National Kart Racing Championship - NKRC GoKart Design Report

ABSTRACT:

The design of our Go-kart deals with the engineering and designing process involved in development of each and every system of our vehicle. We used various software’s and manual calculations were made to validate our design.

 INTRODUCTION: 

    Go-kart is a small four wheeled vehicle which can be considered as the miniature version of the race car.Go-kart consists of various systems such as Transmission, Braking, Steering which encompasses the following parts such as Engines, Brakes, Sprocket gears, Wheels etc., This report discusses the various parameters which will be considered in designing the go-kart of Super riders.

   The entire design of the chassis and the other   vehicle components was done using CREO software. We have carried out analysis of the Roll cage, Bumpers, Load analysis using the ANSYS software and we  have also calculated the various factors associated with the engine, brakes, wheels, and gear ,thus ensuring a safe and robust design.

PRELIMINARY DESIGN PROCEDURE:

• Prototype made with simple households and mechanisms were studied
• Floor diagram was drawn for Ergonomics Suitable dimensions were confined
• Computer Aided design were done with CATIA V5
• Analysis of the chassis on different impact loads by ANSYS software

Step by Step Procedure for Go kart designing:

Making of Gokart

      • Vehicle Length        : 1828.8 mm• Vehicle Width         : 1346.2 mm• Roll Cage Material  : AISI1018    • Tube Dimension     : 25.4 mm• Roll Cage mass       : 30 Kg• Total mass               : 190 Kg• Ground Clearance  : 1.5 inches• Battery                     : 12 V, 10Ah
• Max. Speed             : 80 km/hr• Brake                        : Disc Brake• Steering                   : Bell - crank• Tyres                        : Go – Kart tyres

Analysis:

Steering Calculation of Go kart:

    α – ackerman angle

     L – wheel base

     R – minimum turning radius

     T – front wheel track

     δi – inner wheel turning radius

     δo – outer wheel turning radius

To find ackerman percentage and lock angle,

Simulation of steering made with linkage software , 

This is the must exposure for every college students. The each and every part of the go kart to be designed and manufacured by the students only. This gives confidence for engineers to become entrepreneurs.

CONCLUSION:

As discussed earlier, our approach is to design for the best and still optimize so that we avoid over designing. This would help us to reduce the cost. Thus we fabricated the Kart considering weight reduction and several economical factors. Henceforth during the process of designing our top priority was safety and driver ergonomics. Process of choosing various systems was considered mainly based on its availability in the market.

~ VALLIAMMAI ENGINEERING COLLEGE B.E. 2013 & 2014 BATCH MECHANICAL

~ FOR NKRC SEASON 3 - KOLHAPUR