走行抵抗を考慮した3次元軌道上のローラーコースターの運動と振動(機械力学,計測,自動制御)

概要

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The motion and vibration of a moving body running on a complicated 3 dimensional (3D) trajectory considering resistance to forward motion are investigated in this paper. A roller coaster is treated with here as a concrete example of moving body. The equations of motion of a roller coaster in which a trajectory and a vehicle are coupled are derived by using differential-algebraic equation (DAE). By using these equations, a time history simulation analysis is performed. The dynamic behavior of a roller coaster which moves forward due to the gravity is investigated. The effect of an air resistance and a rolling resistance are taken into consideration in this analysis. Also, the motion and vibration experiments have been performed using an actual roller coaster in site. The acceleration responses in simulation are compared to those in experiment. Both show a good coincidence qualitatively. Moreover, influences of running resistances on the required time from the starting point to the arriving one are made clear.
2010-08-25