外文翻譯---多軸車(chē)輛的轉(zhuǎn)向特性(已修改)
2025-06-01 10:02 本頁(yè)面
【正文】 1 Turning characteristics of multiaxle vehicles Abstract： This paper presents a mathematical model for multiaxle vehicles operating on level ground. Considering possible factors related to turning motion such as vehicle configuration and tire slip velocities, equations of motion were constructed to predict steer ability and driving decency of such vehicles. Turning radius, slip angle at the mass center, and each wheel velocity were obtained by numerically solving the equations with steering angles and average wheel velocity as numerical inputs. To elucidate the turning characteristics faultyaxle vehicles, the eject of fundamental parameters such as vehicle speed, steering angles and type of driving system were examined for a sample of multiaxle vehicles. Additionally, field tests using fullscale vehicles were carried out to evaluate the basic turning charataractics on level ground. Keywords: Multiaxle vehicles。 Turning maneuverability。 Mathematical model 1. Introduction Track laying running gear has been mainly used in the fields of military and construction for heavy vehicle applications. Recently, running gear with pneumatic tires has been expanding to heavy vehicles in such fields, since tire equipped vehicles excel in speed, silence and energy e?cogency. Several papers have been published on the subject of tractability and maneuverability of multiaxle vehicles [1,2]. A theoretical study to evaluate the turning motion of skid steering vehicles was also developed by Renoir and Cravat [3]. More recent army vehicles, such as the MODIX, are designed to be equipped with independent wheel drive and steering, and load control suspensions [4]. The MODIX can turn by normal steering, skid steering, or a mixture of both. Additionally, the conversion from mechanical drive to an electric drive unit controlled by each inhub motor has been examined [5–7]. A hybrid wheel steer system is being developed to plement the independent drive capability of the inhub wheel motors. However, there has not been a paper or technical publication dealing with the subject prehensively and in a logical sequence because the phenomenon of dynamic motions of the multiaxle vehicle is plex. This paper describes a puter simulation model to predict turning characteristics of multiaxle vehicles. The equations of motion for the vehicles are constructed for level ground. Tractate and side forces acting under pneumatic tires due to interaction with the ground are of fundamental importance to predict the motion of vehicles. In the numerical simulation, the brush 2 model based on a physical approach
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