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Vibration Analysis

  1. Feb 26, 2009 #1
    1. The problem statement, all variables and given/known data
    Known :
    - Material : Tungsten
    - Property : G7 - Drill, you can see the picture in here :
    http://www.accuromm.com/drills.html" [Broken]
    - Other information you can find here :
    1. http://www.efunda.com/materials/com...m?MatlPhase=Solid&MatlProp=Acoustic#Acoustic"
    2. http://www.efunda.com/materials/com...atlPhase=Solid&MatlProp=Mechanical#Mechanical
    3. http://en.wikipedia.org/wiki/Tungsten" [Broken]

    For information : I am newbie about dynamic analysis and before this, I am analysis about static only. Can anyone help me solve this problem?? I am appreciated your helpfull and Iam so sorry to makes you busy.If anyone can tell me about the step by step, it's okay to me. o:)
    The question are :
    1. I want to looking for Vibration and critical point
    2. do you know where I can find Structural Damping Coefficient for Tungsten??
    3. How to created fungtion of Power Spectral Density
    4. How to created fungtion of Frequency Responce

    2. Relevant equations
    http://en.wikipedia.org/wiki/Vibration" [Broken]

    3. The attempt at a solution
    I have been try this steps, but I am confucing about the next steps. :confused:
    1. For Yield Stress =550 MPa, Ultimate Strength = 550-620 MPa (as known in wikipedia)
    2. Allowable/Permissible Stress= 0.4 (Yield Stress) = 220 MPa
    3. Safety Factor = (ultimate Stress)/(Allowable Stress) = 3
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
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