Ground Friction and Resistance Index

All about making tracks for MX Simulator
2StrokeLove
Posts: 265
Joined: Mon Aug 15, 2011 1:49 pm
Team: Privateer
Location: Germany

Re: Ground Friction and Resistance Index

Post by 2StrokeLove »

richy34 wrote:you really love 2 strokes?

wrong topic, not for question... but yes i love why?
Motocross, I LOVE IT!
DJ99X
Posts: 15522
Joined: Tue Jan 15, 2008 11:36 am
Location: Land Down Under

Re: Ground Friction and Resistance Index

Post by DJ99X »

Here are two tiles I used for Budds Creek

friction 1.05 0
friction 0.6 0.1
friction 1.05 0.6
friction 1.2 15
roll_resist 20 50 0


friction 1.05 0
friction 0.8 0.1
friction 1.0 0.6
friction 1.3 12
roll_resist 20 50 0
pulse
Posts: 2053
Joined: Tue Aug 02, 2011 7:06 am

Re: Ground Friction and Resistance Index

Post by pulse »

DJ99X wrote:Here are two tiles I used for Budds Creek

friction 1.05 0
friction 0.6 0.1
friction 1.05 0.6
friction 1.2 15
roll_resist 20 50 0


friction 1.05 0
friction 0.8 0.1
friction 1.0 0.6
friction 1.3 12
roll_resist 20 50 0
thanks
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haggqvist
Posts: 352
Joined: Sun Jan 31, 2010 11:44 am
Location: Sweden

Re: Ground Friction and Resistance Index

Post by haggqvist »

Here's the traction I used on Southwick:

friction 0.25 0
friction 0.58 0.5
friction 1.02 2.5
friction 1.07 7
friction 1.13 60
roll_resist 2 50 0
roll_resist 60 90 30
roll_resist 80 105 60
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vmaki
Posts: 191
Joined: Sat Jun 02, 2012 2:46 pm
Team: Privateer
Location: Suomi, Finland

Re: Ground Friction and Resistance Index

Post by vmaki »

haggqvist wrote:Here's the traction I used on Southwick:

friction 0.25 0
friction 0.58 0.5
friction 1.02 2.5
friction 1.07 7
friction 1.13 60
roll_resist 2 50 0
roll_resist 60 90 30
roll_resist 80 105 60
Thank you kind sir.
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rafagas
Posts: 381
Joined: Sat Dec 31, 2011 12:53 pm
Location: Barcelona, Spain

Re: Ground Friction and Resistance Index

Post by rafagas »

Here are the two tiles I used at Alcarras.

Main track:

friction 1.15 0
friction 1.42 0.15
friction 1.35 2.5
friction 1.25 4
friction 1.13 38
friction 1.22 65
roll_resist 5.0 5.0 10.0


Concrete:

friction 1.15 0
friction 1.32 0.15
friction 1.25 2.5
friction 1.20 4
friction 1.08 38
friction 1.20 65
roll_resist 5.0 5.0 10.0
Image
jlv
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Re: Ground Friction and Resistance Index

Post by jlv »

Most materials have fairly high static friction. You guys want the coefficient to be pretty high at 0 slip, then drop off as the static friction breaks, then raise again as viscous friction takes over. Having the lowest friction coefficient at slip speed 0 only makes sense for an air hockey table.

Even ice has a higher static coefficient:

Code: Select all

Surfaces                    µ (static) µ (kinetic)
Steel on steel              0.74       0.57
Glass on glass              0.94       0.40
Metal on Metal (lubricated) 0.15       0.06
Ice on ice                  0.10       0.03
Teflon on Teflon            0.04       0.04
Tire on concrete            1.00       0.80
Tire on wet road            0.60       0.40
Tire on snow                0.30       0.20
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mxsisboss
Posts: 1702
Joined: Mon Feb 06, 2012 6:11 pm

Re: Ground Friction and Resistance Index

Post by mxsisboss »

Has anyone got a really boggy kinda traction like for a wet track so a bit of a greasy feel combined with the bike slightly bogging?
cr500zd wrote:is there anyway that 500cc bikes will be put into the game?
jlv wrote:I'd say it will definitely happen at some point. Not any time soon though.
mxsisboss
Posts: 1702
Joined: Mon Feb 06, 2012 6:11 pm

Re: Ground Friction and Resistance Index

Post by mxsisboss »

DP Kinda like wet sand at the beach.
cr500zd wrote:is there anyway that 500cc bikes will be put into the game?
jlv wrote:I'd say it will definitely happen at some point. Not any time soon though.
DJD
Posts: 2757
Joined: Thu Oct 02, 2008 12:56 am

Re: Ground Friction and Resistance Index

Post by DJD »

haggqvist wrote:Here's the traction I used on Southwick:

friction 0.25 0
friction 0.58 0.5
friction 1.02 2.5
friction 1.07 7
friction 1.13 60
roll_resist 2 50 0
roll_resist 60 90 30
roll_resist 80 105 60
Could you post the settings you use for Lommel? Or are they similar to southwick?
haggqvist
Posts: 352
Joined: Sun Jan 31, 2010 11:44 am
Location: Sweden

Re: Ground Friction and Resistance Index

Post by haggqvist »

Lommel traction:
friction 0.35 0
friction 1.04 0.2
friction 0.65 2.5
friction 1.08 7
friction 1.13 60
roll_resist 40 95 0
roll_resist 75 115 30
roll_resist 95 135 60

I just noticed that there's a typo in the first roll_resist line of the Southwick traction; it was supposed to be: roll_resist 20 50 0.
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DJD
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Joined: Thu Oct 02, 2008 12:56 am

Re: Ground Friction and Resistance Index

Post by DJD »

Thank you.
137
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Team: LCQ Studios / rF

Re: Ground Friction and Resistance Index

Post by 137 »

Does anybody of a good muddy traction?
If you enjoy what I make, donate to the cause 8) It's very much appreciated!!
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Shadow
Posts: 2769
Joined: Sun Dec 02, 2007 5:10 pm
Team: FSK
Location: Finland

Re: Ground Friction and Resistance Index

Post by Shadow »

137 wrote:Does anybody of a good muddy traction?
Here's the one from Blackhawk Hollow.

Code: Select all

friction 0.85 3.0
friction 0.55 7.0
friction 0.69 22.0
friction 0.85 40.0
roll_resist 0.15 0.10 25.0
roll_resist 35.0 75.0 50.0
And the one from County Fair MX.

Code: Select all

friction 1.0 0.0
friction 0.85 8.0
friction 0.85 22.0
friction 0.99500 70.0
roll_resist 15 20 25
roll_resist 25 75 70
roll_resist 25 95 150
Either of them good enough?
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Those who possess strength have also known adversity.
137
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Joined: Wed Jun 24, 2009 1:31 am
Team: LCQ Studios / rF

Re: Ground Friction and Resistance Index

Post by 137 »

Thanks Shadows, BlackHawk is really good.
If you enjoy what I make, donate to the cause 8) It's very much appreciated!!
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