Int. J. of Industrial and Systems Engineering   »   2014 Vol.18, No.1

 

 

Title: Economic optimisation in automotive body manufacturing quality control based on multivariate Bayesian control chart

 

Authors: Jian Liu; Chen-peng Pang; Rui Jiang

 

Addresses:
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, Hunan, China
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, Hunan, China
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, Hunan, China

 

Abstract: The present paper is a case study of quality control cost optimisation in an automobile body production system, where the multivariate Bayesian control chart is applied. Based on the enterprise's historical data, the applicability of the proposed Bayesian control method is analysed. The cost function of engine compartment front axle vertical beam welding is clarified, and the parameters of the cost function are determined. The Monte Carlo simulation method is used to testify the improvement of the multivariate Bayesian control chart. Based on the result, it is believed that decreasing the rate of false alarm is an important factor for the economic improvement of the multivariate Bayesian control chart.

 

Keywords: automotive body manufacture; statistical quality control; SQC; multivariate control charts; Bayesian control charts; cost minimisation; statistical process control; SPC; automobile industry; front axle; vertical beam welding; Monte Carlo simulation; false alarms; economic optimisation.

 

DOI: 10.1504/IJISE.2014.064344

 

Int. J. of Industrial and Systems Engineering, 2014 Vol.18, No.1, pp.125 - 138

 

Available online: 14 Aug 2014

 

 

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