The 38th Aerospace Mechanisms Symposium

  Williamsburg, Virginia
May 17-19, 2006

Hosted by National Aeronautics and Space Administration and Lockheed Martin Space Systems Company
Organized by the Mechanisms Education Association

Table of Contents

SYMPOSIUM OBJECTIVES

This symposium is concerned with the problems of design, fabrication, test, and operational use of aerospace mechanisms. Emphasis is on hardware developments. The symposium provides a social and technical forum for personnel active in the field of mechanisms technology, as well as providing a source of information for others interested in this field. The symposium rotates annually among eight NASA Centers and attracts papers and attendees from all over the world.

SYMPOSIUM LOCATION

The Marriott in Williamsburg, Virginia is the site for all technical sessions. The telephone number is 1-757-220-2500. Information about the Marriott can be found athttp://marriott.com/property/propertypage/PHFCW. The Marriott is a full-service hotel with restaurants, fitness center and a full business center.

SYMPOSIUM ACTIVITIES

The planned technical and social activities provide an opportunity for attendees to become professionally and personally acquainted. Dress attire is business casual unless noted.

SPACE MECHANISMS COURSE BY LAUNCHSPACE – On Monday and Tuesday, May 15-16, Launchspace is providing a special edition of their space mechanisms course just prior to the symposium in the same hotel as the AMS. To register, go to www.launchspace.com and register for course 1135SE. The price for this course is $595.

This course explores the technologies required for the successful design of moving mechanical assemblies in the space environment and offers a detailed look at many of the key components common to most mechanisms. The high-performance materials required are reviewed. Examples of some of the many types of mechanism will be included for illustration. In addition, the mechanisms relationship and interface with other vehicle systems will be explored. The course includes design and analysis examples to demonstrate the principles involved in understanding how mechanisms should work, and how design margins should be evaluated during the evolution of a program.

Details about the course can be found at launchspace.santasoft.com/1135.htm.
NOTE: Due to the special pricing, each attendee will receive extensive class notes, but the text will not be provided as indicated in the general description.

CHECK IN

On Tuesday evening, May 16, from 6:30-8:30 PM, check in and registration will be at the Group Registration Desk. Symposium materials, including symposium proceedings, will be available, along with light refreshments.

RECEPTION

On Wednesday evening, May 17, a reception with a meal and entertainment will be held at the Marriott from 6:30-9:30 PM. The reception includes supplier displays and is open to all paying attendees and guests. The exhibits will be open for the enjoyment of all attendees.

SYMPOSIUM BANQUET

On Thursday evening, May 18, the symposium dinner and social evening will be held at the Jamestown Settlement, an outdoor living history area with replicas of ships, fort and Indian village to provide a glimpse into American life during the early 1600’s. Transportation will be provided from the symposium hotel. Dress attire is casual – tour involves walking outside on dirt pathways and even some climbing if you want to tour the ships (seehttp://www.historyisfun.org/jamestown/jamestown.cfm).

NASA LANGLEY RESEARCH CENTER FACILITIES TOUR

On Friday afternoon, May 19, there will be a special tour of the Langley Research Center and may also include the Langley Air Force Base. The tour is open to all attendees and guests. Buses depart from the hotel and return to the hotel after the tour. Please indicate on the registration card if you and your guests will participate. NOTE: Foreign Nationals (see listing of designated countries) interested in taking this facility tour must provide additional information for access by as early as March 23; form due by April 21 forothers. Please fill out the Foreign Visitor Form and send to :

Tammy Spellman
NASA Langley Research Center
Mail Stop 433
Hampton, VA 23681

On Friday afternoon, May 21, there will be a special tour of the Johnson Space Center. The tour is open to all attendees and guests. Buses depart from the hotel and return to the hotel after the tour – one bus will continue on to Houston Hobby Airport. Please indicate on the registration card if you and your guests will participate. NOTE: Foreign Nationals interested in taking this facility tour must provide additional information for access.

GUEST ACTIVITIES

The Williamsburg area offers an array of activities, including Colonial Williamsburg (18th century capital of Virginia), world-class amusement park (Busch Gardens), and historic sites such as Jamestown and Yorktown. Tourist information will be handed out at registration or seewww.williamsburg.com and www.visithamptonroads.com.

PRESENTERS’ MEETINGS

Presenting authors are required to attend a special breakfast on the day of their presentation. This gathering gives the session participants an opportunity to meet their Session Chair and each other, and to review the session arrangements. The Symposium Projectionist will be available to discuss presentation requirements.

SYMPOSIUM INFORMATION

REGISTRATION

Advance registration is requested to facilitate planning and commitments. To register, return theregistration card or submit a letter indicating name, mailing address, affiliation, e-mail address, and citizenship (please indicate if you are a permanent resident of the U.S.). Enclose the registration fee of $395 ($250 for educators, students and retirees). Late registration for the symposium may be done at the hotel on Tuesday evening, May 16, and each day of the symposium. NOTE: If the registration payment is received after April 28, the fee will be $495 for all. This fee covers all sessions, proceedings, break refreshments, reception, symposium banquet, box lunch for two days, and specified bus transportation. Guest tickets are $25 for the reception and $45 for the banquet (guest banquet tickets are $50 if received after April 28).

Please note on the registration card or letter your interest in attending the LaRC Facilities Tour. Also indicate your guest’s interest in attending the tour.

Cash, checks, VISA, MasterCard, American Express, Diner’s Club, and money orders are accepted. Make checks payable to “MEA – 38th Aerospace Mechanisms Symposium”. Checks/money orders must be drawn on a U.S. bank in U.S. dollars. Please do not send foreign currency. Submit payment with the registration card or letter to:

Tammy Spellman
NASA Langley Research Center
Mail Stop 433
Hampton, VA 23681

Phone: (757)864-6026
FAX: (757)864-7798
email: Tammy.L.Spellman@nasa.gov

HOTEL RESERVATIONS

Rooms at the Marriott hotel are offered at the government per diem rate (currently $82 plus tax – single or double) from May 13 to May 21 for attendees. Attendees must make their own reservations directly with the hotel. Please mention the Aerospace Mechanisms Symposium (Code: AMSA) to obtain the special rate and make reservations by April 17 to ensure the special rate. After April 17, the hotel will honor the special rate on a space-available basis only.

Williamsburg Marriott
50 Kingsmill Road
Williamsburg, Virginia 23185
Phone: 1-757-220-2500

TRANSPORTATION

The Williamsburg area is served by three airports – Richmond International Airport (RICwww.flyrichmond.com, Newport News International Airport (PHF – http://www.nnwairport.com/) and Norfolk International Airport (ORF – www.norfolkairport.com). Taxi service and car rentals are available at the airports

DR. GEORGE HERZL AWARD

Each year a plaque is awarded to the author(s) of the “Best Paper.” The award is based on paper content, presentation delivery, and visual aids. This award was established in honor of Dr. George Herzl of Lockheed Martin Space Systems Company, a co-founder of the Aerospace Mechanisms Symposium.

DR. CHARLES COALE AWARD

Each year, the AMS sponsors a child to Space Camp to honor Dr. Charles Coale of Lockheed Martin Space Systems Company. Dr. Coale was the leader of the symposium for more than 20 years and had a special interest in helping children.

SYMPOSIUM SCHEDULE

TUESDAY, 16 MAY 2006

6:30-8:30 CHECK-IN (Promenade Area)
Marriott Group Registration Desk

WEDNESDAY, 17 MAY 2006

8:00 Wednesday Presenters’ Breakfast – Terrace Room

8:00 CHECK-IN AND REFRESHMENTS – Auditorium

9:00 INTRODUCTORY REMARKS – Auditorium
James Wells, Host Chairman
NASA Langley Research Center, Hampton, VA
Stuart Loewenthal, General Chairman
Lockheed Martin Space Systems, Sunnyvale, CA

CENTER WELCOME
Stephen G. Jurczyk, Deputy Director
NASA Langley Research Center, Hampton, VA

9:30 SESSION I – ACTUATORS
Stephen Sandford, Session Chair
NASA Langley Research Center, Hampton, VA

o Precision Linear Actuators for the Spherical Primary Optical Telescope Demonstration Mirror
Jason Budinoff & David Pfenning, NASA Goddard Space Flight Center, Greenbelt, MD
o The CRISM Motor/Encoder Assembly and Diaphragm Bearing Assembly Design
Jeffrey Lees & Ed Schaefer, Johns Hopkins University Applied Physics Laboratory, Laurel, MD
o Gear Teeth Particles and Bearing Failures
William Greenwood and Jeffrey Dabling, Sandia National Laboratories, Albuquerque, NM
o Failure of Harmonic Gears During Verification of a Two-Axis Gimbal for the Mars Reconnaissance Orbiter Spacecraft
Michael Johnson, Jet Propulsion Laboratory, Pasadena, CA; Russ Gehling & Ray Head, Lockheed Martin Space Systems, Denver, CO

11:45 LUNCH BREAK – Box lunch is provided

1:00 SESSION II – MECHANISMS
Ted Hartka, Session Chair
Johns Hopkins University Applied Physics Laboratory, Laurel, MD

o Stacer Driven Deployment: The Stereo Impact Boom
Robert Ullrich, Jeremy McCauley, Paul Turin, Ken McKee & Bill Donokowski, Space Sciences Lab, University of California, Berkeley, CA
o Heritage Adoption Lessons Learned: Cover Deployment and Latch Mechanism
James Wincentsen, Jet Propulsion Laboratory, Pasadena, CA
o Problems and Product Improvements in a Qualified, Flight Heritage Product
Chuck Lazansky & Scott Christiansen, Starsys Research Corp., Boulder, CO

2:30 BREAK

2:45 SESSION III – “BIG PICTURE”
John McManamen, Session Chair
NASA Johnson Space Center, Houston, TX

o SoftRide Vibration and Shock Isolation Systems that Protect Spacecraft from Launch Dynamic Environments
Conor Johnson, Paul Wilke & Scott Pendleton, CSA Engineering, Inc., Mountain View, CA
o Summary of the New AIAA Moving Mechanical Assemblies Standard
Brian Gore, The Aerospace Corporation, El Segundo, CA
o Lessons Learned From the Development, Operation, and Review of Mechanical Systems on the Space Shuttle, International Space Station, and Payloads
Alison Dinsel, Wayne Jermstad & Brandan Robertson, NASA Johnson Space Center, Houston, TX

4:15 SESSION IV – POSTER PREVIEW
Michael Johnson, Session Chair
Jet Propulsion Laboratory, Pasadena, CA

o Reliability and Fault Tolerance in ISS Thermofoil Spaceflight Heaters
Victor Bolton, The Boeing Company, Houston, TX
o Development, Pre-qualification and Application of an Active Bearing Preload System
Simon Lewis, European Space Tribology Laboratory, Warrington, Cheshire, U.K.; Martin Humphries, Sula Systems Ltd., Wotton-under-Edge, Gloucestershire, U.K.
o Development of a Dual Mode D-Strut® Vibration Isolator for a Laser Communication Terminal
Dale Ruebsamen, James Boyd, Joe Vecera & Roger Nagel, Honeywell Defense and Space, Glendale, AZ
o Design and Testing of a Low Shock Discrete Point Spacecraft Separation System
Daryn Oxe, Lockheed Martin Space Systems Company, Sunnyvale, CA; Pete Woll, NEA Electronics, Chatsworth, CA
o Faying Surface Lubrication Effects on Nut Factors
Deneen Taylor, NASA Johnson Space Center, Houston, TX; Raymond Morrison, The Boeing Company, Huntington Beach, CA
o Torque Loss and Stress Relaxation in Constant Torque Springs
Robert Postma, The Aerospace Corporation, El Segundo, CA

6:30-9:30 RECEPTION & DISPLAYS – ADAMS BALLROOM/PROMENADE OF THE MARRIOTT
Invited component suppliers display current products and provide tutorials.

THURSDAY, 18 MAY 2006

7:15 Thursday Presenters’ Breakfast – Terrace Room

7:45 Light Refreshments – Auditorium

8:15 SESSION V – GIMBALS – Auditorium
William Jones Jr., Session Chair
Sest, Inc., Middleburg Heights, OH

o Mechanical Design of a Multi-Axis Martian Seismometer
Franck Pécal & Nicolas Paulin, EADS SODERN, Limeil Brévannes, France; Doug Mimoun, IPGP, Saint Maur, France; Gabriel Pont, CNES, Toulouse, France
o Commercial off-the-shelf Components in Reaction Wheels
Andrew Haslehurst, Surrey Satellite Technology Ltd, Guiford, Surrey, U.K.
o Design of the ATMS Scan Drive Mechanism
Curtis Allmon & Dave Putnam, Lockheed Martin Space Systems Company, Sunnyvale, CA
o Lessons Learned From the Windsat BAPTA Design and On-Orbit Anomalies
Steve Koss, Naval Research Laboratory, Washington, D.C.; Scott Woolaway, Ball Aerospace & Technologies Corp., Boulder, CO

10:15 BREAK

10:30 SESSION VI – JWST
Casey DeKramer, Session Chair
Swales Aerospace, Beltsville, MD

o JWST NIRSpec Cryogenic Light Shield Mechanism
Kathleen Hale & Rajeev Sharma, NASA Goddard Space Flight Center, Greenbelt, MD
o Development Tests of a Cryogenic Filter Wheel Assembly for the NIRCam Instrument
Sean McCully, Charles Clark, Michael Schermerhorn, Filip Trojanek, Mark O’Hara,
Jeff Williams & John Thatcher, Lockheed Martin Space Systems Company, Palo Alto, CA
o Cryogenic Nano-Actuator for JWST
Robert Warden, Ball Aerospace & Technologies Corp., Boulder, CO

12:00 LUNCH BREAK – Box lunch is provided

1:00 SESSION VII – BEARINGS & POTS
Dino Christopoulos, Session Chair
Raytheon Space & Airborne Systems, El Segundo, CA

o Space Shuttle Body Flap Actuator Bearing Testing for NASA Return to Flight
Tim Jett, NASA Marshall Space Flight Center, Huntsville, AL; Roamer Predmore, Swales Aerospace, Beltsville, MD; Michael Dube, NASA Goddard Space Flight Center, Greenbelt, MD; William Jones, Jr, Sest, Inc., Middleburg Heights, OH
o Bearing Development for a Rocket Engine Gimbal
Christian Neugebauer, Manfred Falkner, Ludwig Supper & Gerhard Traxler, Austrian Aerospace GmbH, Vienna, Austria
o Effect of Test Environment on Lifetime of Two Vacuum Lubricants Determined by Spiral Orbit Tribometry
Stephen Pepper, NASA Glenn Research Center, Cleveland, OH
o Influence of Oil Lubrication on Spacecraft Bearing Thermal Conductance
Yoshimi Takeuchi, Matthew Eby, Benjamin Blake, Steven Demsky & James Dickey, The Aerospace Corporation, El Segundo, CA
o Mars Exploration Rover Potentiometer Problems, Failures and Corrective Actions
Mark Balzer, Jet Propulsion Laboratory, Pasadena, CA

3:30 BREAK

3:45 SPECIAL PRESENTATION – NASA Engineering & Safety Center, Mechanical Systems Super Problem Resolution Team
John McManamen
NASA Johnson Space Center, Houston, TX
The NESC is an organization established in the wake of Space Shuttle Columbia accident to provide an independent look at high risk, complex technically issues. Presentation will include problems the SPRT has been engaged in and focuses on the Space Shuttle Solid Rocket Booster Holddown Post stud hang up problem and the completed assessment of the Orbiter Rudder Speedbrake gear micro-pitting problem.

5:30-10:30 SYMPOSIUM BANQUET AT JAMESTOWN SETTLEMENT
5:30 Bus leaves Marriott to Jamestown
Dinner and Settlement Tour
10:00 Bus leaves Jamestown for hotel

FRIDAY, 19 MAY 2006

7:15 Friday Presenters’ Breakfast – Terrace Room

7:45 Light Refreshments – Auditorium

8:15 SESSION VIII – TOOLS & AIRCRAFT – Auditorium
Gérard Migliorero, Session Chair
ESA/ESTeC, Noordwijk, The Netherlands

o Mechanism Development, Testing, and Lessons Learned for the Advanced Resistive Exercise Device
Christopher Lamoreaux & Mark Landeck, NASA Johnson Space Center, Houston, TX
o Radarsat Range Adjustment Mechanism Design
Xilin Zhang & Sylvain Riendeau, MDA Space, Inc., Ste-Anne-De-Bellevue, Canada
o Come-Along Tool Development for Telerobotic In-Space Servicing of the Hubble Space Telescope
Jonathan Penn, Swales Aerospace, Beltsville, MD
o Planetary Airplane Extraction System Development and Subscale Testing
John Teter Jr., NASA Langley Research Center, Hampton, VA
o “Digital” SMA-Based Trailing Edge Tab Actuators for Aerospace Applications
Robert McKillip Jr., Continuum Dynamics, Inc., Ewing, NJ
o Development of a Forced Oscillation System for Measuring Dynamic Derivatives of Fluidic Vehicles
Bo Trieu, T. Tyler , B. Stewart, J. Charnock, D. Fisher, E. H. Heim & J. Brandon, NASA Langley Research Center, Hampton, VA; S. Grafton, Vigyan, Inc., Hampton, VA

11:15 PRESENTATION: An Overview of LaRC

11:45 TECHNICAL SESSIONS CONCLUSION
o PRESENTATION OF THE HERZL AWARD
o CLOSING REMARKS
Edward Boesiger, Operations Chairman
Lockheed Martin Space Systems Company, Sunnyvale, CA

1:30 BUSES DEPART HOTEL FOR LaRC TOUR

2:00-4:00 NASA LANGLEY RESEARCH CENTER FACILITY TOUR


James E. Wells, Host Chair, NASA LaRC
Robin Tutterow, Host Co-Chair, NASA LaRC

SYMPOSIUM ORGANIZING COMMITTEE

Stuart H. Loewenthal, General Chairman, Lockheed Martin
Edward A. Boesiger, Operations Chairman, Lockheed Martin

Carlton L. Foster, NASA MSFC
Claef F. Hakun, NASA GSFC
Christopher P. Hansen, NASA JSC
Wayne Jermstad, NASA JSC
Patrice Kerhousse, ESA/ESTeC
Alan C. Littlefield, NASA KSC
Edward C. Litty, JPL
Fred G. Martwick, NASA ARC
Donald H. McQueen, Jr., NASA MSFC
Wilfredo Morales, NASA GRC
Robert P. Mueller, NASA KSC
Fred B. Oswald, NASA GRC
Minh Phan, NASA GSFC
Donald R. Sevilla, JPL
Mark F. Turner, NASA ARC

SYMPOSIUM ADVISORY COMMITTEE

Obie H. Bradley, Jr., NASA LRC (ret)
Robert L. Fusaro, NASA GRC (ret)
Ronald E. Mancini, NASA ARC (ret)
Stewart C. Meyers, NASA GSFC (ret)
William C. Schneider, NASA JSC (ret)