Sökning: "eigenfrequencies"
Visar resultat 6 - 10 av 49 uppsatser innehållade ordet eigenfrequencies.
6. Assessment of Ground Vibration for Early-Stage Design
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : Ground borne vibrations in urban areas can be caused by human activities such as railwayand road traffic, construction works and industrial manufacturing. These vibrations can playa significant role in human comfort and the disruption of vibration sensitive equipment inbuildings. LÄS MER
7. Optimization of structures byincluding modeling of pilefoundations : A parametric study on using stiff supports orpiles in a model
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : Structural engineers use rules and regulations in the form of Eurocodes and other supplementary guidelines to design different type of structures. However, the uncertainty surrounding each case and the actual outcome that depends on decisions made throughout the design phase are of most importance and must be handled properly from start. LÄS MER
8. Dynamisk analys av en gång och cykel fackverksbro av trä
Master-uppsats, KTH/Bro- och stålbyggnadSammanfattning : The interest in increasing the use of timber in structural engineering has risen significantly inrecent years due to the urgency of reducing the environmental impact of the building industry.Timber bridges is one of the many possible use-cases for timber in structural engineering. LÄS MER
9. Computationally Efficient Methods in Topology Optimization
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaperSammanfattning : In topology optimization, iterative, gradient-based methods are used to find the material distribution of structures which maximizes some objective function, typically the structures' stiffness, or in some cases the fundamental frequency. Finite element analysis is used to compute the structural response in each iteration, leading to large systems of equations. LÄS MER
10. Experimental acceleration Measurements and Finite Elements Modeling
Magister-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)Sammanfattning : Heavy crushing machines under their production shifts, creates various levels of vibration, noise and dynamic forces which can be transferred to other parts of the industrial unit. Such kind of factors applies continuous forces on machine parts which can cause gradual fatigue, creep and eventually failure of machine. LÄS MER
