Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance

In view of the stick-slip phenomenon in deep and hard rock drilling, a new type of torsional impactor that can provide torsional impact vibration was designed. According to the working principle and structural characteristics of the designed torsional impactor, this paper theoretically analyzes the...

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Autores principales:	Xianfeng Tan, Zongtao Chen, Songcheng Tan, Longchen Duan, Chao Xu, Yonggang Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	drilling torsion impactor structural design performance analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/ccc1275769fb4e5398d20f2b25d345bc
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spelling	oai:doaj.org-article:ccc1275769fb4e5398d20f2b25d345bc2021-11-25T16:43:11ZDesign of a New Type of Torsional Impactor and Analysis of Its Impact Performance10.3390/app1122110372076-3417https://doaj.org/article/ccc1275769fb4e5398d20f2b25d345bc2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/11037https://doaj.org/toc/2076-3417In view of the stick-slip phenomenon in deep and hard rock drilling, a new type of torsional impactor that can provide torsional impact vibration was designed. According to the working principle and structural characteristics of the designed torsional impactor, this paper theoretically analyzes the influences of different structural parameters and motion parameters on the impact frequency, impact force, and impact torque of the torsional impactor. The results show that the impact frequency <i>f</i> is directly proportional to the rotational speed <i>V<sub>Z</sub></i> of the transmission shaft and the installed number <i>n</i> of torsional impact generating devices. Additionally, the impact force <i>F</i> is directly proportional to sine value of the impact angle <i>α</i> (i.e., sin<i>α</i>), impact hammer mass <i>m</i>, impact hammer rotation speed <i>V<sub>Z</sub></i> (i.e., transmission shaft rotation speed), and impact hammer rotation radius <i>r</i> and is inversely proportional to action time Δ<i>t</i> of the impact hammer and impact anvil. Furthermore, the impact torque <i>M</i> is directly proportional to the impact force <i>F</i> and rotary radius <i>r</i> of the impact hammer. This article lays a foundation for further theoretical and experimental research of torsional impactors and provides a reference for the design and testing of torsional impactors.Xianfeng TanZongtao ChenSongcheng TanLongchen DuanChao XuYonggang WangMDPI AGarticledrillingtorsion impactorstructural designperformance analysisTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 11037, p 11037 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	drilling torsion impactor structural design performance analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	drilling torsion impactor structural design performance analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Xianfeng Tan Zongtao Chen Songcheng Tan Longchen Duan Chao Xu Yonggang Wang Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
description	In view of the stick-slip phenomenon in deep and hard rock drilling, a new type of torsional impactor that can provide torsional impact vibration was designed. According to the working principle and structural characteristics of the designed torsional impactor, this paper theoretically analyzes the influences of different structural parameters and motion parameters on the impact frequency, impact force, and impact torque of the torsional impactor. The results show that the impact frequency <i>f</i> is directly proportional to the rotational speed <i>V<sub>Z</sub></i> of the transmission shaft and the installed number <i>n</i> of torsional impact generating devices. Additionally, the impact force <i>F</i> is directly proportional to sine value of the impact angle <i>α</i> (i.e., sin<i>α</i>), impact hammer mass <i>m</i>, impact hammer rotation speed <i>V<sub>Z</sub></i> (i.e., transmission shaft rotation speed), and impact hammer rotation radius <i>r</i> and is inversely proportional to action time Δ<i>t</i> of the impact hammer and impact anvil. Furthermore, the impact torque <i>M</i> is directly proportional to the impact force <i>F</i> and rotary radius <i>r</i> of the impact hammer. This article lays a foundation for further theoretical and experimental research of torsional impactors and provides a reference for the design and testing of torsional impactors.
format	article
author	Xianfeng Tan Zongtao Chen Songcheng Tan Longchen Duan Chao Xu Yonggang Wang
author_facet	Xianfeng Tan Zongtao Chen Songcheng Tan Longchen Duan Chao Xu Yonggang Wang
author_sort	Xianfeng Tan
title	Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
title_short	Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
title_full	Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
title_fullStr	Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
title_full_unstemmed	Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance
title_sort	design of a new type of torsional impactor and analysis of its impact performance
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ccc1275769fb4e5398d20f2b25d345bc
work_keys_str_mv	AT xianfengtan designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance AT zongtaochen designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance AT songchengtan designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance AT longchenduan designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance AT chaoxu designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance AT yonggangwang designofanewtypeoftorsionalimpactorandanalysisofitsimpactperformance
_version_	1718413043972440064

Design of a New Type of Torsional Impactor and Analysis of Its Impact Performance

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