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Formation of the acoustic field of a Rayleigh-wave transducer in an object with a protrusion. Part I. Protrusion with a right angle
Springer Science and Business Media LLC - - 2014
A. R. Baev, A. L. Maiorov, M. V. Asadchaya, O. S. Sergeeva
Attention is drawn to the possibility of using transducers of Rayleigh waves as the sources (receivers) of transverse waves for ultrasonic testing of objects with auxiliary protrusions, at which elastic modes are transformed and scattered. The acoustic section was analyzed and the influence of both the curvature of the radius junction of a protrusion and the wave frequency on the parameters of the... hiện toàn bộ
Numerical Simulation of the Inverse Problem of Magnetostatic Flaw Detection
Springer Science and Business Media LLC - Tập 41 - Trang 719-723 - 2005
A. N. Pechenkov
Integral equations applied to solution of a three-dimensional inverse problem of magnetostatic nondestructive testing have been considered.
Detection of Echo Signals from Discontinuities Due to the Use of Superresolution Procedures for Testing Concrete Piles by the Impact Method
Springer Science and Business Media LLC - Tập 59 - Trang 868-875 - 2023
E. G. Bazulin
The impact method is used to test concrete piles. It allows one to record echo signals from the toe of the pile and from reflectors in it. However, the resolution of the measured echo signal is not high enough to confidently separate the reflected pulses and determine their phase. The use of the maximum entropy (ME) method makes it possible to increase the resolution of echo signals obtained by th... hiện toàn bộ
Instruments for Magnetic Phase Analysis of Articles Made of Austenitic Corrosion-Resistant Steels
Springer Science and Business Media LLC - Tập 41 - Trang 701-709 - 2005
M. B. Rigmant, A. P. Nichipuruk, B. A. Khudyakov, V. S. Ponomarev, N. A. Tereshchenko, M. K. Korkh
A brief review in the field of investigation of properties of austenitic alloys is presented. New instruments developed for nondestructive testing of the phase composition and magnetic properties of austenitic corrosion-resistant steels at the Institute of Metal Physics, Ural Division, Russian Academy of Sciences, are described. The first section of the paper is devoted to such directions as “ferr... hiện toàn bộ
A Dipole Model for Magnetic Leakage Fields Created by a Circular Butt-Welded Joint
Springer Science and Business Media LLC - Tập 41 - Trang 614-618 - 2005
Yu. L. Gobov, V. E. Loskutov, Yu. Ya. Reutov
Magnetic leakage fields created by circular butt-welded joints of a trunk pipeline are characterized by a variety of topographies differing in both shape and extension. Four sources of magnetic leakage fields around a circular welded joint are distinguished. Each source is simulated by a dipole moment with certain parameters. The developed mathematical model makes it possible to describe with high... hiện toàn bộ
Tác động của biến dạng do cuốn và kéo đơn trục lên cấu trúc cũng như các tính chất từ tính và cơ học của sắt Armco, thép 12X18H10T và vật liệu composite gồm thép 12X18H10T-sắt Armco-thép 12X18H10T Dịch bởi AI
Springer Science and Business Media LLC - Tập 47 - Trang 369-380 - 2011
E. S. Gorkunov, S. M. Zadvorkin, E. A. Kokovikhin, E. A. Tueva, Yu. V. Subachev, L. S. Goruleva, A. V. Podkopytova
Nghiên cứu này xem xét tác động của biến dạng elasto-plastic do cuốn và kéo đơn trục đến cấu trúc cùng các tính chất từ tính và cơ học của sắt Armco, thép 12X18H10T, và vật liệu composite ba lớp gồm thép 12X18H10T-sắt Armco-thép 12X18H10T. Các đặc tính từ tính, biến đổi một cách độc đáo trong quá trình biến dạng elasto-plastic, do đó cho phép sử dụng chúng như là các tham số để ước lượng các tính ... hiện toàn bộ
#biến dạng #elasto-plastic #cơ học #từ tính #sắt Armco #thép 12X18H10T #vật liệu composite
Analysis of Influencing Factors of Electrostatic Detection System Based on Double Electrode
Springer Science and Business Media LLC - Tập 59 - Trang 691-701 - 2023
Hong Chen, Bingting Zha, Chengjun Wang, Qi Zhong
This study aims to explore the influence of various factors of the electrostatic induction system on the object information of double-electrode electrostatic detection. Based on the principle of electrostatic induction, we first establish a system model and a mathematical model for single-electrode electrostatic detection. We analyze the effect of various factors on the target information of singl... hiện toàn bộ
Diagnosing the Vibration State of the Rotors of a Double-Flow Turbojet Engine Using Phase-Frequency Characteristics Obtained without Using a Shaft Position Sensor
Springer Science and Business Media LLC - Tập 57 - Trang 846-855 - 2022
S. L. Zvonarev, A. I. Zubko, A. A. Zubko
Theoretical and practical approaches to constructing phase-frequency characteristics of a double-flow turbojet engine (TJE) are considered and the results of experiments are presented. The novelty of this work lies in the use of the vibration phase to diagnose the technical condition of the turbojet engine rotors and in the elimination of the use of information from the sensor of engine’s initial ... hiện toàn bộ
Some special features of using DGS (AVG) diagrams during ultrasonic testing of welded joints
Springer Science and Business Media LLC - Tập 45 - Trang 445-448 - 2009
V. M. Ushakov, D. M. Davydov, V. V. Mikhalev, I. I. Muravskaya
The results of development of a method and piezoelectric probes with DGS (AVG) diagrams for ultrasonic testing devices are considered. The technique is compatible with European standards for ultrasonic testing of welded joints as regards the parameters of piezoelectric probes and sensitivity tuning taking into account damping of elastic waves. The succession of operations in tuning of devices, ult... hiện toàn bộ
Dynamics of the establishment of magnetic flux in finite-length ferromagnetic rods (linear model)
Springer Science and Business Media LLC - - 2004
G. A. Burtsev
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