Graduate Project
 

Computer simulation of offtracking of truck and trailer combinations using forest roads

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https://ir.library.oregonstate.edu/concern/graduate_projects/44558k45v

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  • Many of the analytical techniques that are currently available are not capable of analyzing the offtracking of truck and trailer combinations or the path of load overhangs through a set of curves that are commonly found on forest roads. Advances in the processing speed of microcomputers have made it possible to simulate how a truck and trailer combination negotiate a road. A microcomputer program, OFETRACK, was developed to simulate the offiracking of six different vehicle configurations. The program will enable road designers to predict offtracking through a complex set of road geometrics, including compound and reverse curves. The program will also analyze the path of load overhangs on a vehicle such as a yarder tower on a lowboy or rubber tired undercarriage, Test results of the program compare favorably with several field studies and a scale model simulator. Outputs of the computer simulation are in the form of road widths required left and right of centerline, total width, and curve widening, A plot of the paths of the wheels and load overhang can be viewed on the screen or sent to a drum plotter
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