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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
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
Application of the acoustic-emission and strain-gaging methods to testing of the residual strength of airplanes
Springer Science and Business Media LLC - Tập 44 - Trang 95-101 - 2008
A. N. Ser’eznov, L. N. Stepanova, A. B. Tikhonravov, E. N. Kulikov, S. I. Kabanov, E. Yu. Lebedev, V. L. Kozhemyakin, A. E. Kareev
The use of acoustic-emission (AE), optical, and strain-gaging methods in cyclic tests of an airplane has been considered. During tests, before the failure of an airplane, three zones were inspected. For this purpose, saw cuts were made in the lower planes of the left and right wings and in the load-carrying structure on the right side. The AE method allowed detection of growing flaws at a 10% load...... hiện toàn bộ
Ultrabroad-band tomography of remote objects
Springer Science and Business Media LLC - Tập 48 Số 3 - Trang 191-196 - 2012
V. P. Yakubov, S. É. Shipilov, D. Ya. Sukhanov, A. K. Razinkevich
The diagnostics of the mass characteristics of a power installation
Springer Science and Business Media LLC - Tập 49 - Trang 354-363 - 2013
G. F. Safina
Studies of direct and inverse spectral problems in terms of free oscillations of a power installation are carried out. The effect of mass characteristics of the power installation on free-oscillation frequencies is studied by the solution of the direct problem, and the increase in mass is shown to result in a decreasing frequency of oscillations. For the first time, the inverse problem, viz., the ...... hiện toàn bộ
Wave-attenuation estimation in fluid-filled steel pipes: The first longitudinal guided wave mode
Springer Science and Business Media LLC - Tập 43 Số 8 - Trang 549-554 - 2007
Na, W. -B., Yoon, H. -S.
Attenuations of the first (or fundamental) longitudinal guided wave modes propagating in liquid-filled steel pipes are numerically investigated. Several filling liquids transported by the steel pipe are considered in the investigation. In the numerical modeling stage, a sink is considered for abandoning standing wave modes caused by the internal liquids; hence, the attenuation dispersion curves be...... hiện toàn bộ
A structured-light method for the measurement of deformations in fuel assemblies in the cooling ponds of nuclear power plants
Springer Science and Business Media LLC - Tập 48 - Trang 705-711 - 2013
P. S. Zavyalov, E. S. Senchenko, L. V. Finogenov, D. R. Khakimov
Increasing the functional reliability, the lifetime, and the burn-up height are significant tasks for improving nuclear fuel. To solve these problems, it is necessary to ensure a high level of geometric stability for fuel assemblies during their operation in nuclear-power plants when mechanical deformations such as bending and twisting of the fuel assemblies are caused by various factors. In order...... hiện toàn bộ
Analysis of acoustic radiation of circular piezoelectric plates with complex shapes in a flat rigid shield
Springer Science and Business Media LLC - Tập 48 - Trang 418-425 - 2012
S. M. Balabaev, N. F. Ivina
Acoustic radiation from circular piezoelectric plates with complex shapes in a flat rigid shield is analyzed on the basis of a combined numerical-analytical method. It is shown that such piezoelectric plates of the first-type ceramics ((ЦТБC-3) provide a higher sensitivity in the transmission mode in comparison to a standard plate. In addition, piezoelectric plates of this type have a lower level ...... hiện toàn bộ
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