Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String

Sucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiarity of the proposed design is the usage of thin pla...

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Main Authors: Andrii Velychkovych, Ivan Petryk, Liubomyr Ropyak
Format: Article
Language:English
Published: Hindawi Limited 2020-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2020/3292713
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spelling doaj-4cf90a7232c74c759c9f1e3b644861832020-11-25T01:27:04ZengHindawi LimitedShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/32927133292713Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod StringAndrii Velychkovych0Ivan Petryk1Liubomyr Ropyak2Ivano-Frankivsk National Technical University of Oil and Gas, 76019, 15 Karpatska Str., Ivano-Frankivsk, UkraineIvano-Frankivsk National Technical University of Oil and Gas, 76019, 15 Karpatska Str., Ivano-Frankivsk, UkraineIvano-Frankivsk National Technical University of Oil and Gas, 76019, 15 Karpatska Str., Ivano-Frankivsk, UkraineSucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiarity of the proposed design is the usage of thin plate packages as a bearing elastic element of the shock absorber. This approach to the elastic element’ design provides the shock absorber to be easy to manufacture and operate. Sucker-rod string protection from extra load will increase the sucker-rod pump plant efficiency in general. This study aims at developing shock absorber’s design and studying its most important performance options—strength and rigidity. A mechanical and mathematical model of a shock absorber’s elastic element was developed in order to specify its deformation. A package of thin plates was modelled as an equivalent solid plate with a cylindrical rigidity providing equal properties of the solid model and the plate package. This model makes possible to describe analytically the stress-strain state of the shock absorber bearing elements. The work presents the final expressions of the shock absorber’s strength and rigidity assessing in a convenient form for engineering practice. The numerical approbation of the obtained analytical results was carried out as the case of a plate elastic element. The authors give recommendation on the bearing unit’s design of the shock absorber.http://dx.doi.org/10.1155/2020/3292713
collection DOAJ
language English
format Article
sources DOAJ
author Andrii Velychkovych
Ivan Petryk
Liubomyr Ropyak
spellingShingle Andrii Velychkovych
Ivan Petryk
Liubomyr Ropyak
Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
Shock and Vibration
author_facet Andrii Velychkovych
Ivan Petryk
Liubomyr Ropyak
author_sort Andrii Velychkovych
title Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
title_short Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
title_full Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
title_fullStr Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
title_full_unstemmed Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
title_sort analytical study of operational properties of a plate shock absorber of a sucker-rod string
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 2020-01-01
description Sucker-rod pump plant operation is accompanied by inertial and shock loads, affecting the fatigue strength of sucker rods and causing possible accidents. This work proposes the original design of a shock absorber of a sucker-rod string. The peculiarity of the proposed design is the usage of thin plate packages as a bearing elastic element of the shock absorber. This approach to the elastic element’ design provides the shock absorber to be easy to manufacture and operate. Sucker-rod string protection from extra load will increase the sucker-rod pump plant efficiency in general. This study aims at developing shock absorber’s design and studying its most important performance options—strength and rigidity. A mechanical and mathematical model of a shock absorber’s elastic element was developed in order to specify its deformation. A package of thin plates was modelled as an equivalent solid plate with a cylindrical rigidity providing equal properties of the solid model and the plate package. This model makes possible to describe analytically the stress-strain state of the shock absorber bearing elements. The work presents the final expressions of the shock absorber’s strength and rigidity assessing in a convenient form for engineering practice. The numerical approbation of the obtained analytical results was carried out as the case of a plate elastic element. The authors give recommendation on the bearing unit’s design of the shock absorber.
url http://dx.doi.org/10.1155/2020/3292713
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