rec.autos.simulators

When is a REALISTIC bike sim coming out?

Asbj?rn Bj?rnst

When is a REALISTIC bike sim coming out?

by Asbj?rn Bj?rnst » Tue, 04 Jun 2002 18:39:36


> it's perfectly possible to steer without counter-steering.  try
> steering the bike without holding the handlebars.  you'll see.     :)

You can countersteer without holding the handlebars, just use your ass
instead.
--
  -asbjxrn
Goy Larse

When is a REALISTIC bike sim coming out?

by Goy Larse » Tue, 04 Jun 2002 19:00:52


> Did any of you guys see my post with this in it?
> http://europe.thrustmaster.com/products/d_prd.php?p=T89&fam=4

I have it in the shop, had a brief look at it without actually
connecting to a PC and firing up a game or anything, and it looks like
it *could* be a decent product

Of course, like most Thrustmaster products, it's got a very "plastic
feel" to it

Beers and cheers
(uncle) Goy

"The Pits"    http://www.theuspits.com/

"A man is only as old as the woman he feels"
--Groucho Marx--

Gunnar Horrigm

When is a REALISTIC bike sim coming out?

by Gunnar Horrigm » Tue, 04 Jun 2002 21:27:17



> > it's perfectly possible to steer without counter-steering.  try
> > steering the bike without holding the handlebars.  you'll see.        :)

> You can countersteer without holding the handlebars, just use your ass
> instead.

use my ass on the handlebars? :D

--
Gunnar
    #31 SUCKS#015 Tupperware MC#002 DoD#0x1B DoDRT#003 DoD:CT#4,8 Kibo: 2
               "a language is a dialect with an army and a navy"

Sebastien Tixie

When is a REALISTIC bike sim coming out?

by Sebastien Tixie » Tue, 04 Jun 2002 23:27:45




>> A friend of mine has a SBK racing training at laguna seca at the SBK
>> schools, and they had a motorbike with 2  steering, one was working
>> and the other was jsut a fixed pol on the fuel tank. They had to make
>> the motorbike turn using the fixed pol , and by leaning their body.
>> Weel, the motorbike didn't turn at all ;o) The gyroscopic effect was
>> too strong.

>if I understand you correct, that has nothing to do with gyroscopic
>effects. are you saying the forks didn't turn?  in that case, the bike
>can't turn, because the front wheel can't turn.

Yes the forks didn't turns. And the gyroscopic effect has something to
do . Why do you think the bike don't fall when the wheel are turning :
gyroscopic effect.

Gyroscopic effect : force that counter act other force that tend to
change the orientation of the rotation axis. It's depedent of mass and
angular velocity.

At low speed certainly, but certainly not at high speed, if drivers
lean on the bike, its to lower the gravity center so the bike can take
the turn faster without need to lean the bike more, that's not to help
the bike to lean .

Asbj?rn Bj?rnst

When is a REALISTIC bike sim coming out?

by Asbj?rn Bj?rnst » Wed, 05 Jun 2002 01:30:06





> >> A friend of mine has a SBK racing training at laguna seca at the SBK
> >> schools, and they had a motorbike with 2  steering, one was working
> >> and the other was jsut a fixed pol on the fuel tank. They had to make
> >> the motorbike turn using the fixed pol , and by leaning their body.
> >> Weel, the motorbike didn't turn at all ;o) The gyroscopic effect was
> >> too strong.

> >if I understand you correct, that has nothing to do with gyroscopic
> >effects. are you saying the forks didn't turn?  in that case, the bike
> >can't turn, because the front wheel can't turn.

> Yes the forks didn't turns. And the gyroscopic effect has something to
> do . Why do you think the bike don't fall when the wheel are turning :
> gyroscopic effect.

Ever tried to ride a bicycle through a puddle and watch the resulting
tracks?  You will see that the front wheel keeps steering back and
forth to keep the wheels below the center of gravity, much the same
way you balance a broom in your hand. That is why the bike don't fall.
Gyroscopic effects are small, if you don't believe me, read this QA by
a bikeriding physics professor:
http://ist-socrates.berkeley.edu/~fajans/Teaching/MoreBikeFiles/BikeQ...

And if your physics is up to scratch, read his paper:
http://socrates.berkeley.edu/~fajans/pub/pdffiles/SteerBikeAJP.PDF

A guy called David Jones also made bicycles with extra wheels rotating
in the opposite direction to cancel out the gyroscopic effects. It
turned out the handling characteristics were only sligtly different
from a normal bike, and could be ridden no-hands.
--
  -asbjxrn

Gunnar Horrigm

When is a REALISTIC bike sim coming out?

by Gunnar Horrigm » Wed, 05 Jun 2002 06:16:47





> >> A friend of mine has a SBK racing training at laguna seca at the SBK
> >> schools, and they had a motorbike with 2  steering, one was working
> >> and the other was jsut a fixed pol on the fuel tank. They had to make
> >> the motorbike turn using the fixed pol , and by leaning their body.
> >> Weel, the motorbike didn't turn at all ;o) The gyroscopic effect was
> >> too strong.

> >if I understand you correct, that has nothing to do with gyroscopic
> >effects. are you saying the forks didn't turn?  in that case, the bike
> >can't turn, because the front wheel can't turn.

> Yes the forks didn't turns. And the gyroscopic effect has something to
> do . Why do you think the bike don't fall when the wheel are turning :
> gyroscopic effect.

what are you talking about?  the bike _does_ fall.

well I don't know what to say.  try it.  it works.  it doesn't work
well, of course, but it does work.

--
Gunnar
    #31 SUCKS#015 Tupperware MC#002 DoD#0x1B DoDRT#003 DoD:CT#4,8 Kibo: 2
             "a poster is a human being or the software equivalent"

Sebastien Tixie

When is a REALISTIC bike sim coming out?

by Sebastien Tixie » Wed, 05 Jun 2002 15:00:51

by turning, i meant rolling, not turning, sorry.

Sebastien Tixie

When is a REALISTIC bike sim coming out?

by Sebastien Tixie » Wed, 05 Jun 2002 15:16:38

Well, no, i'm only riding sportbikes, not a runabout ;o)

Very interesting indeed ! I learn something today , cool ;o)

Thank for the link.


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