Analytical Study of Operational Properties of a Plate Shock Absorber of a Sucker-Rod String
| Autor: | Liubomyr Ropyak, Ivan Petryk, Andrii Velychkovych |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Article Subject QC1-999 020209 energy Rigidity (psychology) 02 engineering and technology Rod law.invention 0203 mechanical engineering law 0202 electrical engineering electronic engineering information engineering Civil and Structural Engineering Bearing (mechanical) business.industry Physics Mechanical Engineering Structural engineering Geotechnical Engineering and Engineering Geology Condensed Matter Physics Fatigue limit Shock (mechanics) Shock absorber 020303 mechanical engineering & transports Mechanics of Materials Sucker rod Deformation (engineering) business |
| Zdroj: | Shock and Vibration, Vol 2020 (2020) |
| ISSN: | 1875-9203 1070-9622 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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