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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | |
<html> | |
<head> | |
<title>Constant Torque</title> | |
<meta http-equiv="content-type" content="text/html; charset=Shift_JIS"> | |
</head> | |
<body> | |
<div align="center"> | |
<div align="center"> <img src="ConstantTorque.GIF" alt="Title" | |
width="284" height="54"> | |
</div> | |
<div align="left"><b><u>Description</u></b><br> | |
<br> | |
</div> | |
<div align="left">This scenario uses Eulerfs rotational equations of motion | |
to simulate the<br> | |
attitude dynamics of a rigid spacecraft with optional body-fixed, constant | |
<br> | |
torques. Eulerfs rotational equations of motion is found in most of the | |
<br> | |
textbooks on spacecraft dynamics <br> | |
<br> | |
<b><u>Inputs<br> | |
</u></b><br> | |
<b>Ixx</b>, <b>Iyy, Izz</b> Principal moments of inertia<br> | |
<b>M1,M2,M3</b> External torque acting in the b1 | |
direction<br> | |
<br> | |
<b><u>Initial Condition</u></b><br> | |
<br> | |
<b>w1</b>, <b>w2, w3</b>: Spacecraft angular velocities | |
<br> | |
<b>q1, q2, q3, q4</b>: Quaternions<br> | |
<br> | |
</div> | |
</div> | |
<br> | |
<br> | |
<br> | |
</body> | |
</html> |