Essays about: "force vibration"

Showing result 21 - 25 of 42 essays containing the words force vibration.

  1. 21. Vibrational tests of preloaded rubber vibration isolators : A cam controlled displacement excitation

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Joanna Cierocka; Jiayue Tang; [2016]
    Keywords : Vibration test; Vibration isolator; Frequency response function; rubber; material properties; aging; camshaft; artificial aging;

    Abstract : Vibrations are very common phenomenon. It influences structures and generates acoustic noise which might be harmful to human beings. The vibration isolator was invented to reduce the effect from vibrations. However, the behavior of rubber material, which many vibration isolators are made of, is hard to predict. READ MORE

  3. 22. Numerical analysis of vibrations due to impact pile driving

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

    Author : Sebastian Andersson Olivecrona; Rasmus Sulander; [2016]
    Keywords : Finite element method; Concrete pile; Impact pile driving; Ground vibrations; Soil mechanics; Soil dynamics; COMSOL Multiphysics; Technology and Engineering;

    Abstract : Vibrations originating from constructional work can affect the nearby soil and structures. Depending on the properties of the vibrations, these can result in settlements in the soil and damages to existing structures. Along with blasting, impact pile driving is one of the greatest sources of vibrations on a construction site. READ MORE

  4. 23. Wind-induced transmission of low frequency vibrations for a tall multi-storey wood building

    University essay from Lunds universitet/Teknisk akustik; Lunds universitet/Institutionen för byggvetenskaper

    Author : Gustav Spjuth; Louise Åkesson; [2016]
    Keywords : acoustic; CLT; FEM; multi-storey; radiation; SPL; vibrations; WIDC.; Technology and Engineering;

    Abstract : The building industry accounts for a large part of the world’s carbon dioxide emissions. At the same time the awareness of sustainable construction and production phase has increased and focus has been directed towards the material wood. READ MORE

  5. 24. Investigation of the Lock-in behavior of an eccentrically rotating cylinder in regard to turbomachinery application.

    University essay from KTH/Kraft- och värmeteknologi

    Author : Sina Samarbakhsh; [2014]
    Keywords : Non-synchronous vibration; Vortex-induced vibration; Oscillating cylinder; Vortex shedding; Fluid-structure interaction;

    Abstract : Interaction of fluctuating vortex shedding with blade vibration can lead to a new class of aeromechanical instability referred as Non-synchronous vibrations. Investigating a well-known case that shows similar NSV features such as a circular cylinder can develop the understanding of physics behind NSV. READ MORE

  6. 25. Cost Evaluation of Seismic Load Resistant Structures Based on the Ductility Classes in Eurocode 8

    University essay from KTH/Betongbyggnad

    Author : Georgios Valdemar Drivas; [2014]
    Keywords : Seismic Design; Eurocode 8; Norwegian Annex; Ductility class low; Ductility class medium; Economical Assessment; Precast Structures; Jordbävningsdimensionering; Eurokod 8; Norskt annex; Duktilitetsklass låg; Duktilitetsklass medium; Lönsamhetsbedömning; Prefabricerade konstruktioner;

    Abstract : Most people do not associate Scandinavia with seismic activity and earthquakes; however, there is in fact seismic activity in the region. Although in comparison with southern Europe the return periods of earthquakes with large magnitudes are quite long, itis critical to consider earthquake impact when designing structures. READ MORE