Design and Construction of a Two-Wheel Motorized Scooter

Description

– Design and Construction of a Two-Wheel Motorized Scooter –

Download Design and Construction of a Two-Wheel Motorized Scooter. Students who are writing their projects can get this material to aid their research work.

Abstract

This motorized Two-wheel scooter is specifically designed for low speed, and hence is more suitable for short distance commute. It incorporates a mild steel frame which houses the transmission mechanism. This transmission system in its self is a motor- chain-sprocket assembly: a 350w DC motor powered by a 24v,

18A battery generates sufficient torque which is transmitted by a 16 toothed sprocket through a chain comprising of 64 links to a rear sprocket (22 teeth) attached to the rear wheel. On either side of the handle bar is the brake lever (left) and speed controller (right) for ease of navigation.

The stress analysis reviled that the maximum stress induced on the frame due to design load is 49.156N/m². The maximum design load of this scooter is 686.7N, and from the graph analysis the scooter travels at a maximum velocity of 0.51m/s.

The graph also reviled that the velocity of the scooter is inversely proportional to the load. Similarly, the discharge rate of the battery increases as the load is increased. Also, the scooter velocity is directly proportional to the rate of battery discharge.

The continuous working time of the battery is 40min at rated load and normal working condition. This scooter apart from providing a reliable transportation alternative provide reprieve for the severely threatened ozone layer and the environment in general being that it is toxic emission free.

Introduction

1.1 Background of the Study

In recent years, there have been increasing government and public interest in energy issues generally and particularly in electro-mobility. This is so because of the increasing effect of fossil fuels burnt by the automobile on the natural environment as well as on human health.

A research carried out by (Ojolo S.J. et al, 2017) on the effect of vehicles emissions on human health in Nigeria showed significant physical effect of these emissions on vegetation’s, buildings and on structures.

The results from the research on health also showed on the average that 28.3%, 16.6%, 23.3%, 18.3%, 13.3% of the population of people living in the neighborhood (Lagos-Oshodi,Mushin,Apapa and Fola Agara all in Nigeria) under study were affected by sleeplessness, running nose, heavy eyes, asthmatic attack and headache respectively.

To contend this menace, a lot of electro-mobile devices as well as solar powered automobiles have evolved.

In the year 2015, the global threshold of electric cars on the road rose from 1 million to 1.26 million (Electric Vehicle Initiative, 2017) this shows the joint commitment of the government and industries towards securing affordable and clean energy for the human society.

A recent statement by the Chartered Institute of Logistics and Transport revealed that in Nigeria over 7 million vehicles ply the roads daily out of which 99.8% operate on fossil fuels (www.allafrica.com/stories).

It is unfortunate that even short distance transport systems in Nigeria still uses fossil fuel as it source of power which in its little way contributes to the degradation of the environment as well as the health of humans in the surrounding.

The high risk of accidents in congested areas as well as high traffic noise warrant us to begin to consider a simpler, more economical and environment friendly means of transportation which can be adopted for use within short distances e.g. across companies complex, colleges campus, hospitals etc.

There are several versions of scooters ranging from; the pedal scooters, electric scooters, internal combustion engine (motorized) scooters, kick scooters etc.

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