Suspension Theory

Hi, Does anyone know any resource on the NET that explains the physics behind suspenion dynamics? Or perhaps a good book still in print? Regards, John

> Does anyone know any resource on the NET that explains the physics > behind suspenion dynamics? Or perhaps a good book still in print? Dunno about on the net, but how 'bout: Bastow, Donald, and G. Howard, _Car Suspension and Handling, Third Edition_, Pentech Press Ltd, London, 1993. Campbell, Colin, _New Directions in Suspension Design - Making the Fast Car Faster_, Robert Bentley Inc., Cambridge MA, 1981. Milliken, William F. and Douglas L., _Race Car Vehicle Dynamics_, SAE Publications, Warrendale, PA, 1995. Smith, Carroll, _Tune to Win_, Aero Publishers Inc., Fallbrook, CA, 1978. Randy

Performance Handling How to Make Your Car Handle Techniques For The 1990s by Don Alexander from Motorbooks International Copyright 1991 You might also see if you can get the last 4 issues of SportsCar which is published by the SCCA. They each had an article in them that explained setting up a car's suspension. The last article was the best (September 1996) as it explained how to correct different instances of understeer and oversteer....ie. corner entry, steady state corner, and corner exit.

writes: Try "Inside Racing Technology" by Paul Haney & Jeff Braun. You should find it at your local bookstore in the automotive section. It helped me figure out a few things about making cars handle better.

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>Hi, >Does anyone know any resource on the NET that explains the physics >behind suspenion dynamics? Or perhaps a good book still in print? >Regards, >John

Check out the Late Night website. There's a couple of book reviews as well as a link to a site called "The Physics of Racing" that will get you started. Dave (davids) Sparks Late Night League http://www.sequoia-dev.com/Hawaii/latenite.html

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> > Does anyone know any resource on the NET that explains the physics > > behind suspenion dynamics? Or perhaps a good book still in print? > Dunno about on the net, but how 'bout: > Bastow, Donald, and G. Howard, _Car Suspension and Handling, > Third Edition_, Pentech Press Ltd, London, 1993. > Campbell, Colin, _New Directions in Suspension Design - Making the > Fast Car Faster_, Robert Bentley Inc., Cambridge MA, 1981. > Milliken, William F. and Douglas L., _Race Car Vehicle Dynamics_, > SAE Publications, Warrendale, PA, 1995. > Smith, Carroll, _Tune to Win_, Aero Publishers Inc., Fallbrook, CA, > 1978. > Randy

Check out http://reality.sgi.com/employees/rck/PhOR/index.htm "Physics Of Racing", it's an overly informative series that illustrates how all systems on a race car affect (effect?) the whole. Happy Lappin' Wade Tschida W_Cheeta (Hawaii)

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> > > Does anyone know any resource on the NET that explains the physics > > > behind suspenion dynamics? Or perhaps a good book still in print? > > Dunno about on the net, but how 'bout: > > Bastow, Donald, and G. Howard, _Car Suspension and Handling, > > Third Edition_, Pentech Press Ltd, London, 1993. > > Campbell, Colin, _New Directions in Suspension Design - Making the > > Fast Car Faster_, Robert Bentley Inc., Cambridge MA, 1981. > > Milliken, William F. and Douglas L., _Race Car Vehicle Dynamics_, > > SAE Publications, Warrendale, PA, 1995. > > Smith, Carroll, _Tune to Win_, Aero Publishers Inc., Fallbrook, CA, > > 1978. > > Randy > Check out http://reality.sgi.com/employees/rck/PhOR/index.htm > "Physics Of Racing", it's an overly informative series that illustrates how all > systems on a race car affect (effect?) the whole. > Happy Lappin' > Wade Tschida > W_Cheeta (Hawaii)

Hi, I went to Barnes & Noble and found none of the above books. I'll look elsewhere. The reason I ask about suspension theory is: while all the physics of racing sites make sense they don't neatly point out what to do with a ICR2 or NASCAR setup. I've found two list for the sim setups. Unfortunately one explains why to do something www.sequoia-dev.com/Hawaii/Features/setupguide.html and the other just says "if this then that" whith out any reasoning. userwww.servuce.emory.edu/~ebusch/quickfix.html The later seems to be more accurate. As usual you may find it on the net, but you never really know if it's correct. Regards, John

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>> > > Does anyone know any resource on the NET that explains the physics >> > > behind suspenion dynamics? Or perhaps a good book still in print? >> > Dunno about on the net, but how 'bout: >> > Bastow, Donald, and G. Howard, _Car Suspension and Handling, >> > Third Edition_, Pentech Press Ltd, London, 1993. >> > Campbell, Colin, _New Directions in Suspension Design - Making the >> > Fast Car Faster_, Robert Bentley Inc., Cambridge MA, 1981. >> > Milliken, William F. and Douglas L., _Race Car Vehicle Dynamics_, >> > SAE Publications, Warrendale, PA, 1995. >> > Smith, Carroll, _Tune to Win_, Aero Publishers Inc., Fallbrook, CA, >> > 1978. >> > Randy >> Check out http://reality.sgi.com/employees/rck/PhOR/index.htm >> "Physics Of Racing", it's an overly informative series that illustrates

how all

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>> systems on a race car affect (effect?) the whole. >> Happy Lappin' >> Wade Tschida >> W_Cheeta (Hawaii) >Hi, >I went to Barnes & Noble and found none of the above books. I'll look >elsewhere. >The reason I ask about suspension theory is: while all the physics of >racing sites make sense they don't neatly point out what to do with a >ICR2 or NASCAR setup. I've found two list for the sim setups. >Unfortunately one explains why to do something > www.sequoia-dev.com/Hawaii/Features/setupguide.html >and the other just says "if this then that" whith out any reasoning. > userwww.servuce.emory.edu/~ebusch/quickfix.html >The later seems to be more accurate. As usual you may find it on the >net, but you never really know if it's correct. >Regards, >John

One of the problems with trying to extrapolate from a racing physics text is that the Papyrus simulations are not entirely accurate with regard to all the aspects that affect suspension and tire performance. For example, every book on racing theory will tell you that increasing the load on a tire will increase the lateral and longitudinal force generated by that tire. The Papyrus sim models this backwards, i.e. decreasing the load on a tire increases the force. Dave (davids) Sparks Late Night League http://www.sequoia-dev.com/Hawaii/latenite.html