Motion and Vibration of a Roller Coaster Consisting of Multi-Vehicles Modeled by TwoWheels on 3D Trajectory
A motion and vibration of a roller coaster consisted of multi-vehicles, which moves on a complicated threedimensional trajectory, is investigated in consideration of air resistance.A roller coaster is treated with here as a concrete example of moving body.By using differential algebraic equations (DAE), the simulation method for moving bodies on 3D trajectory is proposed in this paper.In the previous papers, the simulation method using s-u-z coordinate for a single vehicle has been shown, and a roller coaster has been modeled as a one-wheel vehicle.In this paper, it is modeled as a two-wheel vehicle.In addition, the simulation method for multi-vehicles of a roller coaster is proposed.In order to solve the instability of the simulation analysis, the stabilization method proposed by Baumgarte is adopted.When all of connecting points are taken into consideration as constraint conditions, it is found to be too severe, and some play is necessary at connecting points for practical applications to an actual roller coaster.Lastly, the validity of the proposed simulation method by comparing with the experiment and the simulation results using the one-wheel vehicle reported in the previous paper is examined.
Katsuhisa Fujita Hiroaki Toshimitsu
Mechanical & Physical EngineeringGraduate School of EngineeringOsaka City UniversitySugimoto,Sumiyos Department of Mechanical Engineering Osaka City University Sugimoto,Sumiyoshi-ku,Osaka,558-8585,Japa
国际会议
上海
英文
1-8
2012-08-26（万方平台首次上网日期，不代表论文的发表时间）