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Something that's always been a big troublesome area in exploring space is the suits - specifically, the joints are a pain in the rear. You need some sort of complex design to allow mobility, while still maintaining pressure.
Or do you?
I was thinking of those flexible drinking straws - you know, the ones with the concertina-like section that allow you to move it around. And I thought - why not?
Naturally, if you use the 'straw' approach straight, with no further work, you have problems: differential pressure will cause the concertina section to extend right out, leaving you right with the same problems as a suit without fancy joints.
But what if you simply prevented the concertina section from extending like that (via cord or a simple external metal 'joint')? The elbow section (or knee, or whatever) would have reasonably good mobility for a fairly simple to make suit.
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Well since it is air pressure that makes it difficult to move why not use it to our advantage by applying hydraulics around the joints and pressure sensors to Crete power suits.
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Because that would ADD complexity and weight?
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Because that would ADD complexity and weight?
Oh, come on I want to be supper man. :band:
Anyway consider this hydraulic like system. Your arm applies pressure to the suit like you want to contract your biceps. A bag of fluid fills up above where your biceps would be on the suit. The bag will natural want to take a circular shape. A cord goes over top of the bag anchored on one side and attached to a pulleys on the other side. The cord goes around the pulley and attaches the forearm part of a suit. The whole system acts like a leaver. The plus of this design is it is more forgiving because if you want to move against the direction the sensors start to move you can because the bag is a compressible fluid. Of course the real challange is the fingers.
I think that pneumatics would be the fastest. One pump could be used to push the fluid to a highly pressurized compressible state. Valves could open to quickly fill up any leaver bladder. Other values could open to quickly drian the bladder into a collection bladder where it is repumped back to the source.
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