Compute the pitching motion of the spacecraft, Physics

A spacecraft design similar to GEOSAT proposes to use passive gravity-gradient stabilization for pitch attitude control (motion about the y-axis).  The satellite consists of a tip mass, separated from the main satellite body mass by a rigid boom with length 10 m.  The z-body axis is along the boom, and pitching motion is along the y-body axis (which is opposite the angular momentum vector of the orbit; the +y-axis is into the page).  The spacecraft is in circular LEO (altitude = 800 km).  The satellite is axis-symmetric, and the moments of inertia are Izz = 85 kg-m2, and  Ixx = Iyy =2530 kg-m2.

559_Compute the pitching motion of the spacecraft.png

Compute (by hand) the pitching motion of the spacecraft in LEO for an initial pitch angle of 5 deg.  Assume that the only torque acting on the satellite is the gravity-gradient torque and that the initial angular rates are zero and that no roll/yaw motion exists.  Sketch the pitching motion vs. time for one orbital revolution.

Posted Date: 2/19/2013 2:18:03 AM | Location : United States







Related Discussions:- Compute the pitching motion of the spacecraft, Assignment Help, Ask Question on Compute the pitching motion of the spacecraft, Get Answer, Expert's Help, Compute the pitching motion of the spacecraft Discussions

Write discussion on Compute the pitching motion of the spacecraft
Your posts are moderated
Related Questions

What is an effect wheel? A disc of polycarbonate or metal revolving among the lamp and the common end along with holes, slits, patterns or colors.

To work out the gravitational potential energy of an object the equation is: GPE = m x g x h Where: m = the mass of the object (kg) g = gravitational field strength (on earth tha

which circular path in any time in any mation

A 7.25-g bullet is fired from a gun. The muzzle velocity of the bullet is 223 m/s. Suppose that the bullet accelerates at a constant rate along the barrel of the gun before it

describe an activity to show tath sliding friction is less than static friction

What is an alloy? An alloy is a homogeneous hybrid of two or more elements, at least one of which is a metal, and where the resulting material has metallic properties. The resu

Two Stage Rocket Suppose the motion of the two-stage rocket or the corresponding velocity-time graph below. The rocket has two successive fuel stages followed through a free-fa

A long cylindrical volume haves a uniformly distributed charge of density ρ and radius R. Determine the electric field at a point P inside the cylindrical volume at a distance x (x

Dalton's law of partial pressures (J. Dalton) The overall pressure of a mixture of ideal gases is equivalent to the total of the partial pressures of its components; i.e., the