Acoustic Emission Sound Source Localization for crack in the pipeline
This paper investigates the use of acoustic emission (AE) for simulated crack in a stainless steel pipeline. An approach to liner sound source localization in pipeline using two or more acoustic sensors is described, and rules to define timing parameters - peak definition time (PDT), Hit definition time (HDT) and Hit lockout time (HLT) of acoustic emission signal is studied in order to improve the sound localization accuracy. Experiments were conducted on a stainless steel pipeline with no special features, such as branch, weld, and flange on the experimental part. The detail process of Nielsen-Hsu Pencil Lead Break method which is used to simulate the crack, and main considerations in acoustic emission transducer selection are also introduced in this paper.
Acoustic emission Pipeline, Sound source location, Simulated crack
Liying Sun Yibo Li
Dept. of Energy and Mechanics Engineering Tianjin Institute of Urban Construction, Tianjin 300384 St State Key Lab. of Precision Measurement Technology and Instrument Tianjin University, Tianjin, 30007
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
4298-4301
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）