用于旧零件内部损伤检测的锤击试验方法研究  

Study of Hammer Test Method of Internal Damage Detection for Old Parts

作　　者：郑伟学 马少花 黄红蓝[1] 毛汉领[1] 

机构地区：[1]广西大学机械工程学院,广西南宁530004

出　　处：《装备制造技术》2016年第1期1-4,共4页Equipment Manufacturing Technology

基　　金：国家自然科学基金(51365006;51445013);广西制造系统与先进制造技术重点实验室课题(14-045-15S05)项目

摘　　要：基于振动特性变化的损伤诊断方法,以模态频率作为损伤识别指标,研究了用于旧零件内部损伤检测的锤击试验方法。从力锤、锤击点、测量点的选择以及采样频率设置等方面进行分析,建立了一个规范的锤击试验过程。并分析了引起试验误差的因素,提出了相应的处理方法。试验结果证明了该方法的有效性、实用性,为再制造工程中旧零件内部损伤的检测提供一种规范化、准确、高效的诊断方法。Vibration characteristic change-based methods for damage detection,using modal frequency as indicator for damage detection,the hammer test method of internal damage detection for old parts is researched. With the analyze of selection of hammer,points of peening and measurement,and sampling frequency Settings etc,a hammer test specification was established. Besides,the causes of experimental error are analyzed,and methods are developed to solve them. Hammer tests have verified the effectiveness and practicability of the new approach,and a standard,accurate and effective diagnostic method is provided for the？internal damage detection for old parts in remanufacturing project.

关 键 词：锤击试验 损伤检测 模态频率 数据处理 

分 类 号：TH17[机械工程—机械制造及自动化]