Sökning: "Mode shape"
Visar resultat 21 - 25 av 84 uppsatser innehållade orden Mode shape.
21. Cross-comparison of Non-Linear Seismic Assessment Methods for Unreinforced Masonry Structures in Groningen
Master-uppsats, KTH/BetongbyggnadSammanfattning : A large amount of low-rise unreinforced masonry structures (URM) can be foundin Groningen, the Netherlands. More and more induced earthquakes with shortduration have been detected in this region due to gas exploitation. LÄS MER
22. Estimation of Inertia in Power Systems Using Electromechanical Modes
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automationSammanfattning : The transition to more renewable energy such as wind, leads to a decreased inertia in the power system. As a consequence of this, disturbances lead to larger frequency deviations and the frequency stability of the system is worsened. Therefore, there is a surging interest to estimate the inertia in the power system. LÄS MER
23. Plasma density characteristics of magnetic holes near the Kronian magnetosphere boundary surfaces
Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : Localized structures of the magnetic field strength depression are often observed in the interplanetarymedium, and they are called ‘magnetic holes’ after the original work of Turner et al. 1977. A numberof observations of similar features have been reported, while the mechanisms of their origin have notfully understood yet. LÄS MER
24. Vibrational prediction of a waste water pump
Master-uppsats, KTH/HållfasthetsläraSammanfattning : An off-market waste water pump is suspected to have high vibrational velocity levels. These vibrations are sought after at the outer surface located at the upper bearing position of the pump. It has then become of interest for trying to predict these vibrations by using the commercial FEA software COMSOL. LÄS MER
25. Expansion of Existing Gravity-Based Offshore Wind Turbine Foundations
Master-uppsats, KTH/BetongbyggnadSammanfattning : Wind energy is one of the most promising sources of renewable energy worldwide. Its utilization has substantially increased for the last decades, both onshore and offshore. Offshore wind energy will have a lot to offer within the following decades, thus their foundations need to be prepared. LÄS MER