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15th CEAS/AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar June 8-11, 1999 Toulouse, France *Seminar & Program *Registration *Hotel *Transportation *Activities

PARACHUTE MATERIALS TECHNOLOGY

NOTE: Seminar attendees visiting CAP's Labs must provide the Administrative Chairman (Jean-Francois Vergnolle) with business and home address and Passport data for clearance, no later than June 1, 1999.

08:00 - 08:45

Registration and coffee

08:45 - 09:00

Welcome and program overview

Dr. J. Potvin, Seminar Chair

09:00 - 10:30

Modelling of Dynamic Stress-Strain Response of Woven Fabric

Professor C. M. Pastore, Philadelphia College of Textiles and Science

10:30 - 11:00

Coffee Break

11:30 - 12:30

The Degradation and Stabilization of Nylon Yarns and Fabrics

Professor S. M. Hudson, College of Textiles, North Carolina State University

12:30 - 13:30

Lunch

13:30 - 14:00

Travel to Le Centre Aeroporte de Toulouse (CAP)

14:00 - 15:30

Strategy for Automating Seam Joining for Parachute Manufacturing

(Lessons Learned from the Military Apparel Industry)

Professor T. G. Clapp, College of Textiles, North Carolina State University

15:30 - 16:00

Coffee Break

16:00 - 16:45

Simulation of Aging of Textile Elements

Mr. C. Monin, Centre Aeroporte de Toulouse

16:45 - 18:00

Tour of the CAP Textiles Laboratory

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Modelling of Dynamic Stress-Strain Response of Woven Fabric
Professor C. M. Pastore, Philadelphia College of Textiles and Science

• 1. Introduction
  • 1.1 Geometrical Modelling
  • 1.2 Pierce's Geometrical Modelling
  • 1.3 Kawabata's Uniaxial Deformation Theory
• 2. Measure of the Fabric Dimensional Parameters
  • 2.1 Yarn Diameter
  • 2.2 Fabric Thickness
• 3. Measure of the Yarn Mechanical Properties
  • 3.1 Compression Test
  • 3.2 Yarn Tensile Properties
• 4. Bibliography

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The Degradation and Stabilization of Nylon Yarns and Fabrics
Professor S. M. Hudson, College of Textiles, North Carolina State University

• 1. Introduction
• 2. Mechanical and Chemical Properties of Nylons
• 3. The Thermal- and Photo-degradation of Nylon
• 4. Stabilization of Polyamides
  • 4.1 Antioxidants
  • 4.2 Secondary Antioxidants: Peroxide Decomposers
  • 4.3 Light Screeners
  • 4.4 Ultraviolet Absorbers
  • 4.5 Excited State Quenchers
• 5. Effects of Mechanical Loading and Exposure to Aggressive Environments on Nylon Fibers
• 6. Future Trends
• 7. References

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Strategy for Automating Deam Joining for Parachute Manufacturing
(Lessons Learned from the Military Apparel Industry)
Professor T. G. Clapp, College of Textiles, North Carolina State University

Abstract

Manufacturers of aerodynamic decelerator systems are facing increased demands to reduce manufacturing costs, improve quality, and retain a skilled workforce. Standard, approved specifications for manufacturing aerodynamic decelerator systems have been based on the use of traditional sewn seam construction methods. Until alternative joining methods are approved and accepted, manufacturers will be faced with the challenge to improve manufacturing within the constraints imposed by traditional seaming methods. A strategy for integrating technology into a sewn seam manufacturing process is presented. The strategy is based on the design and construction of customized commercial subsystems to aid or eliminate manual functions such as moving, guiding, folding, and inspecting using existing "building blocks" of affordable technology. Case studies are presented to demonstrate how the strategy is employed to produce customized commercial technologies to semi-automate fabric assembly and monitor seam quality at the sewing station. Actual results from the implementation of this strategy have resulted in multiple improvement opportunities that include: 1) increased productivity, 2) higher quality, 3) reduced scrap, 4) reduced training costs, and 5) reduced skill requirements.

Session Chairs: M. Accorsi, W. Garrard

Authors: P. Delurgio
Title: Evolution of the Ringsail Parachute

Authors: A. Witkowski
Title: Mars Pathfinder Parachute System Performance

Authors: J. Stein, R. Machin, and J. Muratore
Title: An Overview of the X-38 Prototype Crew Return Vehicle Development and Test Program

Authors: M. Bos and J. Offerman
Title: Post-Flight 503 Evaluation of the Ariane-5 Booster Recovery System

Authors: T. Leveugle and D. Reinhard
Title: The Atmospheric Re-entry Demonstrator (ARD) - A Successful Recovery at Sea

Authors: C.L. Jones
Title: Accelerated Services for the ADS: The Linda Hall Library of Science, Engineering & Technology.

Session Chairs: G. Brown, A. Taylor

Authors: S. Dellicker and J. Bybee
Title: Low Cost Parachute Guidance, Navigation, and Control

Authors: A. Taylor, R. Sinclair and R. Allemby
Title: Design and Testing of the Kistler Landing System Parachutes

Authors: M. Butler
Title: Design, Development and Testing of Parachutes using the BAT Sombrero Slider

Authors: M. Kostelezky and G. Schmitt
Title: MIRKA: Parachute System Development and Layout

Authors: R. Thomas
Title: Design and Development of a Small Universal Sounding Rocket Recovery System

Session Chairs: V. Behr, J. Potvin

Authors: T. Tezduyar, V. Kalro and W. Garrard
Title: Advanced Computational Methods for 3D Simulation of Parafoils

Authors: C. Ibos, C. Lacroix, P. Bordenave, L. Chuzet and A. Goy
Title: Fluid-Structure Simulation of a 3D Ram-Air Parachute with SINPA Software

Authors: K. Stein, R. Benney, V. Kalro and T. Tezduyar
Title: 3-D Computation of Parachute Fluid-Structure Interactions: Performance and Control

Authors: J. Sahu, H. Edge, K. Heavey, S. Chakravarthy, K. Stein and R. Benney
Title: Comparison of Numerical Flow Field Predictions for Army Airdrop Applications

Authors: T. Chatzikonstantinou
Title: Problems in Ram Air Wing Modeling and Their Solution in the Three Dimensional Simulation Code "PARA3D"

Authors: Y. Mosseev
Title: The Decelerator Pitch-Dependent Performances Prediction Based on 3D Aeroelastic Analysis

Session Chairs: A. Bennett, T. Lott

Authors: G. Brown, B. Norton and J.S. Lingard
Title: Inertially Controlled Recovery System

Authors: G. Brown, R. Haggard and R. Benney
Title: A New Pneumatic Actuator: Its Use in Airdrop Applications

Authors: E. Fallon and A. Taylor
Title: Landing System Design Summary of the K-1 Aerospace Launch Vehicle

Authors: J. Lis and L. Tavernetti
Title: C-17 Dual Row Airdrop System

Authors: W. Zhongwen
Title: Investigation of Parachute Deployment Assembly for Drones

Authors: J. Evrard and A. Vargas
Title: New Recovery Systems for Stratospheric Balloon Gondolas

Session Chairs: C. Schroeder Iacomini, G. Thibault

Authors: J. Hogue, F. Anderson, C. Pelz, R.W. Allen, S. Markham and A. Harmsen
Title: Enhanced Parachute Simulation Training and Planning

Authors: K. Stein, R. Benney, V. Kalro, T. Tezduyar, T. Bretl and J. Potvin
Title: Fluid-Structure Interaction Simulations of a Cross Parachute: Comparison of Numerical Predictions with Wind Tunnel Data

Authors: V. Behr, W. Wolfe, C. Peterson and C. Hailey
Title: An Overview of the Development of a Vortex Based Inflation Code for Parachute Simulation (VIPAR)

Authors: R. Benney, K. Stein, W. Zhang, M. Accorsi and J. Leonard
Title: Controllable Airdrop Simulations Utilizing a 3-D Structural Dynamics Model

Authors: T. Chatzikonstantinou
Title: Ram Air Wing Design Practice with the Three Dimensional Simulation Code "PARA3D"

Authors: M. Accorsi, K. Lu, J. Leonard, R. Benney and K. Stein
Title: Issues in Parachute Structural Modeling: Damping and Wrinkling

Session Chairs: M. Accorsi, M. Steinkopf

Authors: J. Smith and T. Bennett
Title: Development of the NASA X-38 Parafoil Landing System

Authors: C. Schroeder Iacomini and C. Cerimele
Title: Lateral-Directional Aerodynamics from a Large Scale Parafoil Test Program

Authors: C. Schroeder Iacomini and C. Cerimele
Title: Longitudinal Aerodynamics from a Large Scale Parafoil Test Program

Authors: R. Machin, S. Fitzgerald, P. Royall and M. Walcer
Title: Technique for Measuring Parafoil Deployment and Steady State Loads in the Dispersion Risers and Leading Edge Reinforcement Tape

Authors: F. Martin
Title: Parafoil Aerodynamic Characteristics Derived from Flight Measured Suspension System Loads

Authors: C. Lee and J. Buckley
Title: Cell Pull-Down Method for Parafoil Inflation

Session Chairs: R. Benney, D. Levin

Authors: K. Desabrais and H. Johari
Title: Reynolds Number and Scale Effects on Inflating Parachute Canopies

Authors: J. Potvin, L. Esteve, G. Peek, R. Alamat, R. Benney and K. Stein
Title: Experimental Study of Fluid-Structure Interactions on a Cross Parachute: Comparison of Wind Tunnel and Test Drop Data with CFD Predictions

Authors: D. Lamberson and H. Higuchi
Title: Characteristics of Flow within Concave-Nosed Bodies

Authors: J. Potvin, L. Esteve, G. Peek and R. Alamat
Title: Wind Tunnel Study of Cruciform Parachutes Folded in Various Configurations

Authors: D. Wolf
Title: Parachute Opening Shock

Session Chairs: V. Behr, P. Delurgio

Authors: V. Behr
Title: Development of the Weapon Borne Sensor Parachute System

Authors: A. Witkowski
Title: The Stardust Sample Return Capsule Parachute Recovery System

Authors: G. Brown, R. Haggard, R. Almassy and R. Benney
Title: The Affordable Guided Airdrop System (AGAS)

Authors: A. Taylor
Title: More Recent Advances in Spin Stall Recovery Parachute Systems

Authors: M. Hinada, Y. Inatani, N. Ishii, K. Hiraki and M. Honda
Title: Parachute System of MUSES-C Reentry Capsule

Authors: W. Roeger
Title: Requirements for a Sailplane Rescue System

Session Chairs: D. Wolf, D. McBride

Authors: J. Potvin and G. Peek
Title: Experimental Validation of the Ideal Parachute Model: A Status Report

Authors: D. McBride, J. Henfling and E. Clark
Title: Pressure Data for the Experimental Validation of a Vortex-Based Parachute Inflation Code

Authors: K. Popp, H. Johari and C. Lee
Title: Wind Tunnel Experiments on Characteristics of Small Scale Parachute Inflation.

Authors: K. Yerdon
Title: The Impact of Wind Profiling Capability on Cargo Airdrop Accuracy

Authors: T. Perschbacher and J. Potvin
Title: The Improved Ideal Parachute Model and Its Application to the Inflation Dynamics of Slider-Reefed Ram-Air Parachutes and Round Parachutes.

Session Chairs: J.S. Lingard, W. Gabriel

Authors: T. Jann and K.-F. Doherr
Title: Parafoil Test Vehicle ALEX - Further Development and Flight Test Results

Authors: C. Schroeder Iacomini, C. Madsen
Title: Investigation of Large Scale Parafoil Rigging Angle: Analytical and Drop Test Results

Authors: T. Bennett, J. Smith and R. Fox
Title: Testing & Development of the NASA X-38 Parafoil Upper Surface Energy Modulator

Authors: G. Strickert and T. Jann
Title: Determination of the Relative Motion between Parafoil Canopy and Load Using Advanced Video-Imaging Processing Techniques

Authors: G. Petry and R. Behr
Title: The Parafoil Technology Demonstration (PTD) Project: Lessons Learned and Future Visions

Authors: J. Potvin and G. Peek
Title: In-Flight Study of Cell Pressurization Inside Inflating Smokejumper Parachutes

Session Chairs: A. Dyatt, A. Witkowski

Authors: D. Gardinier and A. Taylor
Title: Design and Testing of the K-1 Landing System Airbags

Authors: K. Heindel and D. Wolf
Title: Parachute Tests for a Missile Descent System

Authors: V. Lialin and V. Morozov
Title: Research of the Parachute Cluster Twisting Process Caused by Heavy Cargo Rotation

Authors: G. Jastrab, P. Mortaloni and C. Blankenship
Title: U.S. Army Test and Evaluation Command (TECOM) Aerodynamic Decelerator Test Capability

Authors: R. Thomas, K. Kline, G. Rosenfield and D. Das
Title: Hybrid Rocket Flight Testing to Develop the Hyperion Sounding Rocket Recovery Systems

Authors: A. Dyatt
Title: C-17 Dual Row Airdrop

Registering in advance saves Conference attendees 500 French Francs (FRF). Advance registration forms must be received by May 2, 1999. Pre-registrants may pick up their materials at the advance registration desk. All those not registered by May 2, 1999, may do so at the on-site registration desk.

• Print a registration form: Registration Form
• Fill out the registration form and mail it to: AAAF
  66, Route de Verneuil
  BP 3002
  78133 Les Mureaux, Cedex, FRANCE
  
• The Seminar and Conference have separate registration fees. Be sure to complete the Registration Form carefully.
• For questions, e-mail AAAF at secr.exec@aaaf.asso.fr

ADS Technology Seminar

ADS Technology Conference

NEW HOTEL INFORMATION AS OF MAY 17

The following three hotels are within 5 minute walking distance to the conference and still have vacancies.

Caution: For all of these hotels, to be elligible for their special fare, please refer to "Aerospatiale-Airbus/Conference AAAF" fare. All the indicated fares are given all taxes included.

• Best Western-Grand Hotel Jean Jaures
  29, Allees Jean Jaures
  31000 Toulouse, France
  Tel: +33 534 41 31 21
  Fax: +33 561 63 15 17
  www.bestwestern.fr
  Special Room rate: Single/485 FRF and Double/545 FRF (complimentary Breakfast)
  
  
• Citadines-Wilson (Room with equipped kitchen, oven, fridge)
  8, Blvd de Strasbourg
  31000 Toulouse, France
  Tel: +33 561 99 42 42
  Fax: +33 561 99 07 55
  www.citadines.com
  special room fare: 305 FRF(1 or 2 persons & 60 FRF for daily housekeeping)
  
  
• Hotel Ours Blanc
  2, Rue Victor Hugo
  31000 Toulouse, France
  Tel: +33 561 21 62 40
  Fax: +33 56123 62 34
  Special room fare: 310 FRF
  

The following three hotels are fully booked
AAAF has made arrangements for a block of rooms at 3 different hotels, all located in downtown Toulouse within a 5 minute walking distance to each other.

• Seminar & Conference will be held at Hotel Sofitel, 84 Allées Jean Jaures, 31000 Toulouse. For reservations, call +33-(0)561 10 23 51 or Click Here. Room rates are 570 FRF for singles and doubles, all taxes included.
  
  
• Hotel Mercure Saint Georges, Rue Saint Jérôme, 31000 Toulouse. For reservation call +33-(0)561 23 11 77 Room rates are 450 FRF for singles and doubles, all taxes included.
  
  
• Hotel Mercure Wilson, 4 Rue Labéda, 31000 Toulouse. For reservation call +33-(0)561 21 21 75. Room rates are 450 FRF for singles and doubles, all taxes included.
  
  

Please specify in advance the time and date of arrival and departure and identify yourself with the AAAF Conference. These rooms will be held for AAAF until April 15, 1999, and then released for use by the general public. Sofitel and Mercure Hotels require that all reservations be guaranteed. Rooms will be attributed on a "first come first served" basis. All hotels feature an underground toll car park with a limited number of parking lots (70 FRF/24 h at Sofitel) but several underground public toll car parks are available in the immediate vicinity. Parking a car in the streets is a challenging task.

• Air Links: Sofitel Hotel is approximately 10 km (6 miles)/ 15 mn from the Toulouse International Airport. A shuttle bus runs every 20 minutes to the city center, fare is 23 FRF one way. Closest stop is at the Matabiau Railway Central Station, at a 2 mn walking distance to the Sofitel Hotel. Two airlines operate 43 return flights a day to and from Paris-Orly (1h10 flight time) and Paris-Charles de Gaulle (1h20) Airports, making international connections very easy. Other very convenient gateways to Toulouse are London-Gatwick or Heathrow and Amsterdam-Schipol International Airports.
  
  
• Rail Connections: Toulouse Matabiau Central Railway Station is at 1 block from the Conference Site; 15 trains a day to Paris, among them 4 are TGV (High Speed Train) with a 5h30 travel time.
  
  
• Road Links: Toulouse is the node of several toll motorways going to Barcelona (Spain), Bayonne, Bordeaux, Lyon and Montpellier-Nice.

• City Reception: There will be a reception on Wednesday evening at 6:30 pm at the Capitole, the historical Toulouse's Town Hall, in the "Salle des Illustres" (Capitouls' Hall of Fame) which provides panoramic view of the Capitole Square, the heart of the city. Town Hall is some blocks away from the Conference site; bus transportation will be provided but walking through crowded shopping streets is advised. The reception is included in the registration fee. Spouses of full Conference registrants may attend at no additional charge.
  
  
• Awards Banquet: The Awards banquet will be held Thursday evening at 7:00 pm in a large room of the "Hotel Dieu" a former hospital founded in the 16th Century and now used as a museum. This dining room looks on to the Garonne river banks and offers a beautiful view over the historical part of the city. The banquet is included in the registration fee. Additional tickets may be purchased at the AAAF registration desk. Spouses of full Conference registrants may attend at no additional charge.
  
  
• Spouse Program: Spouses are invited to meet at 8:30 am on Wednesday, June 9, for breakfast in Tournier Conference Room at the Sofitel. A guided visit of the town is offered and will follow, going to the Town Hall, the 700 years old Basilique Saint Cernin as well as many other old churches, mansions, convent and museum. Other events are planned (on-site registration & payment): -Tour of the Carcassonne City: a fortified and inhabited medieval town, with 52 towers, two concentric surrounding walls and 3km of ramparts. -Cruise & Lunch on a boat sailing on the Canal du Midi, an old ship canal (17th century) belonging to the UNESCO inventory and going across the city.
  
  
• Toulouse Links: *Link 1 *Link 2 *Link 3