Dynamic Modeling And Simulation On Roller Coasters

Roller coasters are popular among masses of tourists and have become necessary largesliding class amusement equipment in places of recreation such as amusement park and themepark. Because of that, more and more companies are participating in designing and making ofamusement equipment, striving to produce higher entertaining and safer roller coasters.Compared with foreign countries, the starting of domestic design and making of amusementequipment was too late, especially in design of damping system and track which is at arelatively low level. This has a strong impact on the period of product development andcompetition power in the market and this essay will begin to run according to this problem.To analyze the influence such as wheels’ stiffness and damping, track shape on safety ofroller coasters, this paper has built the three degree of freedom dynamic model includingvertical, pitch, and list after analyzed the motion law of roller coasters, and then solved theequation with MATLAB. In order to verify the validity of the dynamic equation, this paper,taking the production of the motor roller coaster in a domestic company as an example, hassubstituted its dynamic parameter into the dynamic equation and solved it. This equationresults was very close to the dynamic simulation analysis result of motor roller coaster andthus verified the validity of the equation. So this dynamic equation can provide theoreticalbasis for the development and design of roller coasters.Following that, this paper studied the development and design of the4th dimensionalroller coaster which has4tracks. The change of driving tracks and walking tracks spacingcauses360degrees of rotation of cockpits. This paper has built the driving tracks on thepremise of known key points’ coordinate of walking tracks. This method of building trackscan change driving tracks and walking tracks spacing conveniently and effectively.Finally, the virtual prototype model of the4th dimensional roller coaster was constructedby establishing the3th dimensional model of the4th dimensional roller coaster body inSolidWorks, importing it into ADAMS, adding proper restraint and load. Speed, acceleration, constraining anti-forces and other related data curves have been obtained with makingdynamic simulation of the virtual prototype model. The4th dimensional roller coaster is morecomplex amusement equipment and its simulation analysis method has a great ability ofpopularization and can provide reference for design of other roller coasters.