Essays about: "Operational modal analysis"

Showing result 6 - 10 of 10 essays containing the words Operational modal analysis.

  1. 6. Passengers´perspectives on advanced bus systems in Sweden

    University essay from KTH/Transportplanering, ekonomi och teknik

    Author : Jae Sung Jung; [2015]
    Keywords : ;

    Abstract : Passengers’ perspectives on advanced bus system in Sweden – the title of this thesis work can be re-written as next question: ‘What can we learn from today’s advanced bus systems for tomorrow’s BRT systems?’ In order to get an answer to this question, several examples of ‘advanced’ bus systems currently running in Sweden were investigated. Among them, Stockholm’s double-decker route (SL 676) and MalmoExpressen were selected for more in-depth studies. READ MORE

  3. 7. Frequency Analysis of Rottne Comfort Line

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Jan Grzeszczak; Michał Płygawko; [2014]
    Keywords : Centre of gravity; Hammer test; Inertia Properties; LMS; Mass line; OMA; Vibration testing;

    Abstract : The European Parliment stipulated regulations concerning the forestry vehicles operators' health and working conditions. The allowed whole body vibrations were limited, which influenced the design of the vehicles' cabin. Surveys show a strong correlation between operator's comport and their productivity. READ MORE

  4. 8. Modal Testing and Structural Identification

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

    Author : Tobias Kristensson; [2014]
    Keywords : Modal testing; Modal analysis; Structural identification; Vibration; Signal; EMA; OMA; Technology and Engineering;

    Abstract : Bridges have been built around the world for at least 3000 years and have made it possible for man to travel over obstacles like valleys and rivers, which has contributed to the rapidly growing infrastructure we have today. Efforts made to save materials and reduce production costs have led to lighter and slender structures, which in turn can cause dynamic problems where the bridge is sensitive to vibrations. READ MORE

  5. 9. Application of transmissibility measurement in estimation of modal parameters for a structure

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : AmirHossein Aghdasi; [2013]
    Keywords : Operational Modal Analysis; Transmissibility measurement; mode shape; MATLAB.;

    Abstract : Identification of modal parameters from output-only data is studied in this work. The proposed methodology uses transmissibility functions obtained under different loading conditions to identify resonances and mode shapes. The technique is demonstrated with numerical simulations on a 2-DOF system and a cantilever beam. READ MORE

  6. 10. Operational Modal Analysis of the Stockholm Waterfront Congress Centre

    University essay from KTH/Bro- och stålbyggnad

    Author : Ulrika Grundström; [2010]
    Keywords : Operational modal analysis; OMA; Frequency Domain Decomposition; FDD; experimental dynamics; human-induced vibrations; spectator-induced vibrations; rhythmic excitation; Stockholm Waterfront Congress Centre;

    Abstract : .... READ MORE