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I am curious if there are any books out there that run through suspension systems (specifically their damping). I pretty much assume that this will be an automotive book, but as long as it covers the same ideas, I am all for it. So, do any of you guys have any recomendations?


It's just that I dont always like to wait for a response here, and my eyes hurt from looking at computer screens all day...
 

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I can provide you 2 documents (one from penske and another from ohlins) that are pretty interesting... ( i can't locate them in the 'net )
 

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Tubes6al4v said:
Is there any chance you know the titles or more information so I can look?
in fact they are 2 documents (+- 30 pages) from Penske suspensions and Ohlins ....
 

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A month ago I suggested you check out a university 'engineering library'. Have you looked or are you close to any university? The web is full of stuff, but a lot of the technical articles are available thourgh pay sites (scientific journals).

As mentioned, Ohlins has lots of info, from shock shematics to genreal damping theory (relating to their designs). I have seen the penske stuff as well, but dont remember where. A simple intro to shimmed dampers (specific to moto cross brands, but aplicable to general use) can be found here: http://www.peterverdonedesigns.com/highspeed.htm
Check the links at the left as well...lots of good info relating to mtb forks and oils (viscosities etc)

google search = http://www.theoryinpracticeengineering.com/drift_mag/Damper_tuning.pdf
more: http://www.fsae.uvic.ca/Car/car2005-Damping.htm
http://www.penskeshocks.co.uk/downloads/AdjustableTechManual.pdf

formula sae applications seems to have some good info.
 

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There is quite a bit of good suspension info written about motorcycles, both off road and on. A good bit of it transfers over to bicycles.

The next time you're in a book store, check out the "Sportbike Performance Handbook" by Kevin Cameron
 

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The Verone site is a good place to start. As is the Ohlins. The Penske site and information while good will leave you scratching your head about the various designs of the pistons and valve bodies. We utilize the same basis for moto type stuff. The majority of MTB stuff isn't there yet.

One issue with MTB dampers and forks is the combined rider / vehicle weight being so low, along with small lightweight components. These factors and a narrow speed window, both in MPH and suspension velocity seem to mandate very few shims in the building of the forks or shock, which limits how much change you can make. Few shims means each change is a huge percentage of change.

PK
 
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