Rail crane often needs to run on the curve track. Traditional design adopts concentric circle method and handdrawing, but this will take time and effort without reasonable result, consequently, a new idea for design has to be implemented from the beginning. The paper modifies the track theory, with the introduction of clothiod spiral and computing program. The modification leads to the realization of parametric design as well as avoiding defect caused by traditional concentric circle theory. Eventually, the reasonability is verified by the Adams simulation.
Clothoid Spiral, Rail Theory, Parametric Design, Adams Simulation
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