26th September 2011 - 03:48 PM
QUOTE (Beer w/Straw+Sep 26 2011, 07:31 AM)
Make it harness the power of dark energy in bursts to overcome gravity.
Or let's resurrect the anti-gravity research (euphemism for levitation). I know no serious scientist want to touch that even with a ten light year pole but never underestimate the politician. They can stick it right up their a$$.
26th September 2011 - 04:45 PM
Just brainstorming on a slow afternoon. It's up to you to do the maths.
Adjustable counter-weighting. Lifts in pairs, one going up as the other goes down, so less counterweighting needed.
Lightest possible frame. How much structural rigidity can you off-load onto the liftshaft?
Lightest possible cables - carbon fibre.
Limit contact with the shaft - maglev guides instead of wheels.
What are the aerodynamic considerations of a lift in a shaft? Worth pumping air around?
Any renewable sources you can harvest? Solar panels on an external shaft? How much energy can you harvest from people trooping in and out of the lift and radiating heat while they're in there?
Better algorithms - I've read that floor selection outside the lift improves efficiency.
Faster (un)loading times - multiple doors?
Continuously variable transmission for optimum motor speed at all times.
Kill the lights when empty and the doors are closed. Use natural light where possible.
Can you press the lift shaft into use as a solar chimney? Provide a secondary service for free?
26th September 2011 - 06:37 PM
@ Kino. Now this is getting serious and mainstream. Works well with guys doing shifts. As the second group goes for lunch the first is arriving back. I'm getting plenty of classical mechanics as well (regenerative braking, CVT and all). There is something there.
Where is dhcracker to model this out?
26th September 2011 - 10:37 PM
I was actually assuming that the OP would fill in the details to work out what, if any, of what I wrote is worthwhile. My willingness to do someone else's job for them for free only goes so far...
27th September 2011 - 03:23 PM
Watching Sindbird hoisting himself up ship masts by cutting ropes whose ends are anchored on the deck and the other looped over the cross-beam and attached to weights didn't inspire much. What set me thinking is seeing George of the Jungle travelling across the jungle fast by means of swings (pendulum). I imagined building several tower a la suspension bridges and with primed cables that will hook to a passenger car as it swings along. Just a little energy boost is needed to overcome friction and air resistance. Can work well in high altitude and it is green! What's that for an idea?