05447oam 2200661Ia 450 991048395220332120211005234758.0981-15-2002-X10.1007/978-981-15-2(OCoLC)1145578308(OCoLC)1145314343(OCoLC)1151761915(OCoLC)1152540357(OCoLC)1153159407(OCoLC)1153952380(OCoLC)1154458126(OCoLC)on1145578308(MiAaPQ)EBC6131381(PPN)243224516(CKB)5300000000003502(EXLCZ)99530000000000350220200321d2020 uy 0engurun|---aucuutxtrdacontentcrdamediacrrdacarrierKey technologies of intelligentized welding manufacturing welding arc acoustic sensing and monitoring technology /Na Lv, Shanben ChenSingapore Springer20201 online resource (129 pages)8 Microphone Array Technology in Welding Dynamic Process MonitoringPrint version: Chen, Shanben. Key Technologies of Intelligentized Welding Manufacturing : Welding Arc Acoustic Sensing and Monitoring Technology. Singapore : Springer, ©2020 9789811520013 Includes bibliographical references.Intro -- Acknowledgements -- Contents -- 1 Multi-source Information of Arc Welding Dynamic Process -- 1.1 Introduction -- 1.2 Acoustic Signal of Welding Dynamic Process -- 1.3 Classification of Welding Acoustic Signal -- 1.4 Feature and Application Value of Arc Sound Signal -- 1.5 Influencing Factor of Arc Sound Signal -- 1.6 Microphone Array Measurement of Arc Sound -- 2 Acoustic Mechanism and Arc Sound Source Modeling for GTAW Welding -- 2.1 Basic Arc Sound Source Model -- 2.1.1 Weld Pool Oscillation Model of Arc Sound -- 2.1.2 Analysis and Validation of Sound Source for GTAW2.1.3 Influence of Welding Parameters on Arc Sound Signal During Dynamic Welding -- 3 Feature Extraction and Analysis of Arc Sound Signal with Dynamic Welding Process -- 3.1 Welding Operation System Setup -- 3.2 Arc Sound Signal Preprocessing Method -- 3.2.1 Removal of DC Component -- 3.2.2 Noise-Removal Process -- 3.2.3 Region of Interest (ROI) Selected -- 3.2.4 Window Function Addition -- 3.2.5 Analysis of Arc Sound Signal in Short Time Domain -- 3.2.6 Frequency-Domain Analysis of Arc Sound Signal -- 3.2.7 Time-Frequency Analysis of Arc Sound Signal3.2.8 Relationship Between Sound Feature and Penetration of Weld Pool -- 4 Channel Generation Mechanism and Modeling for Arc Sound Signal During GTAW -- 4.1 Generation Mechanism of Arc Sound Channel -- 4.2 Arc Sound Channel Modeling Based on Cepstrum Coefficient -- 4.2.1 A Mathematical Model Based on Cepstrum Analysis -- 4.2.2 Cepstrum Coefficients Model of the Arc Sound Signal -- 4.3 Arc Sound Channel Modeling Based on Linear Predictive Analysis -- 5 Prediction Model Establishment Based on Arc Sound Feature Array -- 5.1 Welding Penetration Recognition Analysis Using Arc Sound Signal5.2 Prediction Model Using BPAdaBoost Neural Network for GATW Welding -- 5.3 Classification Model Using Hidden Markov Model -- 5.3.1 Wavelet Analysis -- 5.3.2 Modeling Based on Hidden Markov Model -- 5.3.3 Comparing with Traditional Model -- 6 Relationship Modeling Between Weld Pool Collapse and Welding Penetration Based on Analyzing Arc Sound Features -- 6.1 Welding Experimental Design and Arc Sound Signal Collection -- 6.2 Processing of Arc Sound Signal for Weld Pool Collapse -- 6.2.1 De-DC Component Processing -- 6.2.2 Denoising6.3 Accuracy Verification Test for Prediction Model Based on Arc Sound Feature -- 6.3.1 The Piecewise Linear Fitting for Arc Length -- 6.3.2 Validation of Arc Length Prediction Model -- 6.4 Prediction Experiment of Welding Pool Collapse -- 7 Real-Time Control of Welding Penetration via Arc Sound Signal for GTAW Welding -- 7.1 Design of Real-Time Processing Software for Arc Sound Signal During GTAW Welding -- 7.2 Arc Height Tracking Control Experiment via Arc Sound Signal of GTAW Welding -- 7.3 Welding Penetration Control Experiment via Arc Sound Signal of GTAW WeldingThis book gives a full picture of the welding quality real-time control via arc sound information. This book presents all aspects of acoustic signal research during the welding dynamic process from the last five years. It also offers valuable and practical strategies for achieving the real-time control of welding quality via arc sound signal. Researchers, scientists, and engineers who have interests in intelligent welding could acquire intensive view and experiment procedures from the book.WeldingWelding industryWeldingfast(OCoLC)fst01173568Welding industryfast(OCoLC)fst01173614Welding.Welding industry.Welding.Welding industry.671.5/2Lv Na926035Chen Shanben915532EBLCPEBLCPGW5XEYDXLQUOCLCQOCLCFUKAHLUKMGBORUBOOK9910483952203321Key technologies of intelligentized welding manufacturing2079089UNINA01750nam0 22003613i 450 VAN0028773620250604021731.516978-88-13-38638-220250225d2024 |0itac50 baitaSPAIT|||| |||||i e nncAmbiente, sviluppo, tecnologiacooperazione umana e ruolo del dirittoatti del dialogo italo-latinoamericano, 15-16 febbraio 2023, Consiglio nazionale dell'economia e del lavoroa cura di R. Barra ... [et al.]MilanoWolters Kluwer CEDAM2024XVIII, 231 p.24 cmIn copertina: CSGLA Università di Roma Tor Vergata001VAN002877402001 Roma e America210 MilanoWolters Kluwer CEDAM1988-16VAN00294182Ambiente desarrollo tecnologÍa : cooperación humana y papel del derechoAmbienteVANC016032FIMilanoVANL000284BarraRodolfoVANV242287CEDAM <editore>VANV111515650Wolters Kluwer <editore>VANV112727650ITSOL20250606RICAhttps://shop.wki.it/libri/ambiente-sviluppo-e-tecnologia-cooperazione-umana-e-ruolo-del-diritto-s786205/https://shop.wki.it/libri/ambiente-sviluppo-e-tecnologia-cooperazione-umana-e-ruolo-del-diritto-s786205/BIBLIOTECA DEL DIPARTIMENTO DI SCIENZE POLITICHEIT-CE0182VAN04VAN00287736BIBLIOTECA DEL DIPARTIMENTO DI SCIENZE POLITICHE04CONS LT DIR AMB 04NS 1649 569 20250225 BuonoAmbiente, sviluppo, tecnologia4301071UNICAMPANIA01261nam0 22003131i 450 UON0040152720231205104658.637978-38-233-6568-620111129f2011 |0itac50 bagerDE|||| 1||||Historische Syntax des Deutscheneine EinführungJürg Fleischer, in Zusammenarbeit mit Oliver SchallertTübingenNarrc2011357 p.24 cm.001UON002659942001 Narr Studienbücher210 TübingenNarrLingua tedescaGrammaticaUONC028580FILingua tedescaGrammatica storicaUONC077626FIDETübingenUONL000208435Lingua tedesca. Grammatica21FLEISCHERJürgUONV211047476856SCHALLERTOliverUONV211048707174NarrUONV246201650ITSOL20251003RICASIBA - SISTEMA BIBLIOTECARIO DI ATENEOUONSIUON00401527SIBA - SISTEMA BIBLIOTECARIO DI ATENEOSI TED 13 FLE SI 1924 7 Historische Syntax des Deutschen1348128UNIOR