Title :
A single-sample failure model and its application to the CNC system
Author :
Zhou, G.W. ; Jia, Y.Z.
Author_Institution :
Mech. Eng. Dept., Jilin Teachers´´ Inst. of Eng. & Technol., Changchun, China
Abstract :
A new single-sample failure model for a CNC system, whose operation has been followed up by the authors for a period of over two years, is proposed in this paper. A reliability database has been created to collect all the failure data, from which the main source of failures can be identified. The Bayesian method is used for the reliability evaluation and the weighted least squares method is used for determining the parameters of the reliability function. Real failure data from the tested special CNC system have been used to illustrate the new approach.
Keywords :
Bayes methods; computerised numerical control; failure (mechanical); least squares approximations; machine tools; reliability; Bayesian method; CNC system; machine tools; reliability database; reliability evaluation; reliability function; single-sample failure model; weighted least squares method; Bayesian methods; Computer numerical control; Databases; Failure analysis; Hardware; Least squares methods; Machine tools; Mechanical engineering; Reliability engineering; Servomechanisms; Bayesian method; CNC system; failur emodel; failure mode; reliability estimation; single-sample;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5536741
