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原文传递 VEHICLE DYNAMICS PROGRAMS FOR ROADWAY AND ROADSIDE STUDIES

题名：	VEHICLE DYNAMICS PROGRAMS FOR ROADWAY AND ROADSIDE STUDIES
作者：	Michael W. Sayers
关键词：	Computer simulation, vehicle dynamics, rollover, roadway design, geometry, IHSDM
摘要：	The main objective of this project was to select among existing vehicle dynamics simulation programs and link them through a common database to commercial roadway CAD programs. The existing TruckSim and AutoSim technologies were selected and extended for this project to create a software package called VDM RoAD (Vehicle Dynamic Models Roadway Analysis and Design). VDM RoAD simulates the vehicle dynamics behavior of cars, trucks, and two-unit combination vehicles (tractor-semitrailers) on 3D road designs. The software ’ runs under Windows 95 and Windows NT and shows results graphically with plots and animations. The software can be used by engineers who are not experts in simulation or even vehicle dynamics. The new software was developed with the intention of adding it to an interactive highway safety design model (IHSDM) that systematically considers safety of roadway and roadside design elements in creating cost-effective highway design alternatives. Although VDM RoAD is designed to work with other parts of the IHSDM, further integration is not recommended because most factors of performance that are of interest to roadway designers do not require vehicle dynamics simulation. Vehicle-related performance measures are largely defined by lateral acceleration, which depends only on the kinematics that link roadway geometry and travel speed.
报告类型：	科技报告