A study of tricycle sidecar stability
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Sidecars are one kind of vehicles which Thai peoples widely use and also be useful in daily life such as a commercial carrying and transport carrying. the purpose of this project is to increase more safety of carrying and utilization by reserching and developing the stability of sidecars. This approach is to use the 3rd phases set of width adjustable (confirm with legality) is composed first series of small phases, second series of midium phases and third series of large phases in order to find each phases of the differences in the stability of sidecars. At the same time, this experimentation occured the Pitch angle, the Yaw Angel, the Resistance in riding and brake and finally the speed of sidecar. Many conclusions are to get the most suitable stability of sidecars. Based on this methodology will be the most suitable stability of sidecars which can develop and design sidecars get more efficiency and capability of carrying later. The result of the stability sidecars testing, in case of no carrying was found that increase of wheeltrack directly effects the Yaw Angel increased and conversely, Sideslip angle reduced. In case of carrying with passengers was found that the increase of mass directly effected on the increasingly resistance of left hand and right hand. In case of commercial carrying, that was similar to the testing carrying with five passengers due to the weight distribution got near to front wheels similarly, was found that the increase of wheels base directly effected on the Sideslip angle increased and conversely the Pitch angle reduced. In case of commercial carrying which reduced the speed while cornering directly effected on the Sideslip angle reduced. For the bend testing by braking with the rear brakes and 1.1 m wheel track caused the Pitch angle, the Yaw Angle and the Sideslip angle was less, was found that was the most suitable stability of sidecars. And conversely, for the bend testing by braking with the front brakes or braking with the front and rear brakes jointly caused the Pitch angle, the Yaw Angle and the Sideslip angle was more, was found that is not insecurity to keep the suitable stability of sidecars.
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