Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt
To identify the shock generated sources of shear type explosive bolt, five kinds of explosive bolts with different states, including high preload, low preload, no preload, no piston shear, and only propellant combustion, were designed. The decoupling of four kinds of shock sources, including the col...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/3846236 |
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| _version_ | 1832549311159730176 |
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| author | Yanhua Li Shihui Xiong Yuan Li Xiaogang Li Yuquan Wen Huina Mu Zhiliang Li |
| author_facet | Yanhua Li Shihui Xiong Yuan Li Xiaogang Li Yuquan Wen Huina Mu Zhiliang Li |
| author_sort | Yanhua Li |
| collection | DOAJ |
| description | To identify the shock generated sources of shear type explosive bolt, five kinds of explosive bolts with different states, including high preload, low preload, no preload, no piston shear, and only propellant combustion, were designed. The decoupling of four kinds of shock sources, including the collision of propellant combustion, piston shear weak surface, end of piston stroke, and preload release, was realized. Their acceleration responses at 15 cm from the shock source center on 60 cm × 60 cm × 1 cm equivalent aluminum plate were measured by using the piezoresistive accelerometer. On this account, the relative contribution values along with frequency and the mean relative values without regard to frequency of various sources were calculated in high and low preload. Results show that the characteristics of different shock sources are different, and the shock induced by propellant combustion is mainly caused by high frequency, while piston shear and piston impact are concentrated in medium and low frequency. In the high preload condition, the preload release is major contributor to the overall shock response output, accounting for approximately 57.51%, while the contributions of the three shock sources of propellant combustion, piston shear, and piston impact are equivalent, but they are significant contributors in the low preload condition. This study provides design reference to reduce the pyrotechnic shock of shear type explosive bolt. |
| format | Article |
| id | doaj-art-7ae8832c0de842168c4dd23bb104d557 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7ae8832c0de842168c4dd23bb104d5572025-02-03T06:11:34ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/38462363846236Identification of Pyrotechnic Shock Sources for Shear Type Explosive BoltYanhua Li0Shihui Xiong1Yuan Li2Xiaogang Li3Yuquan Wen4Huina Mu5Zhiliang Li6State Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaCNGC Xi’an Qinghua, North Special Energy Group Co. Ltd., Xi’an 710025, ChinaTo identify the shock generated sources of shear type explosive bolt, five kinds of explosive bolts with different states, including high preload, low preload, no preload, no piston shear, and only propellant combustion, were designed. The decoupling of four kinds of shock sources, including the collision of propellant combustion, piston shear weak surface, end of piston stroke, and preload release, was realized. Their acceleration responses at 15 cm from the shock source center on 60 cm × 60 cm × 1 cm equivalent aluminum plate were measured by using the piezoresistive accelerometer. On this account, the relative contribution values along with frequency and the mean relative values without regard to frequency of various sources were calculated in high and low preload. Results show that the characteristics of different shock sources are different, and the shock induced by propellant combustion is mainly caused by high frequency, while piston shear and piston impact are concentrated in medium and low frequency. In the high preload condition, the preload release is major contributor to the overall shock response output, accounting for approximately 57.51%, while the contributions of the three shock sources of propellant combustion, piston shear, and piston impact are equivalent, but they are significant contributors in the low preload condition. This study provides design reference to reduce the pyrotechnic shock of shear type explosive bolt.http://dx.doi.org/10.1155/2017/3846236 |
| spellingShingle | Yanhua Li Shihui Xiong Yuan Li Xiaogang Li Yuquan Wen Huina Mu Zhiliang Li Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt Shock and Vibration |
| title | Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt |
| title_full | Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt |
| title_fullStr | Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt |
| title_full_unstemmed | Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt |
| title_short | Identification of Pyrotechnic Shock Sources for Shear Type Explosive Bolt |
| title_sort | identification of pyrotechnic shock sources for shear type explosive bolt |
| url | http://dx.doi.org/10.1155/2017/3846236 |
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