基于VB和Matlab混编的振动时效系统研究  

Study of vibration stress relief system based on VB and Matlab

作　　者：梁西昌 万熠[1] 朱振杰[1] 寇兆军 张东[2] 

机构地区：[1]山东大学高效洁净机械制造教育部重点实验室,山东济南250061 [2]山东大学齐鲁医院,山东济南250012

出　　处：《机电工程》2014年第11期1401-1405,共5页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金资助项目(51175306);教育部新世纪优秀人才资助项目(NCET-11-0310);山东大学基本科研业务费专项资金资助项目(2014JC020)

摘　　要：针对现有部分振动时效控制系统存在的灵活性差、自动化程度低等问题,对振动时效系统中的数据采集、激振电机控制、变频器控制等方面问题进行了研究,对频谱分析法判定工件固有频率的理论依据进行了推导。采用VB和Matlab混编构建了振动时效控制系统,结合数据采集卡、变频器和激振电机等,开发出了振动时效系统。设计了包括数据采集模块和激振电机模块等硬件系统以及包括人机交互界面、扫频模块、频谱分析模块和时效处理模块的控制系统。利用振动时效前后残余应力实测对比法,对振动时效效果进行了定量评定。研究结果表明,经过该系统处理的试件残余应力平均下降了46.62%,达到了振动时效消除残余应力标准,证明了系统的有效性;并且该系统开发周期短、自动化程度较高。Aiming at the disadvantages of low flexibility and low degree of automation of existing control system, the data collection, control of vibration motor and transducer were studied in vibration stress relief system. The spectrum analysis method was derived in theory and used to determine the natural frequency of parts. A vibration stress relief control system was developed with the combination of VB and Matlab. The vibration stress relief system were also contained data acquisition card, transducer and vibration motor. Both hardware and control system were designed, in which the control system contained user interface, scanning module, spectrum analysis module and relief module. By using contrast the residual stress before and after vibration relief, the effectiveness of the system was evaluated. The results indicate that the average residual stress declined by 46.62% after vibration relief, which reached the vibration stress relief on eliminating residual stress standard and proved the effectiveness of the system. The system has short development cycle and high degree of automation.

关 键 词：振动时效 残余应力 VB与Matlab混编 频谱分析 

分 类 号：TH113.1[机械工程—机械设计及理论] TH39