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Homework Help: An axis-symmetric satellite is freely spinning in the space.

  1. Dec 22, 2011 #1
    1. The problem statement, all variables and given/known data
    An axis-symmetric satellite is freely spinning in the space. The moments of inertia and the angular velocity at t=0 are as follows:
    Ix=200kgm2
    Iy=Iz=100kgm2
    wx=10rad/sec
    wy=1rad/sec
    wz=0
    (a) Calculate the angular momentum of the satellite
    (b) What is the nutation frequency observed in the body-fixed frame?
    (c) Sketch the space cone and the body cone.
    (d) Calculate the time required for the body cone to make a revolution around the space cone.


    2. Relevant equations



    3. The attempt at a solution
    ƩM=ΩχH
    Hx=Ixxwx
    Hy=Iyywy
    Hz=Izzwz
    I am not sure about how to deal with nutation frequency and the space/body cones
     
  2. jcsd
  3. Dec 24, 2011 #2
    Re: Satellite

    Try using the euler angles.
     
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