Nasa and GM Developing Robotic Gloves

General Motors and NASA are jointly developing a robotic glove that auto workers and astronauts can wear to help do their respective jobs better while potentially reducing the risk of repetitive stress injuries.

The Human Grasp Assist device, known internally in both organizations as the K-glove or Robo-Glove, resulted from GM and NASA’s Robonaut 2 (R2) project, which launched the first human-like robot into space in 2011.

R2 is a permanent resident of the International Space Station.

When engineers, researchers and scientists from GM and NASA began collaborating on R2 in 2007, one of the design requirements was for the robot to operate tools designed for humans, alongside astronauts in outer space and factory workers on Earth.

The team achieved an unprecedented level of hand dexterity on R2 by using leading-edge sensors, actuators and tendons comparable to the nerves, muscles and tendons in a human hand.

Research shows that continuously gripping a tool can cause fatigue in hand muscles within a few minutes. Initial testing of the Robo-Glove indicates the wearer can hold a grip longer and more comfortably.

“When fully developed, the Robo-Glove has the potential to reduce the amount of force that an auto worker would need to exert when operating a tool for an extended time or with repetitive motions,” said Dana Komin, GM’s manufacturing engineering director, Global Automation Strategy and Execution. “In so doing, it is expected to reduce the risk of repetitive stress injury.”

For example, an astronaut working in a pressurized suit outside the space station or an assembly operator in a factory might need to use 15-20 pounds of force to hold a tool during an operation but with the robotic glove only five-to-10 pounds of force might need to be applied.

“The prototype glove offers my space suit team a promising opportunity to explore new ideas, and challenges our traditional thinking of what extravehicular activity hand dexterity could be,” said Trish Petete, division chief, Crew and Thermal Systems Division, NASA Johnson Space Center.

Inspired by the finger actuation system of R2, actuators are embedded into the upper portion of the glove to provide grasping support to human fingers.

The pressure sensors, similar to the sensors that give R2 its sense of touch are incorporated into the fingertips of the glove to detect when the user is grasping a tool.

When the user grasps the tool, the synthetic tendons automatically retract, pulling the fingers into a gripping position and holding them there until the sensor is released.

GM and NASA have submitted 46 patent applications for R2, including 21 for R2’s hand and four for the Robo-Glove alone.

The first prototype of the glove was completed in March 2011 with a second generation arriving three months later. The fabric for the glove was produced by Oceaneering Space Systems, the same company that provided R2’s “skin.”

The current prototypes weigh about two pounds and include the control electronics, actuators and a small display for programming and diagnostics.

An off-the-shelf lithium-ion power-tool battery with a belt-clip is used to power the system. A third-generation prototype that will use repackaged components to reduce the size and weight of the system is nearing completion.

“We are continuously looking for ways to improve safety and productivity on the shop floor,” Komin said.

“Our goal is to bring this technology to the shop floor in the near future.”

NASA and GM have a long, rich history of partnering on key technologies, starting in the 1960s with the development of the navigation systems for the Apollo missions.

GM also played a vital role in the development of the Lunar Rover Vehicle, the first vehicle used on the moon.

The history of the spacesuit

Is this an early example of the evolution of the mobile phone. It certainly reminds me of some of the Motorola models that I used to sport as a keen young executive about town. No, its some early and cumbersome, spacesuit models. These have certainly developed and improved over the years, thankfully for the astronauts. Here we show you the evolution and history of the spacesuit.


Astronaut John Glenn, the first American to orbit Earth, is shown here in NASA's first spacesuit, designed for the Mercury programme (1958-1963).

The suits were adapted from US Navy pressure suits for high-altitude flights and not designed to be worn on spacewalks. That's because the suits folded in on themselves at the joints, decreasing the volume in the suit. That increased the pressure in the rest of the suit, making it hard for astronauts to bend their legs or arms. As a result, the suits were used only as protection against emergency losses of pressure. (Image: NASA Headquarters)


Spacesuit design took a step forward during NASA's Gemini programme, which featured the agency's first spacewalk on 3 June 1965. To insulate astronauts from the low pressures and temperature extremes of space, Gemini suits boasted extra layers and balloon-like "bladders" filled with gas to maintain pressure, while also maintaining flexibility.

Gus Grissom (left) and John Young, the crew of the first manned Gemini mission, a five-hour orbital flight on 23 March 1965, are shown here in the suits, which are attached to portable air conditioners to keep the astronauts cool. (Image: NASA Johnson Space Center)

The acid test for the Gemini spacesuit came on 3 June 1965, when astronaut Edward White ventured from the capsule for a 23-minute spacewalk - the first such foray for a US astronaut.

White used a gas-powered gun to manoeuvre in space. Oxygen was provided through an 8-metre 'umbilical' cord connected to the Gemini 4 spacecraft. (Image: NASA Johnson Space Center)


To allow lunar explorers greater flexibility, the Apollo suits were built with bellow-like rubber joints at the shoulders, hips, elbows and knees.

Here engineer Bill Peterson fits test pilot Bob Smyth in an early incarnation of the Apollo suit in 1964. The dark straps are part of a restraint harness for the Lunar Excursion Module. (Image: NASA Johnson Space Center)


By the time of the first Moon landing in 1969, the Apollo suits boasted a backpack that provided enough oxygen for breathing, ventilation and suit pressure for 7 hours of Moon walking. Astronaut Buzz Aldrin is pictured here exploring the lunar surface during the Apollo 11 mission. Although the suits performed well in the six missions to land on the Moon, lunar dust became a worry. Astronauts reported that sharp, abrasive lunar dust damaged the suits, wearing through layers and infiltrating seals.

The Apollo suit had to be relatively light so that astronauts could move around in the Moon's gravity and weighed about 82 kg (180 pounds), including its backpack. Later space shuttle suits, by comparison, were more than 1.5 times as heavy - but they were worn in the weightless environment of low-Earth orbit. (Image: NASA Kennedy Space Center)

NASA astronauts now use a two-piece spacesuit for spacewalks called the Extravehicular Mobility Unit (EMU). Unlike the Apollo suits, which were custom-made to fit each astronaut, the EMU has interchangeable parts that can be used to accommodate a range of body sizes.

The EMU is pressurised at about a third of atmospheric pressure, so astronauts must camp out in a relatively low-pressure airlock before spacewalks to remove nitrogen dissolved in the blood and tissues. Moving too quickly to lower pressures can cause that nitrogen gas to create bubbles and obstruct blood flow, which can sometimes be fatal. The suit can weigh about 180 kg (400 lb) and operate for about 8 hours in space. It has a lifetime of 30 years. (Image: NASA Johnson Space Center)

NASA's EMU suits are not the only gear used for spacewalks. Here, astronaut Mike Fincke wears a Russian Orlan suit while performing work outside the International Space Station during the six-month Expedition 9 mission in 2004. (He and cosmonaut Gennady Padalka were originally going to use US suits but discovered problems with the suits, including a failed cooling unit.)

Unlike NASA's EMU suits, which have separate pants and torso sections, Orlan suits are entered through a hatch at the back. That allows astronauts to get into and out of them quickly without assistance. The suit weighs nearly 110 kg (240 pounds), can spend 7 hours in space and is designed to last for 12 spacewalks. (Image: NASA)

China's Feitan suit had a public debut in September 2008, when one of the astronauts aboard the Shenzhou 7 performed the country's first spacewalk.

The spacesuit is reportedly modelled after Russia's Orlan suit. Here one of the Shenzhou 7 crew members emerges from the spacecraft after landing in north China. (Image: China National Space Administration)

Gloves are possibly the most important part of the spacesuit from an astronaut's perspective. In addition to cranking levers and handling power drills, astronauts use their hands - rather than their feet - as their primary mode of "walking" around their spacecraft during spacewalks. The gloves are pressurised, making it difficult for astronauts to move their fingers.

The Apollo spacesuits used two sets of gloves - an inner layer (left) consisting of cloth-covered pressure bladders, and an outer layer made of cloth, Mylar and a metallic mesh. The outer gloves were used on spacewalks to protect against micrometeorites, scratches and heat. (Image: NASA-JSC)

In May 2007, engineer Peter Homer of Southwest Harbor, Maine, won $200,000 when his design for a spacesuit glove beat NASA's in an agency-sponsored competition. His company, Flagsuit LLC, is building on that design and is working with the firm Orbital Outfitters on spacesuits for suborbital tourist trips.

Homer says that unlike current gloves, which are pleated in a way that causes the fingers to curve like a banana, his gloves bend at the same points where our fingers do. That makes it easier for astronauts to move their fingers - important since spacewalks are so labour-intensive that they often leave astronauts' hands bruised and their fingernails bent backwards. (Image: Flagsuit.com)

For decades, NASA has been working intermittently on a next-generation spacesuit that will offer more flexibility and could be used at higher pressures, to eliminate the need for camping out before spacewalks, or breathing in pure oxygen to avoid decompression sickness, or the bends. The Mark III suit (left), one prototype that began development in the late 1980s, boasts a rear-entry system and bearings at the joints to allow astronauts the ability to kneel and perform other tasks.

In the push to return to the Moon, NASA signed a contract in February 2009 with the firm Oceaneering International, Inc, to develop suits for the crew of the shuttle's replacement, the Orion capsule, which is set to fly as early as 2015. Long-time spacesuit developer Hamilton Sundstrand contested the award, but the two firms now plan to work together on the suits, which are intended to share components with a future suit to be designed for the Moon (right). (Image and illustration: NASA)

So far, suits for spacewalks and moonwalks have had to rely on air to maintain pressure around an astronaut's body. But space farers might be able to wear a slimmer design in the future that could allow them to move more freely. This "Biosuit", developed by MIT engineer Dava Newman and colleagues, uses tight layers of material to maintain pressure.

The suit is patterned with stiff lines that do not extend when an astronaut moves a part of their body. These "lines of non-extension" provide a stiff skeleton but do not restrict an astronaut's movement. The team expects it will take several more years of development before the suits can be used in space. Other researchers are developing high-tech spacesuit materials that could one day heal themselves, generate electricity and kill germs. (Image: Donna Coveney)