NDLI: Experimental Research on the Frictional Resistance of Fluid-Driven Pipeline Robot with Small Size in Gas Pipeline

Content Provider	Springer Nature Link
Author	Zhu, Xiaoxiao Wang, Wei Zhang, Shimin Liu, Shuhai
Copyright Year	2017
Abstract	Pipeline inspection gauge (pig), as a kind of pipeline robot, is commonly used in oil and gas pipelines during different stages of operation to perform functions such as dewatering, cleaning and inspecting. Predicting the motion of a pig to estimate its velocity, position and required driving pressure is essential before pigging. A precise evaluation can greatly help the operator to control the motion of the pig and reduce the pigging risks. The frictional resistance between a pig and the pipeline is a key determinant of the prediction accuracy, and research on the contact behaviour of sealing disc can help to understand the frictional resistance well. As a result, in this paper, an experimental rig for measuring the frictional resistance of the bidirectional pig with high accuracy was developed, and the effects of the sealing disc’s interference, thickness and clamping rate on the sliding friction of the pig were experimentally studied. The corresponding normal force between the sealing disc and the pipeline was obtained by a 2D axisymmetric nonlinear finite element model, and the frictional coefficient with the variation of the sealing disc’s size was presented. Research results show different effects of the sealing disc’s sizes on the frictional force, normal force and the frictional coefficient. In addition, different contact behaviours can be observed by the indication of the frictional coefficient curve. The contact behaviour can be grouped into several conditions, depending on the size of the sealing disc.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	10238883
Journal	Tribology Letters
Volume Number	65
Issue Number	2
e-ISSN	15732711
Language	English
Publisher	Springer US
Publisher Date	2017-03-09
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pipeline robot Bidirectional pig Fluid driven Frictional resistance Frictional coefficient Tribology, Corrosion and Coatings Surfaces and Interfaces, Thin Films Theoretical and Applied Mechanics Physical Chemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Mechanics of Materials Mechanical Engineering Surfaces and Interfaces

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