Research And Realization Of Digitized Quality Inspection System For Aerospace Energy Storage Parts

With the development and innovation of global aerospace technology,the world’s space countries,such as the United States,China,Russia,Japan,establish their own space development strategies,goals or plans according to their own national requirements and characteristics.In the future,due to the gradual development and utilization of space resources,the number of spacecraft and space carriers will be largely increased,also the cost and reliability of transmission will be fully considered.Aerospace energy storage component is a kind of typical pressure vessel.As the key component of the aerodynamic structure of spacecraft and spacecraft,it is mainly used to store gas and liquid media,and to provide power propulsion and pressure for spacecraft.More and more storage component has been applied to spacecraft and space carriers successfully.According to previous experience,it is found that the quality performance of aerospace energy storage components is related to the running life and reliability of the whole spacecraft.This paper has designed a set of multi-function digital detection system for cylinder-type aerospace energy storage components.A number of performance tests including initial volume and residual volume measurement,airtight performance test,strength test,fatigue test,blasting test have been integrated in the same detection system platform to achieve product testing process automation and detection of digital information management.The main work of the paper has the following aspects:(1)Through the analysis of the requirements of the digital detection system and the test technology,the system design scheme was determined,including: volume detection method research and design,system composition,etc.(2)Through the analysis of the data exchange structure of the system,the OPC communication mode between application software WinCC,PC Access,MATLAB and PLC was realized.(3)Using the SIMATIC S7-200 SMART PLC as the system main controller the control program framework,the variable allocation and the test program was completed.In order to improve the control precision,response speed,stability and reliability,the system used the fuzzy logic toolbox and Simulink integration environment of MATLAB software as the platform to build the pressure fuzzy PID control algorithm,and used OPC communication mode to achieve pressure simulation of control algorithm between MATLAB and PLC.(4)The characteristics of Siemens WinCC configuration software were introduced.Based on the analysis of the software requirements and the characteristics of the test process,the real-time database design,the experimental process animation design and the visual interface design of the visualization software was completed.At the same time,this paper introduced the function design of system software in detail,and use C and VBS scripts to realize real-time monitoring,collection,storage and report export of system detection.(5)In the end,the paper elaborated the entire system equipment installation and system debugging,such as the overall equipment layout,parameter calibration,PLC program debugging and so on.