Essays about: "Structural damping"

Showing result 16 - 20 of 45 essays containing the words Structural damping.

1. 16. Cross-comparison of Non-Linear Seismic Assessment Methods for Unreinforced Masonry Structures in Groningen

   University essay from KTH/Betongbyggnad

   Author : Viktor Peterson; Zihao Wang; [2020]
   Keywords : Non-linear time-history analysis; non-linear pushover analysis; N2-method; equivalent frame model; continuum model; numerical seismic assessment; unreinforced masonry buildings; Olinjär tids-historikanalys; olinjär stjälpningsanalys; N2-metoden; ekvivalent rammodell; kontinuumelement modell; numerisk jordbävningsanalys; oarmerade murverksbyggnader;

   Abstract : A large amount of low-rise unreinforced masonry structures (URM) can be found in Groningen, the Netherlands. More and more induced earthquakes with short duration have been detected in this region due to gas exploitation. READ MORE

3. 17. Numerical analysis of aerodynamic damping in a transonic compressor

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Vincenzo Stasolla; [2019]
   Keywords : transonic compressor; flutter; vibration; CFD; transonic kompressor; fladder; vibration; CFD;

   Abstract : Aeromechanics is one of the main limitations for more efficient, lighter, cheaper and reliable turbomachines, such as steam or gas turbines, as well as compressors and fans. In fact, aircraft engines designed in the last few years feature more slender, thinner and more highly loaded blades, but this trend gives rise to increased sensitivity for vibrations induced by the fluid and result in increasing challenges regarding structural integrity of the engine. READ MORE

4. 18. Numerical and experimental dynamic analyses of the Vega Pedestrian bridge including seasonal effects

   University essay from KTH/Bro- och stålbyggnad

   Author : John Peter Hallak Neilson; [2019]
   Keywords : Structural dynamics; Timber structures; Seasonal effects; Asphalt; Footbridges; Arch bridges; Dynamic analysis;

   Abstract : As timber structures become increasingly relevant and sought after – since they enable improvements in building time while reducing a structure’s life cycle impacts – streamlining their design can have meaningful economic and environmental implications. For timber footbridges, its design is frequently governed by serviceability criteria linked to excessive vibrations. READ MORE

5. 19. Train Induced Vibration Analysis of an End-frame Bridge : Numerical Analysis on Sidensjövägen

   University essay from KTH/Bro- och stålbyggnad

   Author : Niklas Wiberg; Jasmin Halilovic; [2018]
   Keywords : Accelerations; Dynamics; End-frame bridge; FE-modeling; Frequency response function; High-speed railway; Soil structure interaction; Train induced vibrations; 2D 3D;

   Abstract : Higher speeds and higher capacity will cause the Swedish rail network to be exposed to disturbing dynamic effects. Higher speeds cause higher vertical acceleration levels of the bridge deck. In this thesis, a numerical analysis of a three span end-frame bridge subjected to train induced vibrations is performed. READ MORE

6. 20. Structural effects on externally induced building vibrations

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

   Author : Alfred Johansson; [2018]
   Keywords : Building vibrations; Finite element method; structural dynamics; soil dynamics; structure-soil-structure interaction; Technology and Engineering;

   Abstract : Much focus is being laid on vibrations in the building industry today. Many times these vibrations are externally induced and caused by placing buildings closer to existing sources, such as railways and roads, or new transportation systems closer to existing buildings. READ MORE