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Modelbased Investigations of Gyroscopic Effect on the (Elasto‐)Kinematics of Suspension Systems
Author(s) -
Kohl Sergej,
Zuber Armin,
Sextro Walter
Publication year - 2013
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201310007
Subject(s) - bumping , gimbal , kinematics , gyroscope , suspension (topology) , axle , automotive engineering , angular velocity , angular momentum , torque , control theory (sociology) , engineering , structural engineering , computer science , mechanical engineering , physics , classical mechanics , aerospace engineering , mathematics , control (management) , artificial intelligence , homotopy , pure mathematics , thermodynamics
During wheel bumping caused by stochastic road excitation, the wheel performs rotational and translational movements. The bump and rebound wheel velocity leads to significant angular velocities based on the (elasto‐)kinematics of the suspension system. Based on the gyroscopic effect, moments arise about the rotating wheel induced by the angular change while bumping. Therefore it leads to undesirable wheel changes and degrades the tire contact and finally decreases the driving stability. A flexible MBS‐model of the five‐link rear axle system that includes these effects has been built up to allow a detailed investigation of the gyroscopic effect. Using the simulation results, conclusions can be drawn for refining design criteria for the kinematics, elastokinematics and topology of the suspension system to increase the active safety of the vehicle. (© 2013 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)