Int J Performability Eng ›› 2019, Vol. 15 ›› Issue (7): 1878-1885.doi: 10.23940/ijpe.19.07.p14.18781885

Previous Articles     Next Articles

Spare Parts Forecast Analysis based on Important Calculation of Element Fault Tree

Xiaoyan Wang*, Hongkai Wang, Jinghui Zhang, and Chun Zhang   

  1. Shenyang Aerospace University, Shenyang, 100136, China
  • Submitted on ;
  • Contact: * E-mail address:

Abstract: Spare parts are an important material basis for the use and maintenance of machine tools, and they are an important factor affecting equipment life cycle costs. In this paper, the element movements and the element action failure modes of equipment operation are found for the machine function unit. The reason of the failure of the unit base element is identified by using the element action fault tree to determine the reason of the fault of the unit base element. The calculation of the importance degree of the machine unit is carried out, and the importance degree is analyzed for rational distribution, thus ensuring the reduction of maintenance costs and the normal operation of the system. It is proven that the method based on the importance of the fault tree of the element action plays a guiding role in the analysis of spare parts.

Key words: spare parts forecast, element action fault tree, reliability, CNC machine tools