We will illustrate this principle with examples from the aerospace industry, and describe some relevant research programs. Designed experiments are used primarily for characterization and optimization of products and processes. This presentation discusses an effective strategy for accomplishing these tasks and provides several practical examples. Effects of selecting reasonable parameter alternatives are investigated and results indicate that some alternatives produce considerably different optima. In many experiments, the response is affected by the experimental factors and by random effects of sampling procedures.
Response surface methodology studies the effects of the factors.
The random effects of sampling procedures are variance components. This paper provides experimental designs for estimating both response surface effects and variance components. This approach enables the quick detection and localization of faults based on in-line dimensional measurements of assemblies. The fundamental concepts and industrial implementations are highlighted. A new fault diagnostic method is proposed for assembly processes of compliant beam-types of structures.