Abstract:
This study is mainly focused on to determine a suitable structure for the pedal car by considering following areas.
1.To determine the number of wheels for the pedal car/
2.Driven drive (whether front or rear)
3.Number of wheels for steering "Tadpole car" is the final designed of the research because it is comparatively easy to fabricate and, there are so many advantages when fixing power transmission and steering mechanisms./
Here the steering mechanism couples with front wheels of the "tadpole" structure. It governs by standard bicycle handle. End of the handle, by using two steel rods, couples with pin joint to the front wheels.
Suspensions arc necessary to maintain comfort-ability of the car. Therefore front wheels are assembled with two springs. And Rear wheel later part was assembled with pin joint and upper joint introduced with coil spring. This combination helps to maintain Constancy distance between flywheel and the rear wheel./
Brake must be with the vehicle to safe operation of it. Here all three wheels are controlled at the same time by jamming one liver. It is important for the stability of the vehicle while stopping.
Steel Conduits are used for the fabrication of first embodiment. But after Cosmos analysis, it reveals that maximum stress occurred on the structure is 27 N/mm2. For Cosmos analysis, numbers of possible load combinations were applied on seat and paddles. Seat load considered as distributed load and pedal load took as point load/
Further this research can turn to another area of "law weight structures". Herein maximum efficiency can be achieved by reducing the body weight of the car. And it will help to popularize the car. Because generally riders like easy- handling vehicles. This goal would be achieved by replacing steel parts with Aluminum alloy or Timber/Structures wherever possible.
Citation:
Molligoda, M.L.C.Y. (2006). The Analysis of suitable frame (structure) for a pedal car [Master's theses, University of Moratuwa]. Institutional Repository University of Moratuwa. http://dl.lib.mrt.ac.lk/theses/handle/123/516