刀具破损声发射监控系统的研制-机械工程专业毕业论文.docx

上海交通大学工程硬士学位论文刀具破损声发射监控系统的研制摘要
本文主要讲述了一种刀具破损声发射监测系统的开发研制过程以及其功能构成和性能分析。
论文首先介绍了当今世界上机械制造工业的发展方向,提出了对刀具加工过
程进行实时监测的重要性,通过对刀具加工过程监测技术和声发射技术的发展历程分析,得出将声发射技术应用于刀具状态监测是可行并且有效的。
其次,本文描述了系统结构,确立了以声发射传感器、数字存储示波器、工业控制计算机和监控软件为基本构成的实验及监控系统构成,通过对实验数据分析得出刀具破损的声发射信号特征波形,运用虚拟仪器技术和C++编程语言完成
系统功能,详细介绍了刀具状态声发射信号的数字处理方法及应用软件的编制过
程。
最后,本文分析了该刀具破损声发射监测系统的性能,通过现场实际应用实验得出系统的误报率和漏报率,总结了系统的应用情况和优缺点,对系统的改进和推广提出意见。
本文论述的研究课题其思想一方面要研制出一套系统,即刀具破损声发射监测系统,该系统在加工过程中出现破损情况下能够对刀具的破损状态及时准确地发出警报,以提醒操作工刀具已经损坏,及时换刀;另一方面又要考虑到追踪当前国际先进技术,对刀具加工状态作定性分析,为将来技术上的发展和产品的推广应用作准备。
关键词:刀具破损,声发射传感器,虚拟仪器,数据采集,数字信号处理,c语
言编程
上海交通大学工程硕士学位论文
The Development of Tools Breakage Monitoring System Using Acoustic Emission Technology
Abstract
ThiS article mainly expounded the experimental method and the process of development for a typical Tools Breakage Monitoring System using acoustic emission technology It came from the tools breakage issues in the industrial production.
Firstly,the development direction of Today’s machinery manufacturing was concluded that the monitoring to tools working process is very the development of the tools working process monitoring and the
acoustic emission technology,the author pointed out that it iS practicable and effective
to monitor tools working process on-line by using acoustic emission technology.
Secondly,the article described the construction of the construction
composed of Acoustic Emission Sensor、Digital Storage Oscilloscope、puter and Monitoring analyzing the typical waveform oftools breakage acoustic emission signals,we can get the specific values to distinguish the valid tools breakage acoustic emission ,the author described the digital processing method and the application software programming in details.
At article analyzed the performance of the error and the omission alarm times of the system Call be predicted through the experimerit of the the end of t