Research on the Trajectory Simulation and Design Method of Gravity Potential Energy Vehicle for Clocking in on the"Long March"Route
According to the requirements of the 8th National University Students'engineering training comprehensive ability competition,a gravity potential energy vehicle is designed and producted which converts gravity energy into mechanical energy and can clock in the Long March route.NX12.0 is used to design the running track of the trolley.In order to ensure the repeatability of the walking track and the accuracy of clocking in,this paper innovatively uses the Bezier curve of NX12.0 to draw the fitting curve of the Long March route track.MATLAB is used to optimize and simulate the fitting curve,so as to obtain the theoretical cam profile meeting the design requirements.In order to ensure the rationality of the structural design of the vehicle and the accuracy of the running track,SolidWorks is used to design and analyze the overall structure of the thermoelectric vehicle,motion simulation is carried out on the car,and finally the prototype is completed and debugged.A three-dimensional scanner is used to conduct three-dimensional reverse modeling of the cam after debugging and correction.Finally,the actual CAM profile that meets the design requirements is obtained.The car equipped with the reverse modeling cam is debugged.The running results show that the car can clock in all track points and the track repeatability is good without debugging and correcting the 3D reverse modeling cam.The method of trajectory simulation and structural design provided in this paper is correct,reliable and widely applicable.It is of great significance to this type of engineering competition and the design and development of other mechanisms.
gravity potential energy driven vehicletrajectory simulationcam designlong march routereverse modeling
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