A study about how to use experimental design to increase the efficiency in a research project

8th International Conference on Advanced Concepts in Mechanical Engineering

Cristea, G.^1 ; Constantinescu, D.M.^2 ; Andreescu, C.^1 ; Iozsa, M.D.^1

Automotive Engineering Department, University Politehnica of Bucharest, Romania^1

Department of Strength of Materials, University Politehnica of Bucharest, Romania^2

关键词: Flight time;    Fractional factorials;    Full factorial;    Global behaviors;    Input datas;    Paper clips;    Paper weight;    Physical quantities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/7/072007/pdf
DOI  :  10.1088/1757-899X/444/7/072007

来源: IOP

【 摘 要 】

In the design of a product, creating a model generally involves establishing a number of physical quantities which are allowed to be modified. Therefore experimental studies are needed to impose different values of these parameters and to measure the responses obtained. The experimental design consists of selecting and ordering the tests as to identify, at lower costs, the effects of the parameters on the response of the product. To perform an experimental design with a paper helicopter it is mandatory to identify the desired output, which would be the response variable. A good helicopter is one which stays in the air for a longer time, so the response variable would be flight time. The experiment input data are varied by using different types of paper weight, longer or shorter leg and rotor lengths, and adding or removing paper clips. In this paper two approaches were made: one with the full factorial plan, in which we considered that the factors had only two levels and the second with the fractional factorial plan using the Taguchi tables. At the end of the experimental design, a model of the global behavior is available, which can be used to carry out simulations.