Results 11 to 20 of about 24,172 (336)
Multiscale Characterization of Erosion of TA2 Titanium Alloy Welded Joints
Frontiers in Materials, 2022 To prolong the service time of ship and seawater piping systems, titanium alloys have a series of excellent properties, such as their low density, high strength, and seawater corrosion resistance, and they have become the main material used in ocean ...
Ran Liu, Yingshuang Liu, Dalei Zhang
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Review on the prediction of residual stress in welded steel components [PDF]
, 2020 Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd +2 more
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Applied Sciences, 2022 Coal gangue is one of the largest solid wastes in the world. In previous studies, the influence and mechanisms of rainfall infiltration on coal gangue slope stability and possible rain erosion have been studied through theoretical analysis, numerical ...
Yun Tian +6 more
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“Pipe organ” air-coupled broad bandwidth transducer [PDF]
2017 IEEE International Ultrasonics Symposium (IUS), 2017 Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined
Zhu, Botong +4 more
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Nonlinear Coupled Motions of a Pipe-in-Pipe System Experiencing Vortex-Induced Vibrations
Nonlinear Dynamics, 2023 Abstract This paper delves into the dynamics of the pipe-in-pipe system, crucial in offshore oil and gas exploration, featuring an inner drill string nestled within an outer riser. A reduced-order model with five degrees of freedom is proposed to capture the coupled dynamics of this system.
Xiangyu Hou +3 more
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Fluids, 2021 The presence of spherical solid particles immersed in an incompressible turbulent flow was numerically investigated from the perspective of the particle mass fraction (PMF or ϕm), a measure of the particle-to-fluid mass ratio.
Carlos Alberto Duque-Daza +2 more
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Thermal coupling between a spiral pipe and a conducting volume [PDF]
International Journal of Heat and Mass Transfer, 2014 Abstract Here we document the effect of flow configuration on the heat transfer performance of a spiral shaped pipe embedded in a cylindrical conducting volume. We considered several configurations with fixed volumes of fluid and solid. First, we optimized the geometry of two spiral pipes with varying spacing between the spiral turns and the vertical
Alalaimi, M, Lorente, S, Bejan, A
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Design of an In-Pipe Robot Coupled With Multiple Cams
IEEE Access, 2023 The inchworm in-pipe robot has the advantages of stable support, low walking resistance, and high flexibility. However, the gait motion of in-pipe robots relies on the precise coordination of three motors, which greatly increases the complexity of control.
Qizhi Xie +3 more
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Evaluation of the effects of a load shedding at a lignite power plant
Energy Science & Engineering, 2021 The load‐shedding scenario describes an unscheduled load reduction in a power plant so that it produces only the electricity that is needed by the plant itself. The reason for such a scenario is a collapse of power supply in the transmission network.
Jens H. Prause +4 more
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Nuclear Engineering and Technology, 2017 In order to monitor the pipe thinning caused by flow-accelerated corrosion (FAC) that occurs in coolant piping systems, a shear horizontal ultrasonic pitch-catch waveguide technique was developed for accurate pipe wall thickness monitoring.
Yong-Moo Cheong +2 more
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