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Technical Paper

Human and Robotic Enabling Performance System Development and Testing

2005-07-11
2005-01-2969
With a renewed focus on manned exploration, NASA is beginning to prepare for the challenges that lie ahead. Future manned missions will require a symbiosis of human and robotic infrastructure. As a step towards understanding the roles of humans and robots in future planetary exploration, NASA headquarters funded ILC Dover and the University of Maryland to perform research in the area of human and robotic interfaces. The research focused on development and testing of communication components, robotic command and control interfaces, electronic displays, EVA navigation software and hardware, and EVA lighting. The funded research was a 12-month effort culminating in a field test with NASA personnel.
Technical Paper

Comparison of Shortened and Standard Liquid Cooling Garments to Provide Physiological and Subjective Comfort During EVA

2004-07-19
2004-01-2347
The shortened liquid cooling/warming garment (SLCWG) developed by the University of Minnesota group was compared with the standard NASA liquid cooling/ventilating garment (LCVG) garment during physical exertion in comfort (24°C) and hot (35°C) chamber environments. In both environmental conditions, the SLCWG was just as effective as the LCVG in maintaining rectal temperature (Tre) in a thermal comfort range; sweat production on the face was less; and subjective perception of overall and local body comfort was higher. The findings indicate that the SLCWG produces the same or greater comfort level as that achieved with the LCVG's total coverage of the body surface.
Technical Paper

Phase VI Glove TMG Evolution

2004-07-19
2004-01-2344
As Extra-Vehicular Activity (EVA) is becoming more challenging and a renewed interest into planetary exploration is being pursued, having a spacesuit glove that is able to perform more complex and dexterous tasks with less hand fatigue is critical. In an effort to build upon an already proven foundation a new investigation has been made into reducing the torque of the Phase VI Glove Thermal Micrometeoroid Garment (TMG) along with improving dexterity and tactility. This paper addresses the makeup of the Phase VI Glove TMG and details the investigation into improving the current design. An investigation into alternative heating methods was also pursued.
Technical Paper

I-Suit Advanced Spacesuit Design Improvements and Performance Testing

2003-07-07
2003-01-2443
The I-Suit has been tested in varying environments at Johnson Space Center (JSC). This includes laboratory mobility testing, KC-135 partial gravity flights, and remote field testing in the Mojave Desert. The experience gained from this testing has provided insight for design improvements. These improvements have been an evolutionary process since 1998 to the present. The design improvements affect existing suit components and introduce new components for systems processing and human/robotic interface. Examples of these design improvements include improved mobility joints, a new helmet with integrated communications and displays capability, and integration of textile switches for control of suit functions and tele-robotic operations. This paper addresses an overview of I-Suit design improvements and results of manned and unmanned performance tests.
Technical Paper

Phase VI Advanced EVA Glove Development and Certification for the International Space Station

2001-07-09
2001-01-2163
Since the early 1980’s, the Shuttle Extra Vehicular Activity (EVA) glove design has evolved to meet the challenge of space based tasks. These tasks have typically been satellite retrieval and repair or EVA based flight experiments. With the start of the International Space Station (ISS) assembly, the number of EVA based missions is increasing far beyond what has been required in the past; this has commonly been referred to as the “Wall of EVA’s”. To meet this challenge, it was determined that the evolution of the current glove design would not meet future mission objectives. Instead, a revolution in glove design was needed to create a high performance tool that would effectively increase crewmember mission efficiency. The results of this effort have led to the design, certification and implementation of the Phase VI EVA glove into the Shuttle flight program.
Technical Paper

Space Shuttle Small EMU Development

2000-07-10
2000-01-2256
With the initial construction of the International Space Station (ISS) underway, NASA has increased the number of astronauts to meet the demands of such a large construction effort. Both American astronauts and international partners will use NASA's space suit, the Space Shuttle Extravehicular Mobility Unit (EMU) to construct ISS. An increasing number of these new astronauts are females who do not adequately fit in the existing sizes of the EMU. In order to accommodate these astronauts, a smaller version of the EMU is under development. This development will examine all aspects of the EMU and design and fabricate new components to provide the astronauts with a space suit which provides adequate fit and is highly mobile.
Technical Paper

Recent Advances in the Development of Spacesuit Gloves

1996-07-01
961424
The continuous development of Extravehicular Activity (EVA) spacesuit gloves has lead to an effective solution for performing EVA to date. Some aspects of the current EVA gloves have been noted to affect crew performance in the form of limited dexterity and accelerated onset of fatigue from high torque mobility joints. This in conjunction with the fact that more frequent and complex EVAs will occur with the fabrication and occupation of Space Station Freedom, suggest the need for improved spacesuit gloves. Therefore, several efforts have been conducted in the recent past to enhance the performance of the spacesuit glove. The following is a description of the work performed in these programs and their impact on the design and performance of EVA equipment. In the late 1980's and early 1990's, a spacesuit glove design was developed that focused on building a more conformal glove with improved mobility joints that could function well at a higher operating pressure.
Technical Paper

Shuttle Space Suit Glove Thermal Protection and Performance Improvement Evolution

1994-06-01
941329
The success of astronauts performing Extra-Vehicular Activity (EVA) is highly dependent on the performance capabilities of their spacesuit gloves. Thermal protection of crewmember's hands has always been a critical concern but has recently become more important because of the increasing role of the crewmember in the manipulation of objects in the environment of space. The utilization of EVA for challenging missions, such as the Hubble Space Telescope (HST) repair and Space Station assembly missions, has prompted the need for improved glove thermal protection. The increased manipulation of hot and cold objects is necessary to complete these complex missions. Thermal protection of the spacesuit glove is accomplished by the Thermal and Micrometeoroid Garment (TMG). The TMG is a multilayered cover that fits over the restraint layer of the spacesuit glove. The TMG is engineered to provide thermal protection for crewmember's hands as well as for the glove bladder and restraint.
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