|
⇤ ← Revision 1 as of 2013-01-30 20:56:59
Size: 1254
Comment:
|
Size: 1254
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 13: | Line 13: |
| ||<2)> thruster to thruster spacing $ S $ || cm ||<)> 17.32 || ||<2)> thruster diameter $ D $ || cm ||<)> 5.00 || |
||<)-2> thruster to thruster spacing $ S $ || cm ||<)> 17.32 || ||<)-2> thruster diameter $ D $ || cm ||<)> 5.00 || |
| Line 20: | Line 20: |
| ||<2)> total area || cm^2^ ||<)> 279.44 || | ||<)-2> total area || cm^2^ ||<)> 279.44 || |
Thinsat Area
Triangular Thinsat area
Assume rounded corners for circular electrochromic thrusters.
Start with two dimensions - thruster diameter D , and thruster-to-thruster spacing S defining the sides of an equilateral triangle within the body of the thinsat. We can decompose the thinsat into three kinds of area:
- the central triangle, between the centers of the thrusters
three outside 120° wedges of thruster
- three outside rectangular strips along the edges of the triangle
thruster to thruster spacing S |
cm |
17.32 |
|
thruster diameter D |
cm |
5.00 |
|
Height |
{ \sqrt{ 3 } \over 2 } S + D |
cm |
20.00 |
Width |
S + D |
cm |
22.32 |
Central Triangle area |
{ \sqrt{ 3 } \over 4 } S^2 |
cm2 |
129.90 |
3 Thruster wedges area |
{ \pi \over 4 } D^2 |
cm2 |
19.63 |
3 edge strips area |
1.5 * S * D |
cm2 |
129.90 |
total area |
cm2 |
279.44 |
|