[simpits-tech] Motion...

Sat, 18 Jan 2003 11:38:01 -0500

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This whole area of motion simulation and "force cueing" sure ain't easy.  My current approach is to integrate
the following elements for immersion:

  a.. Head contraption that contains HMD/headtracking(6-DOF roll,pitch, yaw) and "helmet loading" 3-DOF(x,y,z)
  b.. G-suit - sim --> electronic pressure regulator --> g-suit
  c.. G-seat- butt and back inflatable sections to give acceleration, roll, and pitch cues
  d.. High frequency transducer (woofer) for turbulence, wheel vibration, damage vibration etc...
  e.. Maybe a motion platform with ??? axes; if I can figure out the theory and if it's useful for combat
aircraft.
I've got the G-suit working with Falcon4 and have done some testing of the helmet loading in one axis -->
promising.  As mentioned, the latency and integration of the various cues will be critical to success: no sim
sickness and believability. :)

Craig R.

-----Original Message-----
From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of Roy Coates
Sent: Saturday, January 18, 2003 8:59 AM
To: simpits-tech@simpits.org
Subject: RE: [simpits-tech] Motion...

On Fri, 17 Jan 2003, Craig Rochester wrote:

> Sending just the pitch, roll, and yaw data directly to a motion platform
> does not produce the correct motion cues for real flight.

You can get away with limited motion for something like a big fat heavy,
but imagine what you need to do to simulate a half dozen fast rolls in an
F-22 with a roll-rate of over 360'/sec !

Roy.

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<DIV>This whole area of motion simulation =
and "force=20
cueing" sure ain't easy.&nbsp; My current approach is to integrate the =
following=20
elements for immersion:</DIV>
<DIV>&nbsp;</DIV>
<UL dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
 <LI>Head contraption that contains=20
 HMD/headtracking(6-DOF roll,pitch, yaw) and&nbsp;"helmet loading"=20
 3-DOF(x,y,z)</LI>
 <LI>G-suit - sim --&gt; electronic =
pressure=20
 regulator --&gt; g-suit</LI>
 <LI>G-seat- butt and back inflatable =
sections to=20
 give acceleration, roll, and pitch cues</LI>
 <LI>High frequency transducer =
(woofer) for=20
 turbulence, wheel vibration, damage vibration =
etc...</LI>
 <LI>Maybe a motion platform with ??? =
axes; if I=20
 can figure out the theory and if&nbsp;it's =
useful for=20
 combat aircraft.</LI></UL>
<DIV dir=3Dltr>I've got the G-suit =
working with=20
Falcon4&nbsp;and have done some testing of the helmet loading in one =
axis --&gt;=20
promising.&nbsp; As mentioned, the latency and integration of the =
various cues=20
will be critical to success: no sim sickness and believability. =
:)</DIV>
<DIV>&nbsp;</DIV>
<DIV>Craig R.</DIV>
<DIV> -----Original Message----- From:=20
simpits-tech-admin@simpits.org [<A=20
href=3D"mailto:simpits-tech-admin@simpits.org"=20
target=3D_blank>mailto:simpits-tech-admin@simpits.org</A>]On Behalf Of =
Roy=20
Coates Sent: Saturday, January 18, 2003 8:59 AM To:=20
simpits-tech@simpits.org Subject: RE: [simpits-tech] =
Motion... On=20
Fri, 17 Jan 2003, Craig Rochester wrote: &gt; Sending just the =
pitch,=20
roll, and yaw data directly to a motion platform &gt; does not =
produce the=20
correct motion cues for real flight. You can get away with =
limited motion=20
for something like a big fat heavy, but imagine what you need to do =
to=20
simulate a half dozen fast rolls in an F-22 with a roll-rate of over =
360'/sec=20
! Roy. _______________________________________________<=
BR>Simpits-tech=20
mailing list Simpits-tech@simpits.org <A=20
href=3D"http://www.simpits.org/mailman/listinfo/simpits-tech"=20
target=3D_blank>http://www.simpits.org/mailman/listinfo/simpits-tech</A><=
BR>To=20
unsubscribe, please see the instructions at the bottom of the above =
page.&nbsp;=20
Thanks! </DIV></BODY></HTML>

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