Condition detection and fault diagnosis system for recoil system based on simulation

Dynamic analysis is carried out for recoil parts in recoil and counter-recoil process to find out the fault effects of liquid and gas leakage of recoil brake and recuperator. In order to detect and simulate the fault occurrence and development process, virtual prototyping is firstly adopted into fault simulation and detection fields in this paper. The basic steps of virtual prototyping development are illustrated. And the virtual prototyping of a type of Self-Propelled Gun is established in ADAMS and Pro/E environments. One typical fault - too much recoil length is taken as research object. The effects of liquid leakage in recoil brake to maximum recoil resistance and maximum recoil length is simulated by virtual prototyping. The extreme quantity of liquid leakage in recoil brake can be obtained from the simulation results. Therefore, deep-seated knowledge about structure and function can be transmitted into shallow rules for fault diagnosis and forecast, which provide simple and effective methods for fault validation and localization in expert systems.