Mohd Nizam Sudin

Design and Development of Low Cost All Terrain Vehicle (ATV)

Two units of all terrain vehicles (ATV) have been designed and developed by 3rd year automotive students of Faculty of Mechanical Engineering (FME), Universiti Teknikal Malaysia Melaka (UTeM). The purposes of this project are to design and develop low cost ATVs. The students have to organize themselves to design and build the ATVs within budget constraint. This project emphasizes on the practical and engineering applications of the subjects Vehicle Dynamics and Automotive Technology which are taken by the students within the same semester (Semester II, Session 2012/2013). The students have all the freedom in deciding the specifications of the ATVs. A 110 cc 4 strokes motorcycle engine is used for the powertrain. Design and analysis of the components are performed using commercial computer aided design (CAD) software. Basic fabrication processes such as cutting, fitting and welding are carried out by the students. The ATVs are evaluated based on functionality and design. The low cost conceptual ATVs have been successfully designed, developed and tested. With further development and research, the ATVs are subjected for improvement. The sustainability of the design and development of the ATVs depends on the material selection, design criteria and components availability.

Design Efficiency Analysis Towards Product Improvement for Eco-Friendly Using DFMA Method

This paper presents the comparative study of design efficiency of two different brands of products, performing the same function using the Design for Manufacturing and Assembly (DFMA) method. The study aims to compare the products on the relative design efficiency. The DFMA method was used as it is a well-established technique for improving the efficiency of the product leading to minimizing production costs. It also shortens product development time by reducing the number of components in a product. The study used two different brands of dry iron as a case study. The result shows that the percentage of the design efficiency of dry iron A is 8.82%, whereas it is 10.34% of dry iron B. Thus, the dry iron B is much better as compared to A in term of its assembly operation and design efficiency. Therefore, the dry iron B is greener than dry iron A. Furthermore, a redesign of dry iron B was proposed and analyzed for the internal validation. The DFMA analysis result shows that the percentage of design efficiency of a new conceptual design of dry iron B increased to 18.08%. The application of the DFMA method to enhance the eco-friendliness of a product has been proven to be highly useful in design work.