nanosleep
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| posted on 29/7/05 at 03:46 PM |
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Idea for progressive rate spring (aka, will this work or am I a looney)
Hello to all. I've just recently joined the forum.
I've had this idea rumbling though my head for a while. I'll put it out and see what everyone thinks.
The idea is a modification to the pushrod and inboard spring/shock suspension setup.
I have some diagrams and a quick and dirty write up of the idea on http://nanosleep.dyndns.org/shock
The benefits are (or at least I think it'll work):
1) progressive rate spring using a simple spring
2) ability to adjust the effective spring rate (you don't need to buy a hard spring for the track and a soft spring for daily driving)
3) easy construction (same diffculty as the typicaly setup)
If the link above is confusing or needs more info, let me know. I didn't invest much time in the web design department.
-Andy
2000 Mustang GT
2003 Mustang Cobra 450RWHP/450RWTQ
2004 ZX-10R
In progress: 67 Mustang with 520ci(8.6L) V8, 600HP estimated
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chrisf
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| posted on 29/7/05 at 06:56 PM |
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I went through all this as well. I'm in DFW too. U2U me to stop by and see the project and discuss this stuff.
--Chris
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phelpsa
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| posted on 29/7/05 at 10:48 PM |
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You're a looney, but it might work aswell
I work under the idea that if something obvious hasn't been done yet, theres probably an obvious reason why it hasnt been done that I'm
missing. Have you seen anything else using this method. I'm not saying it won't work, as I dont understand suspension at all (which is why
im reading Racing Car Suspension by Alan Staniforth).
Adam
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britishtrident
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| posted on 30/7/05 at 09:11 AM |
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All been done before
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MikeRJ
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| posted on 30/7/05 at 02:14 PM |
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Yep, been done before (as has virtualy everything automotive related!). Linkages simmilar to this are used on the rear mono-shock systems on bikes
to give a rising rate system.
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erbieb02
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| posted on 2/8/05 at 01:18 PM |
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We used a similar though not 90 degree bell crank setup when building our Fourmula SAE car. Go to
http://www.louisville.edu/speed/rso/sae/fsae/index3.html for a shot of what we did. It gave reasonably good results though the dampening from all of
the pivots made it a bit sketcy on rough ground.
The push/pull rod suspension design is a proven race winner, don't you just hate it when you come up with a great idea and somebody has already
done it.
Eric B
Eric B
So many choices, way to much time (until I can afford to build).
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Bob C
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| posted on 2/8/05 at 10:00 PM |
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I agree bell cranks for push/pull rod suspension is well established but this man's idea is slightly different, being effectively a bellcrank
with 2 holes in it instead of 3! So it's made from a bar instead of a plate (easier construction) and should be particularly handy when the
shock is at less than 90degrees from the push/pull rod. So good plan mr. nanosleep, one to keep in the inventory of daft systems at the back of the
skull just in case........
cheers
Bob C
PS keep 'em coming!
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erbieb02
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| posted on 3/8/05 at 07:58 AM |
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I see, I didn't look at the document far enough. I think it is a perfectly servicable idea, probably not widely used due to packaging
issues.
I like it.
Eric B
Eric B
So many choices, way to much time (until I can afford to build).
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Syd Bridge
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| posted on 3/8/05 at 08:27 AM |
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Locosts are 'rising rate' as they are. Just not a lot of movement so not a lot of rise!
Why overcomplicate something as simplistic as a 7? Just because you can I s'pose. But completely unnecessary, even with all those cheap
v8's available.
[Edited on 3/8/05 by Syd Bridge]
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