Research On Health Monitoring Technology Of Artillery Supply And Delivery System

As an important component of the artillery,the ammunition supply system had a serious impact on the stability and reliability of the artillery weapon system.Based on the analysis of the state parameter characteristics of the ammunition supply system,this paper carried out a research on the ammunition supply system health monitoring technology based on internal and external signal synchronization.The composition and working principle of the ammunition supply system were introduced.With the help of FMECA method,the equipment simulation data,fault history data and expert experience were comprehensively considered.The main failure modes of the ammunition supply system were analyzed,the causes of the failure were analyzed,and the fault monitoring characteristic parameters of all operational phases were extracted.The characteristics of the fault monitoring parameters at each stage were analyzed in detail.Factors such as the structural composition,working principle,and test conditions of the equipment were comprehensively considered,and appropriate parameter monitoring methods,data transmission modes,and internal and external data synchronization methods were selected.The monitoring principle selected the sensor.Difficulties in fault diagnosis of the ammunition supply system were analyzed.By comparing a variety of commonly used models,it was determined to use the kernel principal component analysis method to extract data features.This paper calculated the sum(2T and SPE)and controlled limit of the training data matrix,judged the test data,whether the statistic of the matrix exceeds the control limit,to realize the fault detection;and used the idea of the contribution graph method to solve the variable’s contribution rate,and realized the fault identification according to the size of the contribution rate.A synchronous monitoring system for the operating state of the actuator and the projectile was designed.Parameters for actuator were acquired through sensors and integrated data acquisition equipment.Three constant current sources,three charge amplifiers and corresponding signal conditioning were designed for monitoring the projectile parameters.The written software on the chip completed the digital-toanalog conversion,storage and reading functions of the data;The mechanical shell matches the concave space of the projectile,so that the storage test device collected real-time data with the projectile.Data format conversion and fault diagnosis were prepared for the ultimate failure cause analysis.The performance of the four main modules of the projectile storage test module,including acceleration,thrust,gyroscope,and internal and external signal synchronization,were tested and verified.Using the set faults to verify he system and diagnostic model,the tests showed that the monitoring data in the coordination phase coincided with the actual operation process,which illustrated the effectiveness of the real-time monitoring and signal synchronization of the acquisition system.The faults introduced in the installation test for the coordination phase of the projectile are analyzed,and the extracted results were basically consistent with the faults actually introduced,indicating the feasibility of the fault diagnosis model.