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Accession number: 11700975 Title: Analysis of Dynamic Test Signal for Bolt Using Empirical Mode Decomposition (EMD) Authors: Ying Li1 ; Dongzi Pan2 Author affiliation: 1 Zhejiang Water Conservancy & Hydropower Coll., Hangzhou, China 2 Zhejiang Inst. of Hydraulics & Estuary, Hangzhou, China Source: 2010 International Conference on E-Product E-Service and E-Entertainment (ICEEE 2010) Publication date: 2010 Pages: 4 pp. Language: English ISBN-13: 978-1-4244-7159-1 Document type: Conference article (CA) Conference name: 2010 International Conference on E-Product E-Service and E-Entertainment (ICEEE 2010) Conference date: 7-9 Nov. 2010 Conference location: Henan, China Publisher: IEEE Place of publication: Piscataway, NJ, USA Material Identity Number: YXB0-1902-971 Abstract: Based on the improved empirical mode decomposition (EMD) algorithm, a signal processing method for dynamic testing of the bolt anchorage system is proposed. As a self-adaptive approach, EMD method can be used to decompose the local characteristics of the no-stationary and nonlinear signals into several fluctuations and trend items with different time scales step by step. Defects information of the bolt anchorage system, which gained from signal separation and diagnosis of stress wave reflection with EMD method, is obtained by getting ride of errors from actual measured signals. The conduction results, with a model test shown, demonstrate that this method is a simple and effective approach with adaptive resolution, and can get more accuracy and flexibility. Number of references: 5 Inspec controlled terms: anchors - dynamic testing - fasteners - nondestructive testing - signal processing Uncontrolled terms: dynamic test signal - improved empirical mode decomposition - bolt anchorage system - self-adaptive approach - stress wave reflection Inspec classification codes: B6140 Signal processing and detection - B0590 Materials testing - E2210 Mechanical components - E1630 Testing Treatment: Practical (PRA); Experimental (EXP) Discipline: Electrical/Electronic engineering (B); Manufacturing and production engineering (E) DOI: 10.1109/ICEEE.2010.5660614 Database: Inspec Copyright 2011, The Institution of Engineering and Technology |
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