Agile tire slippage dynamics for radical enhancement of vehicle mobility |
| |
| Institution: | 1. US Army TARDEC, Ground Vehicle Robotics, Warren, MI 48397, USA;2. Department of Mechanical Engineering, The University of Alabama at Birmingham, Birmingham, AL 35294, USA;1. Biological Sciences Graduate Program - College of Computer, Mathematical and Natural Sciences, University of Maryland, 4066 Campus Drive, College Park, MD 20742, United States;2. Institute of Bioscience and Biotechnology Research, University of Maryland, College Park, 5115 Plant Science and Landscape Architecture Building, College Park, MD 20742, United States;3. Fischell Department of Bioengineering, University of Maryland, Room 3122, Jeong H. Kim Engineering Building (Bldg. #225), College Park, MD 20742, United States;1. Vehicle Systems Development Corporation, Toronto, Ontario, Canada;2. U.S. Army Tank Automotive Research, Development and Engineering Center, Warren, MI, USA;3. National Research Council of Canada, Ottawa, Ontario, Canada;1. U.S. Army Tank Automotive Research Development and Engineering Center, Warren, MI 48397-5000, USA;2. Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706-1572, USA |
| |
| Abstract: | There is a need to radically increase mobility of terrain vehicles through new modalities of vehicle locomotion, i.e., by establishing a new technological paradigm in vehicle dynamics and mobility. The new paradigm greatly applies to military vehicles for the radical improvement of tactical and operational mobility. This article presents a new technological paradigm of agile tire slippage dynamics that is studied as an extremely fast and exact response of the tire–soil couple to (i) the tire dynamic loading, (ii) transient changes of gripping and rolling resistance conditions on uniform stochastic terrains and (iii) rapid transient changes from one uniform terrain to a different uniform terrain. Tire longitudinal relaxation lengths are analyzed to characterize the longitudinal relaxation time constants. A set of agile characteristics is also considered to analyze agile tire slippage dynamics within a time interval that is close to the tire longitudinal relaxation time constants. The presented paradigm of agile tire slippage dynamics lays out a foundation to radically enhance vehicle terrain mobility by controlling the tire slippage in its transient phases to prevent the immobilization of a vehicle. Control development basis and requirements for implementing an agile tire slippage control are also analyzed and considered. |
| |
| Keywords: | Terrain mobility Agile tire dynamics Agility Mobility enhancement Tire slippage Tire longitudinal relaxation length Tire relaxation time constant |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
