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  1. Home/
  2. Yogesh Prajapati/
  3. Frequency Analysis of a rotating shaft

Frequency Analysis of a rotating shaft

Aim: To perform frequency analysis on a circular disc mounted on a stepped shaft. Model: A circular disc with stepped shaft is as shown in figure below, The dimension for the model are as follows, Diameter of disc = 100mm Thickness os disc = 10mm Shaft Diameter = 20mm Shaft Length = 300mm The taper part of shaft is 12.5mm…

    • Yogesh Prajapati

      updated on 22 Jun 2020

    Aim: To perform frequency analysis on a circular disc mounted on a stepped shaft.

    Model:

    A circular disc with stepped shaft is as shown in figure below,

    The dimension for the model are as follows,

    Diameter of disc = 100mm

    Thickness os disc = 10mm

    Shaft Diameter = 20mm

    Shaft Length = 300mm

    The taper part of shaft is 12.5mm in diameter and 15mm in length at each side.

    The model would be mounted on bearing at taper part. In this scenario there will be certain frequencies at which model will experience resonance with characteristics mode shape. These mode shape and correspondign frequency would be found out using frequency analysis.

     

    Analysis Setup:

    For frequency analysis, frequency is selected from new study dialog box. The bearing fixture is applied to taper part of shaft (i.e. shaft ends). The material choosen for the model is Alloy Steel. Element size for meshing is choosen as 5mm. The meshed geometry is as shown below,

     

    Results:

    Mode shape 1:

     

    Mode shape 2:

     

    Mode shape 3:

     

    Mode shape 4:

     

    Mode shape 5:

     

     

    Frequencies of Mode Shapes:

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    Read more Projects by Yogesh Prajapati (24)

    Frequency Analysis of a rotating shaft

    Objective:

    Aim: To perform frequency analysis on a circular disc mounted on a stepped shaft. Model: A circular disc with stepped shaft is as shown in figure below, The dimension for the model are as follows, Diameter of disc = 100mm Thickness os disc = 10mm Shaft Diameter = 20mm Shaft Length = 300mm The taper part of shaft is 12.5mm…

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    22 Jun 2020 10:59 AM IST

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        Aim: To perform static stress analysis on beams of different cross-section and choose best one out of them. Introduction: Beam is a structural element that primarily resists loads applied laterally to the beam's axis. It's mode of deflection is primarily by bending. The total effect of all the forces acting on the beam…

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          Aim: To perform flow simulation through Flowbench Objective: To model a flowbench and perform grid dependece test to find the optimal mesh size and to perform flow simulation to find effect of valve lift on mass flowrate. Theory: An flow bench is a device used for testing the internal aerodynamic qualities…

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