期刊
JOURNAL OF TERRAMECHANICS
卷 38, 期 2, 页码 63-70出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0022-4898(00)00010-0
关键词
mean maximum pressure; trafficability
A review is given of the use of mean maximum pressure (MMP) in specifying off-road performance of vehicles. The need to quote a single mobility criterion which is unbiased in favour of either wheeled or tracked vehicles is recognised. The difficulties which researchers have encountered in developing expressions for MMP for both wheeled and tracked vehicles which correctly describe their relative performance are highlighted. Predictions of MMP for wheeled vehicles are compared with ground pressure measurements for a number of vehicles and it is shown that the MMP parameter does not actually represent the ground pressure accurately. Finally it is argued that the only safe route for the specifier is to quote a range of sail types, conditions and gradients on which the vehicle is to operate. This shifts the responsibility to the designer but also clears the way for innovative design, beyond the constraints of the MMP formulae. (C) 2001 ISTVS. All rights reserved.
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