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
A bar of length l is clamped at x=0 and loaded with a mass mat x=l.(a) apply these boundary conditions to equation x=A e^(wt+kx)+Be^(wt- kx) and thereby determine an equation from

A car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle ? to the horizontal where sine ? = 1/200. Resistance to motion (apart from gravity) is 1.5 N per kg o

Question: A wire loop smears in a horizontal plane. Alongside the loop is a vertical bar magnet south end up. The bar magnet is divide by the plane of the loop. A person is shi

The energy to which the human ears are sensitive is named as sound. In general all parts of waves are produced in an elastic material phase, Irrespective of while these are listen

The potential because of a continuous charge distribution is the sum of potentials of all the infinitesimal charge elements in which the distribution may be separated i.e.,

what is the substance produced in the liver that acts in the small intestine during digestion?

metre; meter; m The basic SI unit of length, explained as the length of the path traveled through light in vacuum throughout a period of 1/299 792 458 s.

How many types of fibers are there? There is truly only one fiber optic. The word "fiber optics" applies really to a stem of light physics dealing along with the properties of

The current induced in the conductor due change in magnetic field is called eddy current.we study more about this in electro magnetic laws.