Sökning: "viscous dampers"
Hittade 5 uppsatser innehållade orden viscous dampers.
1. Dynamik och Dämpning för Samverkansbroar med Tågtrafik
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Avdelningen för Konstruktionsteknik; Lunds universitet/Institutionen för bygg- och miljöteknologiSammanfattning : För att svensk järnvägsinfrastruktur skall kunna vara konkurrenskraftig i jämförelse med mindre miljövänliga alternativ krävs kapacitetsutbyggnad och hastighetsökning av det svenska järnvägsnätet. Vid hastigheter över 200 km/h finns krav på att dynamiska analyser behöver utföras. LÄS MER
2. Reduction of Vertical Acceleration in High-speed Railway Bridges Using Post-installed Viscous Dampers : A case study of the Bothnia Line
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : Several of the bridges along the Bothnia railway line do not fulfill the requirements regarding vertical accelerations that are stated in current design codes. The acceleration of the bridges needs to be reduced, in order to make the Bothnia line suitable for high speed railway traffic. LÄS MER
3. Influence of the Non-linear Effects in the Design of Viscous Dampers for Bridge Cables
Master-uppsats, KTH/Byggvetenskap; KTH/Skolan för arkitektur och samhällsbyggnad (ABE)Sammanfattning : 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. LÄS MER
4. Experimental Characterization of Fixtures Design: A comprehensive study on vibration minimization technique by using viscoelastic materials
Master-uppsats, KTH/Industriell produktionSammanfattning : 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. LÄS MER
5. Influence of the Non-linear Effects in the Design of Viscous Dampers for Bridge Cables
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : 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. LÄS MER