Research on Maintenance Cost of Equipment Based on Partial Least Squares Regression Methods

Current measurement of price fixing that adopt maintenance cost addition means didn't present the real needs of equipment repaired,a estimation method of equipment maintenance cost based on partial least squares regression methods was put,every objective factors that affected the maintenance cost were considered comprehensively,the estimate model of one type of equipment maintenance cost was created,and the assessment method of precision was designed. Partial least squares regression has incomparable advantages in aspects of small samples handling,more independent variables and multi-share with linear characteristics of variables. The fitting degree of estimation model of equipment maintenance cost was well,and the variables cumulative explaining ability was strong. The computing result for a case proved that the estimating error was less than 5%.