Through user requirement to design wheelchair improvement by integrated QFD, AHP and TRIZ method

Bahruddin, Nur Farhin (2023) Through user requirement to design wheelchair improvement by integrated QFD, AHP and TRIZ method. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

	Text (24 Pages) Through user requirement to design wheelchair improvement by integrated QFD, AHP and TRIZ method.pdf - Submitted Version Download (652kB)
	Text (Full Text) Through user requirement to design wheelchair improvement by integrated QFD, AHP and TRIZ method.pdf - Submitted Version Restricted to Registered users only Download (13MB)

Abstract

Wheelchair is one of the most common used assistive devices to enhance personal mobility for people enjoying their human right and living in dignity. The proper wheelchair allows user to move around freely to engange their physical life doing activities. Wheelchair use and acceptability affect how safe the wheelchair is to carry out activities including having trouble when travel along a bad road that make the wheelchair jump over bumps or uneven surface. Wheelchair is a backbone of a disable person and must strong enough to sustain the loading of human. This project’s research steps include a multi-step integrated QFD,TRIZ and AHP technique. To design a wheelchair that meets user’s requirement (CR) to product features and problem by enhance product universal feature and function, Quality Function Deployment (QFD) is applied. This method helps us collecting the date and translate into technical characteristic. After that, integrating QFD method with Analytic Hierarchy Process (AHP) and Theory of Inventive Problem Solving also distributed.The first stage of this project is conducting a questionnaire to carried out user’s need and ranked based on their technical characteristic by using AHP Pairwise Comparison Matrix. This primary tool is House of Quality (HOQ) which import all the data and calculated inside.The implemented method of QFD is build to know the negative correlation before importing to the TRIZ problem solving to find out the design direction. The problem are solved from the negative correlation using tools in TRIZ 39 TRIZ Parameters and 40 Inventive Principle to identify the best solution for design concept. The concept development is created with 3 concept that followed the user requirement. Next, the completed of HOQ is build to select the final design concept. After select the final design then we started our prototype making and tested the with Design Validation Questionnaire. Based on the survey result, about 50% respondents are choosing Appearance, Function, Wing Design Support and Continuous Footplate for Corvette Wheelchair design concept.This study demonstrated the effectiveness of the three method QFD, TRIZ and AHP approach in reaching new design innovation and the user needs.

Actions (login required)

View Item