Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory

Fatigue fracture is the main failure form of mining drill pipe joints, which directly leads to the occurrence of drill pipe drop accidents. Based on the principle of engineering bionics, the spine structure and kinematic behavior characteristics of cheetah were studied; the bionic design and trial p...

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Main Authors: Chuanliu Wang, Pei Ju
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/9661388
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author Chuanliu Wang
Pei Ju
author_facet Chuanliu Wang
Pei Ju
author_sort Chuanliu Wang
collection DOAJ
description Fatigue fracture is the main failure form of mining drill pipe joints, which directly leads to the occurrence of drill pipe drop accidents. Based on the principle of engineering bionics, the spine structure and kinematic behavior characteristics of cheetah were studied; the bionic design and trial production of drill pipe joints were carried out. For the bionic drill pipe joint, it separates the torsion transmission function from the connection function, and when the torsion transmission function of the joint fails, the connection function is still effective, so as to achieve the effect of “breaking the bones and connecting the ribs.” The mechanical and flow field properties of the bionic drill pipe joint were analyzed. Mechanical test results showed that, for the bionic drill pipe joint, the average tensile capacity was 555.48 kN and the average torsion capacity was 8914.13 N·m, which met the mechanical performance requirements. The flow field numerical simulation results showed that, when the drilling fluid velocity field and pressure field were stable and change evenly, there is no risk of leakage. The study results can provide a new research idea for the research and development of mine drill pipe joint with long life and antidropping function.
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institution Kabale University
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spelling doaj-art-335a52a960384eec8307326f582ea8d12025-02-03T01:24:42ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/96613889661388Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic TheoryChuanliu Wang0Pei Ju1Xi’an Research Institute of China Coal Research Institute, Xi’an 710077, ChinaXi’an Research Institute of China Coal Research Institute, Xi’an 710077, ChinaFatigue fracture is the main failure form of mining drill pipe joints, which directly leads to the occurrence of drill pipe drop accidents. Based on the principle of engineering bionics, the spine structure and kinematic behavior characteristics of cheetah were studied; the bionic design and trial production of drill pipe joints were carried out. For the bionic drill pipe joint, it separates the torsion transmission function from the connection function, and when the torsion transmission function of the joint fails, the connection function is still effective, so as to achieve the effect of “breaking the bones and connecting the ribs.” The mechanical and flow field properties of the bionic drill pipe joint were analyzed. Mechanical test results showed that, for the bionic drill pipe joint, the average tensile capacity was 555.48 kN and the average torsion capacity was 8914.13 N·m, which met the mechanical performance requirements. The flow field numerical simulation results showed that, when the drilling fluid velocity field and pressure field were stable and change evenly, there is no risk of leakage. The study results can provide a new research idea for the research and development of mine drill pipe joint with long life and antidropping function.http://dx.doi.org/10.1155/2021/9661388
spellingShingle Chuanliu Wang
Pei Ju
Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
Geofluids
title Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
title_full Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
title_fullStr Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
title_full_unstemmed Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
title_short Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
title_sort design and performance research of flexible drill pipe joint based on bionic theory
url http://dx.doi.org/10.1155/2021/9661388
work_keys_str_mv AT chuanliuwang designandperformanceresearchofflexibledrillpipejointbasedonbionictheory
AT peiju designandperformanceresearchofflexibledrillpipejointbasedonbionictheory