Hans B. Pacejka

Prof. Dr. Dr. Ir. Hans Bastiaan Pacejka is a well known expert in vehicle system dynamics and particularly in tire dynamics, fields in which his influential works are now standard references. He is Professor emeritus at Delft University of Technology and Consultant TNO Automotive in Delft, Netherlands.

The Pacejka "Magic Formula" tire models

Pacejka has developed a series of tire models, over the last 20 years. They were named the 'magic formula' because there is no particular physical basis for the structure of the equations he has chosen, but they fit a wide variety of tire constructions and operating conditions. Basically each tire is characterised by 10-20 coefficients for each important force that it can produce, typically lateral and longitudinal force, and self aligning torque, as a best fit between experimental data and the model. These coefficients are then used to generate equations showing how much force is generated for a given vertical load on the tire, camber angle and slip angle [http://phors.locost7.info/phors21.htm] . The Pacejka tire models are widely used in professional vehicle dynamics simulations, and racing car games, as they are reasonably accurate, easy to program, and solve quickly.

ee also

*Tire, Contact patch
*Important publications in vehicle dynamics
*Bicycle and motorcycle dynamics

Bibliography

*Pacejka, H. B., " [http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=N7325515AH&q=%22The+wheel+shimmy+phenomenom%22&uid=789853885&setcookie=yes The wheel shimmy phenomenom: A theoretical and experimental investigation with particular reference to the nonlinear problem (Analysis of shimmy in pneumatic tires due to lateral flexibility for stationary and nonstationary conditions)] ", Ph.D. Thesis, Delft University of Technology, Delft, 1966.
*Bakker, E. ; Nyborg, L. ; Hans B. Pacejka " [http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=6514971 Tire modelling for use in vehicle dynamics studies] " 1987 Jan. Society of Automotive Engineers,Warrendale, PA.
*PWA Zegelaar, HB Pacejka " [http://www.ocp.tudelft.nl/tt/vehicle/PAPERS/Zegiavsd95.pdf The in-plane dynamics of tires on uneven roads] " Vehicle System Dynamics, 1996 - ocp.tudelft.nl
*Pacejka, H. B. " [http://elsevier.net/wps/find/bookdescription.cws_home/707436/description#toc Tire and Vehicle Dynamics] ", Butterworth-Heinemann, Oxford, 2002.

References

External links

* [http://elsevier.net/wps/find/bookreview.cws_home/707436/review Review] of " Tyre and Vehicle Dynamics"
* [http://www.racer.nl/reference/pacejka.htm Pacejka's Magic Formula]
* [http://scholar.google.com/scholar?as_q=&num=10&btnG=Ricerca+Google+Scholar&as_epq=&as_oq=&as_eq=&as_occt=any&as_sauthors=%22Hans+Pacejka%22&as_publication=&as_ylo=&as_yhi=&hl=en&lr=&safe=active Pacejka's works]