This paper deals with collision with friction. Equations governing a one-point collision of planar, simple non-holonomic systems are generated. Expressions for the normal and tangential impulses, the normal and tangential velocities of separation of the colliding points, and the change of the system mechanical energy, are written for three types of collision in connection with Newton’s hypothesis, and for five types of collision in connection with Poisson’s and Stronge’s hypotheses. These, together with Routh’s semi-graphical method and Coulomb’s coefficient of friction, are used to show that the algebraic signs of five, newly-defined, configuration-related parameters, not all independent, span eleven cases of system configuration. For each, the ratio between the tangential and normal components of the velocity of approach, called α, determine the type of collision which, once found, allows the evaluation of the associated normal and tangential impulses and ultimately the changes in the motion variables. The analysis of the eleven cases with Newton’s hypothesis indicates that the calculated mechanical energy may increase if sticking or reverse sliding occur, and that regions of α exist for which there is no solution or there are multiple solutions. Regarding Poisson’s hypothesis, there are regions of α, narrower than with Newton’s hypothesis, for which there is no solution. However, whenever a solution exists it is unique, coherent and energy-consistent. The same applies to Stronge’s hypothesis, however for a narrower range of application. It is thus concluded that Poisson’s hypothesis is superior as compared with Newton’s and Stronge’s hypotheses.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
ISBN:
978-0-7918-4836-4
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On the Applicability of Newton’s, Poisson’s and Stronge’s Collision Hypotheses Available to Purchase
Shlomo Djerassi
Shlomo Djerassi
Rafael, Haifa, Israel
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Shlomo Djerassi
Rafael, Haifa, Israel
Paper No:
ESDA2008-59161, pp. 531-542; 12 pages
Published Online:
July 6, 2009
Citation
Djerassi, S. "On the Applicability of Newton’s, Poisson’s and Stronge’s Collision Hypotheses." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Automotive Systems; Bioengineering and Biomedical Technology; Computational Mechanics; Controls; Dynamical Systems. Haifa, Israel. July 7–9, 2008. pp. 531-542. ASME. https://doi.org/10.1115/ESDA2008-59161
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