A designed experiment is the simultaneous evaluation of two or more factors (parameters) for their ability to affect the resultant average or variability of a particular product or process characteristics. Taguchi has introduced a methodology for conducting designed experiments for identifying those combinations of factors that gives optimal response or output. To accomplish this in an effective and statistically significant manner, the levels of factors are varied in a strategic manner, the results of the particular test combinations are observed and the complete set of results is analysed to determine the influential factors and preferred levels. Application of Taguchi's method to determine the factors significant in influencing the performance of a gating system using water models, is a novel attempt and not reported in the literature. Though Taguchi's technique of experimental design is well-known, a few important steps are presented here while designing experiments. Taguchi designed certain standard orthogonal arrays using which simultaneous and independent evaluation of two or more parameters for their ability to affect the variability of a particular process characteristic can be done using minimum number of tests.
展开▼
