ANALISIS PARAMETER KOEFISIEN TAHANAN GULIR ALAT ANGKUT PADA JALAN ANGKUT TAMBANG DENGAN MATERIAL LEMPUNG PASIRAN DENGAN SIMULASI LABORATORIUM DAN PENGUKURAN DI LAPANGAN

• Main Author: Nainggolan, Batara
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/81795
• Institution: Institut Teknologi Bandung

Production rate in mine process is affected by work performance of haul trucks and excavators. Haul trucks interaction with ground will cause forces needed to drive the vehicle. The definition of rolling resistance is external forces that resist the vehicle to move. Coefficient of Rolling Resistance (CRR) is total rolling resistance divided by normal weight of the vehicle. This research’s purpose is to point the rolling resistance and Coefficient of Rolling Resistance on silty sandstone, and analyze its effect to it. CRR number is measured by a simulation of a single lori that pulled by wire rope that operated by a winch machine with 13 m track whereas the field data acquisition will be adjusted to the laboratory. Variables that measured in this research are total vehicle weight (loaded), tire pressure, pulling velocity, and tire deflection in a static condition. It is shown that the increase of payload weight, pulling velocity, and grade of the track can increase the number of CRR. But the increase of tire pressure will reduce the number of CRR. Dimensional analysis is conducted to determine the empirical relation between the number of CRR and those variables.