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Astronaut Exercise

Astronaut Exercise
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Bob Hines , Jack Fischer , Melissa Gaskill , Peggy Whitson , Kjell Lindgren , Samantha Cristoforetti , Don Pettit , Satoshi Furukawa , Johnson Space Center , Research Communications Team , Japan Aerospace Exploration Agency , European Space Agency , International Space Station , Advanced Resistive Exercise Device , Cycle Ergometer , Vibration Isolation , Stabilization System , Interim Resistive Exercise Device , Integrated Resistance , Aerobic Training Study ,

Appropriate exercise is an important part of crew health during space missions

Future missions to the moon and Mars must address many challenges, including preventing loss of bone and muscle tissue in astronauts. Research on the International Space Station is helping to address this challenge. ....

Satoshi Furukawa , Don Pettit , Bob Hines , Jack Fischer , Peggy Whitson , Kjell Lindgren , Samantha Cristoforetti , Japan Aerospace Exploration Agency , European Space Agency , International Space Station , Advanced Resistive Exercise Device , Cycle Ergometer , Vibration Isolation , Stabilization System , Interim Resistive Exercise Device , Integrated Resistance , Aerobic Training Study ,

Why a VR headset on the ISS 'really makes a difference' for astronaut exercise

Fancy biking the streets of Denmark while in space? A new VR headset on the ISS lets an astronaut do just that, to expand on mental health studies in orbit. ....

Svanninge Bakker , Andreas Mogensen , European Space Agency , Danish Aerospace Company , Danish Aerospace , International Space Station , Cycle Ergometer , Vibration Isolation , Nord Space Aps ,

"A metamaterial isolator with tunable low frequency stop-band based on " by Qun Wang, Zexin Chen et al.

This paper proposed and prototyped a metamaterial isolator with periodic structure based on magnetorheological elastomer (MRE) and magnet spring. With acoustic metamaterial structure, the proposed metamaterial isolator can generate a stop-band, which means the vibration over specific frequency can't be transferred and will be isolated effectively. Then, with the control of MRE stiffness, the cut-off frequency of the stop-band is tunable, which makes the isolator potential to be adapted to different working situations. The negative stiffness generated by the magnet spring can help to lower the start frequency of the stop-band and enhance the bearing capacity of the metamaterial isolator in vertical direction in the meantime. To verify the feasibility of the proposed device, the magnetic field simulation was first conducted and discussed, and the negative stiffness property of the magnet spring was numerically measured and demonstrated. Then, the mass-spring model of the metamateria ....

Acoustic Metamaterial , Magnetorheological Elastomer , Egative Stiffness , Vibration Isolation ,

The Role of Negative-Stiffness Vibration Isolation in Microbalancing

This article explores the precision of microbalancing and how this is enhanced by negative-stiffness vibration for various high-resolution applications. ....

United States , Aimee Molineux , Trevor Harding , Luis Obispo , Cal Poly Material Engineering Department , Department At California Polytechnic State University Cal , Minusk Technology , Materials Engineering Department At Cal , Minusk Technologydec , California Polytechnic State University , Cal Poly , San Luis Obispo , Materials Engineering Department , Material Engineering , Image Credit , Vibration Isolation ,