Essays about: "Experimental modal analysis"

Showing result 6 - 10 of 63 essays containing the words Experimental modal analysis.

  1. 6. Simulation of Mechanical Shock with Finite Element Analysis and Estimation of Shock Attenuation

    University essay from KTH/Hållfasthetslära

    Author : Cheng Qian; [2021]
    Keywords : shock; SRS; FEA; attenuation; chock; SRS; FEA; chockdämpning;

    Abstract : Space equipment is often subjected to mechanical shocks. Some devices like electronics are sensitive to shocks, and they can easily be damaged. To protect these devices, it is important to study shock penetrations in space structures. The Finite Element Method is an effective tool to simulate response to transient excitations. READ MORE

  3. 7. Numerical and Experimental Modal Analysis of CNC Machine

    University essay from Blekinge Tekniska Högskola

    Author : Pacifique Uwajambo; Nisha Thakur; [2021]
    Keywords : ;

    Abstract : Numerical and Experimental Modal Analysis of RAW CNC milling machine was performed in this project. The RAW CNC machine's lightweight, easy assembling, and operation features make it a good choice for hobbyists and professionals. READ MORE

  4. 8. Dynamic analyses of hollow core slabs : Experimental and numerical analyses of an existing floor

    University essay from KTH/Bro- och stålbyggnad

    Author : Markus Hansell; Panagiotis Tamtakos; [2020]
    Keywords : Hollow core slab; Structural dynamics; Signal analysis; Mode shape; Frequency response function; Complex mode; FE-model; Håldäcksbjälklag; Strukturdynamik; Signalanalys; Modform; Frekvenssvar; Komplex mod; FE-modellering.;

    Abstract : For intermediate floors in residential and office buildings, as well as in parking garages and malls, there is a wide use of hollow core concrete slabs in Sweden today. Hollow core slabs are precast and prestressed concrete elements with cylindrical-shaped voids extending along the length of the slab. READ MORE

  5. 9. Analytical Investigation of Planetary Gears Instabilities and the Impact of Micro-Macro Geometry Modifications

    University essay from KTH/Farkostteknik och Solidmekanik

    Author : Hamza Oudich; [2020]
    Keywords : Planetary gears; Instabilities; Resonance; Vibration; dynamic response; Spectral Iterative Method; Modal analysis; Static and dynamic transmission error; Gear mesh stiffness; Macro and micro-geometry; Phasing;

    Abstract : Due to their large torque-speed ratio and transmission efficiency, planetary gears are widely used in the automotive industry. However, high amplitude vibrations remain their critical weakness, which limits their usage especially when new strict noise legislations come into action. READ MORE

  6. 10. FEM modelling of sound reduction index in partition CLT wall

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

    Author : Adam Hultin; Erik Hörström; [2020]
    Keywords : Technology and Engineering;

    Abstract : Constructing buildings with wood brings many advantages, especially regarding environmental aspects, which has brought an up-rise in these types of structures. However, one of the main issues regarding wooden structures is its tendency to perform poorly acoustically in lower frequencies compared to heavier structures. READ MORE