Interesting concept, likely to fail from heat in required vs. output. But, who knows until you get there!
My first thoughts are to simplify things a little, its hard to describe what I mean, so stick with me.
1. Lose the wire/pulleys/super dooper screwdriver thingy. A one way normal dynamo (dc) would be easier to make use of the 6000 Watts of input in to
watch a green LED glow
2. I'd have 4 rods all on ONE side in a row, like 4 blokes fishing off a pier.
3. At the top of the rods, have a pin which attaches a straight bar (I'll make some pics in a sec, paint style!)
4. That straight bar will drop at approx the same angle as you have, the trick to the bar is ratchet teeth, like this.
where the O is the rotating end on the Nitinol rod, the N's are one/way teeth, which when the rod bends over, rotate a generator, when the teeth have
done there work, the one way teeth allow it to return (might be a tad noisy).
5. The next phase rod would kick in 90 degree's after, given the 1st rod 270 degree's to recover. Oh the dynamo would obviously have an input gear
which is long allowing for each "kick/teeth drive" assembly.
Do I really have to draw it in Paint? I think/hope you might get the idea.
Interesting concept none the less, destined to fail I'd wager though!
edit on 30-6-2012 by Qumulys because: (no reason given)