Pressure suits allow pilots and astronauts to survive in extreme environments at the edge of Earth's atmosphere and in the vacuum of space. One obstacle that pilots and astronauts face is that gas-pressurized suits stiffen when pressurized and greatly limit user mobility. As a result, a critical need exists to quantify and improve the mobility characteristics of pressure suits. A historical survey and critique of pressure-suit testing methodologies is first presented, followed by the results of recent pressure suit testing conducted at the MIT Man-Vehicle Laboratory (MVL). MVL researchers, in cooperation with the David Clark Company (Worcester, MA), used an anthropometrically-realistic robotic space suit tester to quantify pressure suit mobility characteristics of the S1034 Pilot Protective Assembly (PPA), a pressure suit worn by U-2 pilots. This suit was evaluated unpressurized, at a vent pressure of 5.5 kPa (0.8 psi), and at an emergency gauge pressure of 20.7 kPa (3 psi). Joint torque data was collected for elbow flexion/extension, shoulder flexion/extension, shoulder abduction/adduction, and knee flexion/extension motions. The aim of this study was to generate a robust baseline mobility database for the S1034 PPA to serve as a point of comparison for future pressure suit designs, and to provide recommendations for future pressure garment testing.
|Original language||English (US)|
|Title of host publication||41st International Conference on Environmental Systems 2011, ICES 2011|
|State||Published - 2011|
|Event||41st International Conference on Environmental Systems 2011, ICES 2011 - Portland, OR, United States|
Duration: Jul 17 2011 → Jul 21 2011
|Name||41st International Conference on Environmental Systems 2011, ICES 2011|
|Other||41st International Conference on Environmental Systems 2011, ICES 2011|
|Period||7/17/11 → 7/21/11|
Bibliographical noteFunding Information:
Acknowledgements This work was funded by the Federal Ministry of Education and Research (BMBF), Germany within the InnoProfile Transfer research group “4DnD-Vis” (www.4dndvis.de) and the Research School on ‘Service-Oriented Systems Engineering’ of the Hasso Plattner Institute. We would like to thank virtualcitySYSTEMS for providing datasets.