UK Karting - Notice Board (2-Stroke Karting) : Re: Loosening pods/bumpers

Notice Board (2-Stroke Karting)

Re: Loosening pods/bumpers
Posted by 'Liam' on 26 Jul 2010 @ 22:39

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LiamJoined: March 2010
Total Posts: 1
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Torsional rigidity tests of any chassis are generally carried out by fixing the chassis where the tyre loads go in at one end (back axle in V blocks close to bearing carriers in this case), and applying a pure torque at the other end. My favoured method on a single seater is a bar across the top damper mounts, and support the one closest to the bar on a "knife edge" or radius. You then put weights on the bar and measure the deflection with a DTI, calculate the angle of deflection, and get a figure for stiffness in Nm/degree. This time round I just tweaked the bar to see if it felt less stiff as I loosened things off. It did.

It's definitely NOT a way of showing what happens on track, it's just a way of figuring out whether you've made a chassis stiffer or floppier in torsion. I'd be surprised if you can figure out what really happens on track, even with strain gauges and a fast logger.

Liam

Message Thread:

Loosening pods/bumpers by 'Aquila' (20 Jul 2010 @ 18:30)

Re: Loosening pods/bumpers by 'Roblin' (20 Jul 2010 @ 18:42)

Re: Loosening pods/bumpers by 'Liam' (20 Jul 2010 @ 19:01)

Re: Loosening pods/bumpers by 'Aquila' (20 Jul 2010 @ 19:04)

Re: Loosening pods/bumpers by 'BanzaiBoy' (20 Jul 2010 @ 20:20)

Re: Loosening pods/bumpers by 'Aquila' (20 Jul 2010 @ 20:30)

Re: Loosening pods/bumpers by 'Traxtar' (20 Jul 2010 @ 21:00)

Re: Loosening pods/bumpers by 'invisibleracing' (20 Jul 2010 @ 22:18)

Re: Loosening pods/bumpers by 'buzzinrussell' (20 Jul 2010 @ 22:49)

Re: Loosening pods/bumpers by 'Traxtar' (20 Jul 2010 @ 23:25)

Re: Loosening pods/bumpers by 'Liam' (20 Jul 2010 @ 23:59)

Re: Loosening pods/bumpers by 'buzzinrussell' (21 Jul 2010 @ 0:51)

Re: Loosening pods/bumpers by 'AlfieMoon' (21 Jul 2010 @ 0:12)

Re: Loosening pods/bumpers by 'Traxtar' (21 Jul 2010 @ 1:05)

Re: Loosening pods/bumpers by 'Ben86' (21 Jul 2010 @ 1:31)

Back to Aquila's question by 'DavyBoy' (21 Jul 2010 @ 9:04)

Re: Back to Aquila's question by 'PaulGarnerTKM' (21 Jul 2010 @ 12:31)

Re: Back to Aquila's question by 'ijsjs' (21 Jul 2010 @ 12:50)

Re: Back to Aquila's question by 'Mikekart95' (21 Jul 2010 @ 13:05)

Re: Back to Aquila's question by 'itpro' (21 Jul 2010 @ 14:55)

Re: Back to Aquila's question by 'Traxtar' (21 Jul 2010 @ 14:41)

Re: Back to Aquila's question by 'AlfieMoon' (21 Jul 2010 @ 15:35)

Re: Back to Aquila's question by 'Traxtar' (21 Jul 2010 @ 15:49)

A simple TEST for you! by 'itpro' (21 Jul 2010 @ 15:53)

Re: Back to Aquila's question by 'RoadRat' (21 Jul 2010 @ 16:00)

Re: Back to Aquila's question by 'RoadRat' (21 Jul 2010 @ 16:18)

Re: Back to Aquila's question by 'itpro' (21 Jul 2010 @ 16:35)

Re: Back to Aquila's question by 'RoadRat' (21 Jul 2010 @ 16:54)

Re: Back to Aquila's question by 'AlfieMoon' (21 Jul 2010 @ 17:05)

Re: Back to Aquila's question by 'itpro' (21 Jul 2010 @ 19:27)

Re: Back to Aquila's question by 'BanzaiBoy' (21 Jul 2010 @ 20:56)

Re: Back to Aquila's question by 'Traxtar' (21 Jul 2010 @ 22:30)

Re: Back to Aquila's question.... Hmmmmmm.... by 'itpro' (22 Jul 2010 @ 10:43)

Re: Back to Aquila's question by 'RoadRat' (21 Jul 2010 @ 23:37)

Re: Back to Aquila's question by 'itpro' (22 Jul 2010 @ 10:49)

Re: Back to Aquila's question by 'KenE' (21 Jul 2010 @ 22:22)

Re: Back to Aquila's question by 'Traxtar' (21 Jul 2010 @ 22:27)

Re: Back to Aquila's question by 'BanzaiBoy' (21 Jul 2010 @ 22:40)

Re: Back to Aquila's question by 'davidmc' (21 Jul 2010 @ 23:46)

David by 'itpro' (22 Jul 2010 @ 10:56)

Re: Back to Aquila's question by 'AlfieMoon' (22 Jul 2010 @ 17:28)

Erm....... Alfie..... by 'itpro' (22 Jul 2010 @ 19:18)

Re: Back to Aquila's question by 'DavyBoy' (21 Jul 2010 @ 16:19)

Re: Back to Aquila's question by 'RoadRat' (21 Jul 2010 @ 16:45)

HAHAHA this is funny by 'BanzaiBoy' (21 Jul 2010 @ 18:55)

Re: Back to Aquila's question by 'PaulGarnerTKM' (22 Jul 2010 @ 10:08)

Well, your first paragraph........ by 'Newshound' (22 Jul 2010 @ 10:20)

Re: Well, your first paragraph........ by 'RoadRat' (22 Jul 2010 @ 10:42)

Re: Back to Aquila's question by 'DavyBoy' (22 Jul 2010 @ 10:39)

Re: Back to Aquila's question by 'chriskasch' (22 Jul 2010 @ 10:56)

Re: Back to Aquila's question by 'RoadRat' (22 Jul 2010 @ 10:57)

Davy.... and that shows ANOTHER point! by 'itpro' (22 Jul 2010 @ 11:04)

Re: Davy.... and that shows ANOTHER point! by 'BanzaiBoy' (22 Jul 2010 @ 12:36)

Re: Davy.... and that shows ANOTHER point! by 'chriskasch' (22 Jul 2010 @ 13:02)

Re: Davy.... and that shows ANOTHER point! by 'davidmc' (22 Jul 2010 @ 13:23)

Chris by 'itpro' (22 Jul 2010 @ 13:31)

http://www.bergfeltracing.com/bumpers.html by 'AlfieMoon' (22 Jul 2010 @ 14:39)

Oh.,Alfie.... you DO make me laugh! by 'itpro' (22 Jul 2010 @ 14:52)

Re: Oh.,Alfie.... you DO make me laugh! by 'Newshound' (22 Jul 2010 @ 14:57)

Newshound..... how DARE you scoff..... by 'itpro' (22 Jul 2010 @ 15:06)

http://tom-yehya-racing.co.uk/CRGKartTuningManual. by 'AlfieMoon' (22 Jul 2010 @ 15:40)

http://www.craigsminis.com/cmnew/ebooks/GKBasicCha by 'AlfieMoon' (22 Jul 2010 @ 15:42)

http://www.racemates.nl/PKinfoTech_kart%20chassis% by 'AlfieMoon' (22 Jul 2010 @ 15:50)

Re: http://tom-yehya-racing.co.uk/CRGKartTuningMan by 'RoadRat' (22 Jul 2010 @ 15:54)

Believe what you like but why inflict it on all? by 'AlfieMoon' (22 Jul 2010 @ 16:14)

Re: Believe what you like but why inflict it on al by 'Traxtar' (22 Jul 2010 @ 16:34)

Re: Believe what you like but why inflict it on al by 'BanzaiBoy' (22 Jul 2010 @ 16:48)

Re: Believe what you like but why inflict it on al by 'Newshound' (22 Jul 2010 @ 17:05)

Re: Believe what you like but why inflict it on al by 'sawf' (22 Jul 2010 @ 19:47)

Roadrat............... by 'Newshound' (22 Jul 2010 @ 16:30)

poulet jambon...... by 'BanzaiBoy' (22 Jul 2010 @ 16:37)

Re: poulet jambon...... by 'itpro' (22 Jul 2010 @ 19:26)

I'll say this only once...... by 'itpro' (22 Jul 2010 @ 19:03)

Re: Loosening pods/bumpers by 'Liam' (22 Jul 2010 @ 9:36)

Re: Loosening pods/bumpers by 'davidmc' (22 Jul 2010 @ 11:09)

Re: Loosening pods/bumpers by 'Liam' << You are here!

Re: Loosening pods/bumpers by 'itpro' (22 Jul 2010 @ 11:10)

Can.....Worms....OPEN! by 'Aquila' (22 Jul 2010 @ 20:02)

Let's move on to Global Warming now... by 'DavyBoy' (22 Jul 2010 @ 21:44)

Re: Let's move on to Global Warming now... by 'RoadRat' (23 Jul 2010 @ 12:45)

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