1 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Payload Experiment POIWG #19 Overview Presentation August 11, 2005 Marshall Space Flight Center Ref: EMCH Payload Requirements Doc, v1.1

2 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Agenda Purpose of EMCH Description of EMCH Summary of Operations Integration Status Test Status Future Work Issues/Concerns

3 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Elastic Memory Composites (EMC) Benefits EMC enables tremendous reduction in complexity, mass, risk, and cost for future space mechanisms Accommodate high strain without damage over many packaging cycles Zero shock, highly damped deployment EMC is five times less dense, capable of twice the strain, and exhibits ten times more damping than SMAs (Shape Memory Alloys)

4 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMC Hinge/Actuator* Benefits Status High-efficiency deployment hinge/actuator 5x-10x reduction in mass 100x reduction in part count Integral deployment drive and dampening High deployed stiffness and strength No moving parts Developed under MDA SBIR (  I/  II) Flight-hardening tests currently underway Currently being proposed for several flight applications Test article for EMCH Experiment EMC blades *Francis, W., Lake, M. S., Mallick, K., Freebury, G. E., and Maji, A., “Development and Testing of a Hinge/Actuator Incorporating Elastic Memory Composites,” Presented at the 44 th AIAA/ASME/ ASCE/AHS/ASC SDM Conference, April 7-10, 2003, Norfolk, VA, AIAA Paper No

5 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Experiment Goals Simulate a coordinated parallel hinge deployment Determine deployment effects due to asymmetrical hinge heating -Simulates environmental effects or electrical control anomalies Determine deployment profile (tip position vs. time) -Panel twisting? Determine repeatability and robustness over multiple deployments

6 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Top Assembly Aluminum box with Lexan windows Each test assembly contains hinges embedded with heaters -The test assemblies have different heater configurations Each test assembly contain folding and flattening mechanisms 19.2x16.04x8.77 inches Calculated mass is 52 lbs CG location 11.5x8.0x3.1 inches measured from bottom left corner

7 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Test Assembly Descriptions Assembly 1: -Heater A includes both upper hinge tapes -Heater B includes both lower hinge tapes Assembly 2: -Heater string A includes both left side tapes -Heater string B includes both right side tapes Assembly 3: -Identical to Assembly 1 with constant torque resistance

8 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Test Operations Remove experiment from the locker Attach to front rack with Velcro Connect power and data cables Set up video equipment to record hinge movement Set main power toggle switch to “On” Verify main power LED is on and no electrical fault Fold the hinges Deploy the hinges -Capture with video Download data to laptop

9 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Picture

10 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Picture

11 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. EMCH Connector Panel

12 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Folding Hinges 1.Set toggle switch to “Hinge Fold” 2.Wait for both blue “at temperature” LED’s to turn on ~1 minute 3.Pinch tapes 4.Fold hinge 5.Set toggle switch to “Off” and wait for both blue “at temperature” LED’s to turn off ~ 3 minutes

13 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Deploying Hinges Without Spring Resistance 1.Retract pinching cams 2.Retract folding arm 3.Set rotary switches to specified temperature setting 4.Set toggle switch to “Hinge Deploy” 5.After deployment, set toggle switch to “Off”

14 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Deploying Hinges With Spring Resistance 1.Retract pinching cams 2.Retract folding arm until it is off the fold detent 3.Set rotary switches specified temperature setting 4.Set toggle switch to “Hinge Deploy” 5.After deployment, set toggle switch to “Off” 6.Retract folding arm to the deployed detent

15 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Minimum Success Criteria 12 cycles of the experiment A minimum of one week should be between the first experiment cycle and the second experiment cycle to allow the PD to verify that the hardware is operating correctly. Other than the first and second experiment cycle, there are no constraints on the time period between experiment cycles. The data collected and video recorded needs to be downlinked to the ground after each time the hardware is deployed/stowed

16 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Integration Status Payload Integration Agreement – Baselined Interface Control Document – Baselined Payload Verification Plan – in work Safety – Phase 0/I/II safety review has been completed and we are working toward Phase III in October Analysis - Kick Load, PFE, depress and repress analysis have been complete, material certification is in work Procedures - are in work, Table top review held on 8/8/05 HFIT – working to schedule review Software – working to get approval get into the configuration control process Training – completed Training TIM 1-4

17 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Test Status Payload has completed vibe testing successfully Off gassing has been completed EMI planned for September Weight and CG scheduled for September PSIVF scheduled for August PTCS scheduled for November

18 NOTICE: This document includes information that is proprietary to Composite Technology Development, Inc., and is for the sole use the U. S. Government. No part of the document shall be duplicated, used, or disclosed outside the Government. Issues / Concerns Data/Video downlink and retrieval Software approval and loading