Structural dynamics; High-speed railway bridges; Impedance; Receptance; Finite element method; Portal frame bridge; Technology and Engineering;

    Abstract : In Sweden, high-speed railways is a subject for public debate. The first stage of a high-speed train network, Ostlänken between Stockholm and Linköping, is under investigation, and is planned to be trafficked in 2028. The high-speed railway is intended to hold traffic with speeds up to 320 km/h. READ MORE

  3. 7. Establishment of an open 3D steam turbine flutter test case

    University essay from KTH/Energiteknik

    Author : Di Qi; [2016]
    Keywords : ;

    Abstract : An open three-dimensional (3D) flutter test case for steam turbines is presented. Unlike previous research on turbine flutter, the geometry is an open resource and is from a test case originally presented by Durham University. READ MORE

  4. 8. Influence of the Non-linear Effects in the Design of Viscous Dampers for Bridge Cables

    University essay from KTH/Byggvetenskap; KTH/Skolan för arkitektur och samhällsbyggnad (ABE)

    Author : Yalda Acar; Pontus Jingstål; [2014]
    Keywords : Bridge cables; external viscous damper; half-power bandwidth method; loss factor; non-linear vibration; Brokabel; externa viskösa dämpare; half-power bandwidt metoden; förlustfaktor; icke-linjär vibrationer;

    Abstract : In this master thesis the performance of external viscous dampers attached to cables in cable-stayed bridges have been studied. A comparison has been performed between a linear and a non-linear cable model. The comparison was carried out for two bridge cables, one from the Dubrovnik Bridge and the other from the Normandie Bridge. READ MORE

  5. 9. Experimental Characterization of Fixtures Design: A comprehensive study on vibration minimization technique by using viscoelastic materials

    University essay from KTH/Industriell produktion

    Author : Md Zamiul Mottasim; [2014]
    Keywords : ;

    Abstract : Damping is a phenomenon which is obviously related with dissipation of vibration energy under relative motion in a mechanical system. Without changing excitation force in many cases vibration is reduced only by changing mass or stiffness of the system just with altering the resonance frequencies. READ MORE

  6. 10. Influence of the Non-linear Effects in the Design of Viscous Dampers for Bridge Cables

    University essay from KTH/Bro- och stålbyggnad

    Author : Yalda Acar; Pontus Jingstål; [2014]
    Keywords : Bridge cables; external viscous damper; half-power bandwidth method; loss factor; non-linear vibration; Brokabel; externa viskösa dämpare; half-power bandwidth metoden; förlustfaktor; icke-linjära vibrationer;

    Abstract : In this master thesis the performance of external viscous dampers attached to cables in cable-stayed bridges have been studied. A comparison has been performed between a linear and a non-linear cable model. The comparison was carried out for two bridge cables, one from the Dubrovnik Bridge and the other from the Normandie Bridge. READ MORE