Design And Implementation Of Test And Control System Software For Mechanical Properties Of Metallic Materials

Metal materials are indispensable in the study of industrial production and materials science.For example,boilers operating in power plants,supercritical generator sets,and aerospace engines in the aerospace industry use many heat-resistant steels and high-temperature alloy materials.Damage to metal components in these devices will cause catastrophic losses to the industry and,in severe cases,threaten people's lives.Among them,creep failure is its most important form of damage.China is implementing a "big aircraft project" in which the engine is the key.According to incomplete statistics,a large number of engine failure analyses indicate that the fracture failure of rotating components is as high as 80% or more.Therefore,it is necessary to design a more scientific and reliable mechanical performance test control system for metal materials to provide accurate test results for production,in order to avoid the application of unqualified alloy materials to practical production,in order to protect national property and people's safety.This project is derived from the equipment modification project of the creep laboratory of a metal research institute in China.Based on the in-depth understanding of relevant theoretical knowledge and the research status at home and abroad,the model is designed and implemented to meet the mechanical standards of metal materials.The software part of the control system.In this paper,the theoretical basis of the mechanical properties,test methods and creep durability life prediction methods used in the system are introduced in detail.The design goals of the system are analyzed.The system scheme,the function and other requirements are determined from the problems existing in the original system.The requirements of the system are described in two aspects.Then,the system design is described in detail from four aspects: overall architecture,hardware design,software design and database table design.Finally,the scientific and practical design of the system software is verified by practical application.Sex,in order to provide trials for similar units to provide practical and theoretical references.Compared with the singularity of the system before the transformation,the system can meet the requirements of the same machine in the laboratory for high temperature long-lasting,high temperature creep,cycle fatigue,relaxation and elastic modulus calculation,and All test procedures were designed in accordance with the latest national standard metal material test methods.At the same time,the system has been designed to be compatible with machines from different manufacturers at the beginning of the design,and the number of machines can be continuously increased with the expansion of the laboratory.In addition,the database system replaces the original file system,ensuring reliable storage of data and efficient query of data;adding power-off recovery function to ensure trial interruption caused by unexpected power failure or abnormal operation;multi-threaded application makes The system can monitor more than 100 devices in real time on the basis of the original system without causing software jam or delay.Finally,the correctness of the parameters was verified at all test parameter inputs,which improved the accuracy and reliability of the test.At present,the system software has been put into practical use in the laboratory,its program writing specification,reasonable structure design,complete and stable functions,high security,strong scalability,easy maintenance,so it has high practical value.