Searched for: subject%3A%22tuned%255C+mass%255C+damper%22
(1 - 15 of 15)
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van Hooff, Bradley (author)
Within this report, an analytical research will be performed on the effectivity of Tuned Mass Dampers (TMDs) and Viscoelastic Dampers (VEDs), and a conclusion will be drawn as to which is most effective in damping the oscillations of an earthquake. First of all, a simple model of second-order differential equations describing the oscillations of...
bachelor thesis 2023
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Jouna, Behnam (author)
In transition zones, railway tracks experience significant inhomogeneity in their mechanical properties—more specifically in vertical stiffness. In such areas, conventional tracks (soft tracks) are typically encountered with other engineering structures with noticeably larger stiffness, such as bridges and culverts (stiff tracks). This...
master thesis 2022
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van Lierop, Rens (author)
In slender high-rise buildings wind-induced accelerations can become the governing design criterion. These issues can be solved by increasing mass, increasing stiffness, or increasing the damping ratio. The focus of this research is on the last option and investigates the opportunities of supplemental damping in the Dutch high-rise building...
master thesis 2021
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Verma, Amrit Shankar (author), Jiang, Zhiyu (author), Gao, Zhen (author), Vedvik, Nils Petter (author)
Single-blade installation is a conventional method for installing blades on monopile-type offshore wind turbines. A jack-up crane vessel is commonly used, and individual blades are lifted to the tower top height and mated with the hub. The relative motions between the hub and blade root during the mating phase, partly due to wind-induced...
journal article 2020
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Linssen, Rob (author)
The Rotterdam municipality is constantly busy replacing old footbridges that have reached their lifetime. Lately, this is done using modern materials, such as fibre-reinforced polymers (FRP). FRP is a relatively light-weight material that has a high yield strength, which allows for aesthetically pleasing, very slender designs. Governing for such...
master thesis 2020
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van Til, J. (author), Alijani, F. (author), Voormeeren, S. N. (author), Lacarbonara, W. (author)
Nonsmooth dynamics of a Tuned Mass Damper system with lateral stops are studied using an alternating frequency/time harmonic balancing (AFT-HB) method. To this end, an extremely stiff end stop nonlinearity is considered. The application range of AFT-HB is investigated by including up to 250 harmonics in the external force, as well as in the...
journal article 2019
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Slooten, Elgar (author)
The demand for sustainable high-rise buildings is growing. Such sustainable high-rise could be realized by the use of mass timber for the structural design instead of more conventional building materials such as steel and concrete. Timber is a renewable resource which can be CO<sub>2</sub> neutral if reforestation takes place to close its carbon...
master thesis 2018
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Leiro Fonseca, Andres (author)
Reducing the cost of constructing wind turbines, as well as extending their design life, are two ways of reducing the cost of energy from wind. To achieve this, this project tested two innovative tuned-mass damper systems, which reduce resonance of the tower, and do so minimizing additional mass needed on the nacelle. These TMD systems allow the...
master thesis 2018
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Daamen, Joris (author)
Trends towards higher capacity offshore wind turbines (OWTs) and deeper offshore wind farm sites, make wave-induced vibrations more dominant in its design. During idling phases of these next-generation OWTs, additional damping is required. This can be achieved through dynamic vibration absorbers (VAs), i.e. dampers. More importantly, wave...
master thesis 2017
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Djapara, Yosua (author)
The trend of the slender and high-rise building has made the structure prone to dynamic loading. This thesis is focused on the dynamic behavior of the high-rise building subjected to wind action. The acceleration becomes a limiting criterion in designing such structure which can be categorized as the comfort criteria of the building. Nausea and...
master thesis 2017
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de Wit, Niek (author)
A surgical microscope is a stereo, optical device that is positioned near the patient to magnify, illuminate and record the working area during surgery. The different types of surgical procedures, the variety of tools used by the surgeon and the varying viewpoint of the surgeon combined, makes it a very dynamic situation where the microscope...
master thesis 2017
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Tan, Hong (author)
Offshore wind farms in Bohai Bay may be exposed to sea ice. The possible development of ice-induced vibrations can result in periodic high amplitude oscillations of the structure, which can significantly contribute to the fatigue of the structure. The main objective of this thesis is to investigate the mitigation effects of ice-induced...
master thesis 2017
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van Til, J. (author)
Tuned Mass Dampers (TMDs) are passive spring-mass-damper systems that can reduce the fatigue damage in offshore wind turbines, caused by cyclic hydrodynamic loads. The TMD is typically installed within the tower at a high position, where it can attack the first bending mode of the combined structure. In order to calculate the fatigue damage in a...
master thesis 2016
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Miah, P.F. (author)
Jack-up platforms are off-shore structure which are more often placed in deeper water and harsher weather conditions. The consequence is that the natural frequency of the platform coincides with the wave frequency and starts to resonate in its natural frequency. The problem becomes more complicated, due to the fact that the natural frequency of...
master thesis 2015
document
Hijmissen, J.W. (author), Van Horssen, W.T. (author)
journal article 2007
Searched for: subject%3A%22tuned%255C+mass%255C+damper%22
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