Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation
A new type of ice core drill bit, designed with a vane swirler, was developed for ice core drilling with air reverse circulation. An orthogonal experimental design method was employed to investigate the effects of the swirler structure parameters on the reverse circulation performance of the drill b...
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Cambridge University Press
2019
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Online Access: | https://doi.org/10.1017/jog.2019.76 https://doaj.org/article/436f9856d1e34bd9b600d0d746ee37da |
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ftdoajarticles:oai:doaj.org/article:436f9856d1e34bd9b600d0d746ee37da 2023-05-15T16:38:37+02:00 Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation Pinlu Cao Qi Zhao Zhuo Chen Hongyu Cao Baoyi Chen 2019-12-01T00:00:00Z https://doi.org/10.1017/jog.2019.76 https://doaj.org/article/436f9856d1e34bd9b600d0d746ee37da EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143019000765/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.76 0022-1430 1727-5652 https://doaj.org/article/436f9856d1e34bd9b600d0d746ee37da Journal of Glaciology, Vol 65, Pp 1011-1022 (2019) Air drilling drill bit ice core drilling orthogonal design reverse circulation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2019.76 2023-03-12T01:30:57Z A new type of ice core drill bit, designed with a vane swirler, was developed for ice core drilling with air reverse circulation. An orthogonal experimental design method was employed to investigate the effects of the swirler structure parameters on the reverse circulation performance of the drill bit including helical angle, number of blades, blade length and blade central angle, etc. The entrainment ratio was used to evaluate the reverse circulation effectiveness of the drill bit. The results show that the helical angle is the dominant factor regardless of whether or not the flushing nozzles are part of the design of the drill bit. The number of blades is the least important factor for the drill bit designed with the flushing nozzles (referred to as drill bit I), while the outlet area of the swirling slot is the least influential factor for the drill bit without flushing nozzles (referred to as drill bit П). In addition, the appearance of the ice core has a certain effect on the air reverse circulation for both drill bits. Within the ranges of this study, the optimal structure of the drill bit was determined based on the range analysis of the orthogonal design. Article in Journal/Newspaper ice core Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 65 254 1011 1022 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Air drilling drill bit ice core drilling orthogonal design reverse circulation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Air drilling drill bit ice core drilling orthogonal design reverse circulation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Pinlu Cao Qi Zhao Zhuo Chen Hongyu Cao Baoyi Chen Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
topic_facet |
Air drilling drill bit ice core drilling orthogonal design reverse circulation Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
A new type of ice core drill bit, designed with a vane swirler, was developed for ice core drilling with air reverse circulation. An orthogonal experimental design method was employed to investigate the effects of the swirler structure parameters on the reverse circulation performance of the drill bit including helical angle, number of blades, blade length and blade central angle, etc. The entrainment ratio was used to evaluate the reverse circulation effectiveness of the drill bit. The results show that the helical angle is the dominant factor regardless of whether or not the flushing nozzles are part of the design of the drill bit. The number of blades is the least important factor for the drill bit designed with the flushing nozzles (referred to as drill bit I), while the outlet area of the swirling slot is the least influential factor for the drill bit without flushing nozzles (referred to as drill bit П). In addition, the appearance of the ice core has a certain effect on the air reverse circulation for both drill bits. Within the ranges of this study, the optimal structure of the drill bit was determined based on the range analysis of the orthogonal design. |
format |
Article in Journal/Newspaper |
author |
Pinlu Cao Qi Zhao Zhuo Chen Hongyu Cao Baoyi Chen |
author_facet |
Pinlu Cao Qi Zhao Zhuo Chen Hongyu Cao Baoyi Chen |
author_sort |
Pinlu Cao |
title |
Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
title_short |
Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
title_full |
Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
title_fullStr |
Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
title_full_unstemmed |
Orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
title_sort |
orthogonal experimental research on the structural parameters of a novel drill bit used for ice core drilling with air reverse circulation |
publisher |
Cambridge University Press |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2019.76 https://doaj.org/article/436f9856d1e34bd9b600d0d746ee37da |
genre |
ice core Journal of Glaciology |
genre_facet |
ice core Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 65, Pp 1011-1022 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143019000765/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.76 0022-1430 1727-5652 https://doaj.org/article/436f9856d1e34bd9b600d0d746ee37da |
op_doi |
https://doi.org/10.1017/jog.2019.76 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
254 |
container_start_page |
1011 |
op_container_end_page |
1022 |
_version_ |
1766028933217648640 |