[simpits-tech] Simulating g

[Ben Jones]

Justin ,

a mate of mine who in highschool built a simulator for driving , around a race track ,( all be it a fairly crap sim ) excuse my outburst ...  to simulate a crash the only thing we could think of to preform this was to rapidly tighten the harness to simulate wacking in to something ie continued forward travel while the car was de-excelerating around you , because we were only using simple car racing software on a 386 , i took the sound out of the soundcard to the speakers and to a graphic equaliser, after much playing around we managed to find a sound frequency which whenever a crash happened was played by the sound card ..if you can get my explanation , then this frequency was fed into a Frequency monotoring circuit which was tuned to this frequency once activated it closed a relay which closed a circuit on a old motorized wheel chair motor through the speed controller and the wheel chair motor whacked into life and pulled on the 4 attachment points of the harness , it took about 3 days of testing before any one was game to actually submit them self to the crush of a car prang, this is how we crudely simulated a crash by pulling on the harness straps.

unfortunatly the car sim doesnot exist any more , the frequency monotoring circuit was designed by one of my electronic teachers at highschool , (ho ironically died in a car crash 3 years ago because he was not wearing  a seat belt )
and for the life of me i cannot rember the frequency the equaliser was set at.

and a wheelchair motor has a Sh*T load or torque if you accendently hook it up without any safety mechanisisms in place , it will hurt enenthe buffest of highly physically built men


this might be of help to you


also if you can desigh a seat which simulates "G" forces , id love to see the sketches , but im still thinking how to simulate in negative g the feeling of breakfast sitting on the top of your stomach, not the bottom ????


regards

BEN   JONES 
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bjones@pipecomp.com.au
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-----Original Message-----
From: Justin Messenger [mailto:jjmessenger@yahoo.com]
Subject: [simpits-tech] Simulating g


 Is there some kind of
pot I can use to control the motor? What should it be
rated?  Also, where would be a good motor for this
use?

Justin

_