Essays about: "modal frequency response"

Showing result 1 - 5 of 46 essays containing the words modal frequency response.

  1. 1. Investigation of torsion modes in overhead traveling cranes: : Reviewing the ISO 22980 standard

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Simon Jens; [2023]
    Keywords : Overhead traveling crane; Finite element method; Frequency and experimental vibration analysis; Travers; finita elementmetod; egenfrekvensanalys; experimentell vibrationsanalys;

    Abstract : Overhead cranes and rail mountings in the wall are subjected to vibrations whenlifting equipment. The purpose of this thesis is to review if the minimum frequencyvalue for cranes, according to the ISO 22986:2007 standard is conservative whendesigning overhead traveling cranes. READ MORE

  3. 2. Vibrations in a high frequency clt floor panel - Measurement, prediction and evaluation

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

    Author : André Wirthig; [2023]
    Keywords : Vibrations; High frequency floors; Sensitive equipment; Technology and Engineering;

    Abstract : There is an increased need for floors that can accommodate different type of sensitive equipment [1]. Further, it is recommended to design these floors as high frequency floors (HFF) to be able to meet the stringent vibration criteria [1]. READ MORE

  4. 3. Forced response numerical investigation of a transonic compressor rotor

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Mariana Pires Gonçalves Toco Dias; [2023]
    Keywords : Compressor; rotor; blisk; aeroelasticity; aerodynamic damping; CFD; transient; forced response;

    Abstract : The present thesis discusses the forced response of a rotor’s bladed-disk when excited by the periodic force produced by a wake generator, or Inlet Guide Vane (IGV),with 8 equally-spaced blades. These components are part of an axial transonic compressor rig, moreover the Transonic Compressor Darmstadt 1 (TCD1), located at the Technical University of Darmstadt. READ MORE

  5. 4. Utilisation of hardwood in cross-laminated timber - A numerical study on vibrations in floors

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

    Author : Johannes Jonasson; Olle Karlsson; [2022]
    Keywords : hardwood; birch; beech; clt; cross-laminated timber; vibrations; floors; footfall; accelerations; Technology and Engineering;

    Abstract : Cross-laminated timber (CLT) is an engineered wood product consisting of several layers of laminations bonded together with adhesives. In contrast to heavier construction materials, timber and other lightweight building materials are more prone to serviceability issues due to vibrations. READ MORE

  6. 5. Assessment of Ground Vibration for Early-Stage Design

    University essay from KTH/Bro- och stålbyggnad

    Author : Fadi Rafea Jameel Jameel; Patrick Francesco Joseph; [2022]
    Keywords : ;

    Abstract : 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. READ MORE