Effi-cycle SAENIS 2012
GOVERNMENT COLLEGE OF TECHNOLOGY
COIMBATORE, TAMIL NADU
Efficycle 2012 is a national level technical event, whose objective is to bring out the creative and innovative ideas of Engineering students. It aims out at creating a vehicle which is economical and eco-friendly. It also provides us a platform where we are applying the basic engineering skills we had learned. Our task is to design and build a three wheeled vehicle, powered by human and electrical means. The design should be commercially viable as a product and should be attractive to the consumers. It can be driven either alternatively or simultaneously by both mechanical and electrical means. This report details the considerations and processes behind our all-terrain vehicle.
EFFI-CYCLE 2012 is an intercollegiate design competition for undergraduate students which are aimed at designing and fabricating an energy efficient hybrid human powered three‐ wheeled electric vehicle. It provides us an opportunity by setting up a trend of using eco‐friendly vehicles in India and come up with some innovative designs. We, GREEN RHINOS, consists of 8 undergraduate 3rd year students from Mechanical and Production department of Government College of Technology, Tamil Nadu. The team was keen on utilizing the platform to learn, innovate and implement. The following paper outlines the design and analysis of the Efficycle 2012 - Green Rhinos three wheeled vehicle.
The designing of the vehicle has been carried after studying the various designs of the fore-mentioned trikes, followed by its advantages and disadvantages.All the design issues were studied and an attempt has been made tosolve them in the present design. Then, the design is subjected to various load conditions at the sides and front with finite element analysis using ANSYS. It was also made sure that the components used where readily available so that without a major modification, we can use it in the manufacturing process.
Designing and Assembly of the vehicle:Solidworks-2012
Roll cage analysis: ANSYS
Frame: IS1239 MS 1’ inch rod
Welding type: MIG
Bending: Mechanical type bending
Brake: Hub brake and Rim brake
Steering: Rack and Pinion
Motor: 0.5 HP , 24V PMDC
Battery: 12V, 35 am-hr
Suspension: Spring-arm suspension type
Drive train: Sprockets and chain
Controller unit: PWM unit
Tyres: Cycle tyre 28 inch diameter
Individual suspension system to the front two wheels.
Rack and pinion steering system.
IS1239 MS frame
Seating position – enabling complete view to both drivers.
The design section is classified as follows:
Roll cage design and analysis
ROLL CAGE DESIGN:
Roll Cage Model Using Solidworks:
Roll cage provides three dimensional stability and safety to the drivers.The roll cage was designed with utmost care to reduce the weight without compromising the safety of driver. The rules for designing the roll cage were carefully revived and the design was made in such a way that each and every member falls within the rules. The material for the rollcage is chosen as IS1239 mild-steel after considering various materials in terms of material strength, its availability and cost.
Table showing the list of various available materials:
YIELD STRENGTH (KSI)
MODULUS OF ELASTICITY (KSI)
COST PER METER (RS) AISI 1018
Of all the available materials, the chosen one is IS 1239 MS pipe because of its weight and...
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