Abstract
Carrying up and down a scraper under transportation of soil on a weak sloped terrain, the application height of the effective driving and braking force of a bulldozer could be controlled to obtain the maximum force and the maximum efficiency of power. Several tractive and braking performances of a 50kN weight rubber tracked bulldozer trailing up and down a given weak sandy sloped terrain have been simulated. As a result, it is clarified that the optimum application height is 60, 60, 20, -40cm for slope angle 0, π/18, π/9, π/6rad in driving state, and 20, 0, 100, 100cm in braking state, respectively. The automated control positioning system of the attachment could be developed by use of an inclinometer.
