1. Structures and Mechanisms - Peer Design Review -
Jen Getz
Anthony Lowrey
Grayson McArthur
Tim Shilling
Terry Song
11/16/2018

2. - Table Of Contents - Structure Deployable Block Diagram
Needed from other Teams

3. Structure Revision C Dimensions: 18.15in x Ø17.75in Mass: 5.78 kg
Material: Aluminum 6061
* All dimensions are in inches *

4. Revision C
Mounting Holes
* All dimensions are in inches *
Side
Top

5. Revision C
Clearance
* All dimensions are in inches *
Side
Bottom
Top

6. Boxes Tall Components Short Components Benefits
* Less wasted material = Lower Cost
* Internal components more accessible
* Mounting is more flexible

7. Boom Deployment
Open Loop System (Push tip mass away with springs and let the system deploy on its own)
Mini-Lightband release ring or Hop Release

8. Hight Output Paraffin Actuator (H.O.P)
Pin Puller
Less then 120g
Small, only about 3 inches tall and ¾ inch diameter
50 lbs of force
Activated with 28V at 18 watts, which heats up the wax inside the piston, expanding it and causing the pin puller to move

9. FITs solar Array Deployment
Thin Film Solar Arrays
FITs solar Array Deployment

10. One H.O.P = Multiple Deployments

11. FITs and Aerofins Release Mechanism
Spring Pushes Latch
H.O.P Released
Pin Released

12. Aerofins and FITS solar Arrays
Input and Control
Aerofins and FITs Solar Arrays
H.O.P
18 28V
for 1.5 minutes
Composite Hinges
10 28V per Hinge
for 1 minute
2-4 Hinges required
High/Low output
(Switch signaling final
released position)
High/Low output
(Switch signaling final
deployed position)

13. Boom Input and Control OR H.O.P 18 watts @ 28V for 1.5 minutes
Lightband Separator
10 12V
for 1 minute
High/Low output
(Switch successful separation
and final deployed position)

14. (Switch signaling final
Antenna
Input and Control
Solenoid
5watts at 12 V
High/Low output
(Switch signaling final
deployed position)

15. Summarized Structure’s Needs
7-9 hi/low output lines, signaling various stages of deployment
2 Solenoids, 5watts at 12V (May not be needed)
1 or 2 H.O.Ps, 18 28V for 1.5 minutes
1 possible Lightband Separator, 10 12V for 1 minute
4 total, 2 at a time deployment Composite Hinges, 10 28V per Hinge for 1 minute