Th 亘 s papeτ presents a theoretical study on the directjonal stabi ! ity of m し11ti − articulated vehicles with multiple axles , The vehicle dynamics model is derived in the horizontal plane having degrees of freedom of vehicle side slipping and yawing 、 For an equal vertical load of each axle as wel 正as asimilar corner 量 ng c 〔 〕ef五cient of each tire in each of the multiple axles , the equatiQns of motion can be reduced to ones with a singular axle and additlonal terms that are functions of

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... numbers of ax 艮 es and the distances betweerl theln . Two types of tractor and double . ・ trailer combinations with multiple axles are ex 烈 mined with regar (1 to straight runnillg stability us well as stecring sellsi し ivity insteady − state turning , Non − oscillatory stabi ! ity incDrporating steeringsensitivity is analyzed using the stabjlity factor of multiple − axle vehicle combinatlons . A parameter study of oscillatory stabillty and steerin 暮 sensitivity is conducted , an ( 1 the fQRowing conclusions are drawn .(/)The terms on