Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (9): 1311-1314.DOI: 10.12068/j.issn.1005-3026.2014.09.022

• Mechanical Engineering • Previous Articles     Next Articles

Drag Torque Analysis of Friction Plates with Different Grooves for Tracked Vehicles

WANG Yanzhong1, WEI Bin1, NING Keyan2, HAN Ming2   

  1. 1 School of Mechanical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China; 2 National Key Laboratory of Vehicular Transmission, China North Vehicle Research Institute, Beijing 100072, China.
  • Received:2013-07-15 Revised:2013-07-15 Online:2014-09-15 Published:2014-04-11
  • Contact: WEI Bin
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Abstract: In order to simulate the viscous drag losses for tracked vehicles, the drag torques of the friction pairs with three common grooves, radial slot, double circular groove and spiral groove, were analyzed using theory and experiment methods. The applicable situations and torque characteristics with the friction pairs of different grooves were simulated using the drag theory and CFD models. The effect of gap and rotating speed on the drag torque of the friction pair was analyzed. The result shows that the torque characteristics of friction plates with spiral grooves are strongly correlated with the directions of rotation and thus the friction pair of spiral groove has advantage in decreasing viscous losses when heat dissipation is not considered.

Key words: tracked vehicle, viscous drag torque, Cubased sintered materials, spiral grooves, rotation direction

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