Measurement and analysis of friction and dynamic characteristics of PIG's sealing disc passing through girth weld in oil and gas pipeline

被引：58

作者：

Zhang, Hang ^{[1
]}

Zhang, Shimin ^{[1
]}

Liu, Shuhai ^{[1
]}

Wang, Yan ^{[1
]}

Lin, Li ^{[1
]}

机构：

[1] China Univ Petr, Coll Mech & Transportat Engn, Beijing 102249, Peoples R China

来源：

MEASUREMENT | 2015年 / 64卷

基金：

中国国家自然科学基金;

关键词：

PIG; Rubber friction; Girth weld; Dynamic; CONTACT;

D O I：

10.1016/j.measurement.2014.12.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pipeline inspection gauges (PIGs) are needed for operations such as dewatering, cleaning and internal inspection of the oil and gas pipelines to facilitate improvement in efficiency and safety. The friction and dynamic characteristics, as the sealing disc of a PIG passes through the girth weld in a pipe, has been directly studied using a custom-built experimental setup. The contact behavior between sealing disc and girth weld was analyzed using finite element methods. A two-dimensional section analytical link model of the sealing disc is introduced here and was simulated using the mechanic dynamic analysis software Adams. Our results show that the process of the sealing disc of the PIG passing through the girth weld in the pipe can be separated into three distinct stages: (1) start-up stage, (2) climbing stage, and (3) slope stage. At first, the PIG decelerates due to the friction force and then accelerates after passing through the girth weld. The acceleration and deceleration processes produce axial vibration in PIG. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：112 / 122

页数：11

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