Reliability Modeling and Analysis of CNC Machine Tools Hydraulic System based on

GSPN Model

Zhiyao Li1, Tiantian Xu1*, Jie Yu2

1Mechanical Manufacturing and Automation, Changchun University, Changchun, 130000, China

2Mechanical and Electrical Engineering, Changchun University, Changchun, 130000, China

Abstract: Traditional reliability modeling method cannot describe the system state in the process of dynamic change. The paper puts forward a modeling method that based on Generalized Stochastic Petri Net (Generalized Stochastic Petri Net, GSPN) on the basis of the thorough analysis. This paper introduces generalized stochastic Petri nets to dynamic reliability modeling of CNC machine tools. In this paper, on the basis of the based on the GSPN model of CNC machine tools hydraulic system reliability modeling, makes the simulation experiment, the effectiveness of the proposed method is verified by simulation experiment, providing theoretical reference for numerical control machine reliability analysis and design.

Keywords: Generalized stochastic Petri nets; CNC machine tools; Hydraulic system; Reliability; Availability