Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
2015JAT/JAT/src/jat/application/AttitudeSimulator/help/SphericalDamper.html
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
55 lines (51 sloc)
2.17 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | |
| <html> | |
| <head> | |
| <title>Spherical Damper</title> | |
| <meta http-equiv="content-type" content="text/html; charset=Shift_JIS"> | |
| </head> | |
| <body> | |
| <div align="center"> <img src="SphericalDamper.GIF" alt="Title" | |
| width="424" height="55"> | |
| <div align="left"><b><u>Simulation Control</u></b><br> | |
| <b>time step</b>: Time step for the numerical integration routine<br> | |
| <b>time</b>: Duration of the simulation periond in seconds<br> | |
| </div> | |
| <div align="left"> | |
| <div align="left"> | |
| <div align="left"> | |
| <div align="left"><br> | |
| <b><u>Description</u></b><br> | |
| A damper in a rigid spacecraft in a circular orbit may be able to stabilize | |
| the spacecraft <br> | |
| that otherwise goes unstable without it. To simulate such a behavior, | |
| a rigid spacecraft <br> | |
| with a damper of spherical shape was modeled as illustrated.<br> | |
| <br> | |
| <img src="DamperAndSpacecraft.GIF" | |
| alt="Illustration of a damper and spacecraft" width="541" height="364"> | |
| <br> | |
| <br> | |
| <b><u>Inputs</u></b><br> | |
| <b>Ixx</b>, <b>Iyy, Izz</b>                 Principal moments | |
| of inertia<br> | |
| <b>c                     </b>       Damping | |
| Coefficient<br> | |
| <b>j </b>                               | |
|   Spherical damper inertia<br> | |
| <br> | |
| <b><u>Initial Condition</u></b><br> | |
| <b>w1</b>, <b>w2, w3</b>:                   Spacecraft | |
| angular velocities <br> | |
| <b>q1, q2, q3, q4</b>:              Quaternions<br> | |
| <b>alpha, beta, gamma</b>:     Damper angular velocities<br> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <br> | |
| <br> | |
| <br> | |
| </body> | |
| </html> |