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Yehia A. Khulief
Researcher at King Fahd University of Petroleum and Minerals
Publications - 75
Citations - 2102
Yehia A. Khulief is an academic researcher from King Fahd University of Petroleum and Minerals. The author has contributed to research in topics: Finite element method & Vibration. The author has an hindex of 25, co-authored 75 publications receiving 1843 citations. Previous affiliations of Yehia A. Khulief include University of Alabama at Birmingham & University of Illinois at Chicago.
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Vibration analysis of drillstrings with self-excited stick–slip oscillations
TL;DR: In this article, a dynamic model of the drillstring including the drillpipes and drillcollars is formulated and the equation of motion of the rotating drillstring is derived using Lagrangian approach in conjunction with the finite element method.
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A continuous force model for the impact analysis of flexible multibody systems
TL;DR: In this article, a continuous impact model applicable to multibody systems consisting of interconnected rigid and flexible bodies is presented, where the continuous impulsive forces that act during the short-lived interval of impact are written in terms of relative displacement and velocity of the impacting bodies.
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Finite element dynamic analysis of drillstrings
Yehia A. Khulief,H. Al-Naser +1 more
TL;DR: In this article, a dynamic model of the drillstring including both drillpipe and drillcollars is formulated, which accounts for the gyroscopic effect, the torsional/bending inertia coupling, and the effect of the gravitational force field.
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Acoustic Detection of Leaks in Water Pipelines Using Measurements inside Pipe
TL;DR: In this paper, the feasibility and limitations of using in-pipe acoustic measurements for leak detection were addressed. And the authors presented an experimental investigation that addressed the feasibility of using acoustic measurements inside a water transmission pipeline.
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Dynamic Analysis of Constrained System of Rigid and Flexible Bodies With Intermittent Motion
TL;DR: In this article, a method for dynamic analysis of large-scale constrained system of mixed rigid and flexible bodies with intermittent motion is presented, where the system equations of motion are written in the Lagrangian formulation using a finite set of coupled reference position and local elastic generalized coordinates.