Connect Measurements of Car Body Parts to Adjustments in Production Line

Abstract: The production of a car body part involves assembling each ingoing part into an assembly fixture that dictates the inherent geometry between the ingoing parts. The geometry of samples of finished body parts is continuously measured and adjustments to the assembly fixture are done on the basis of measurement results. The work of the thesis is to use Case-based reasoing technique to develop a system connecting the measurements of car body parts to adjustments done in the production line. Case-based reasoning solves the target issue with previous successful solutions to the similar problems. In this thesis, the Euclidean distance is selected to measure the similarity between the target case and source case. Correlation analysis is done to find the important attributes, measurement points. We present the results we found, describe the system implementation and discuss the future work. Key words: Case-based reasoning, production line, measurement data, adjustmentdata, Euclidean distance and correlation analysis.