Research on the Resonance Characteristics of Rock under Harmonic Excitation
In order to study the resonance characteristics of rock under harmonic excitation, two vibration models have been presented to estimate the natural frequency of rock encountered during the drilling. The first one is a developed single-DOF model which considers the properties and dimensions of the ro...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/6326510 |
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| _version_ | 1832545582596489216 |
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| author | Siqi Li Shenglei Tian Wei Li Tie Yan Fuqing Bi |
| author_facet | Siqi Li Shenglei Tian Wei Li Tie Yan Fuqing Bi |
| author_sort | Siqi Li |
| collection | DOAJ |
| description | In order to study the resonance characteristics of rock under harmonic excitation, two vibration models have been presented to estimate the natural frequency of rock encountered during the drilling. The first one is a developed single-DOF model which considers the properties and dimensions of the rock. The second one is a multi-DOF model based on the principle of least action. Subsequently, the modal characteristics, as well as the influence of excitation frequency, the mechanical properties, and dimensions of the rock on its resonance frequency, are analyzed by using FEM. Finally, the ultrasonic test on artificial sandstones and materials of drill tools are carried out indoor, and the FFT transform method is adopted to obtain their resonance frequencies. Based on the analysis undertaken, it can be concluded that the natural frequency of the rock increases with the change of vibration mode. For the same kind of rock, the resonance frequency is inversely proportional to mass, while for the different kinds of rocks, the mechanical parameters, such as density, elastic modulus, and Poisson’s ratio, determine the resonance frequency of the rock together. Besides, the shape of the rock is also one of the main factors affecting its resonance frequency. At last, the theoretical research results are further verified by ultrasonic tests. |
| format | Article |
| id | doaj-art-78cdd77d8c4046a78cee17938b0df1d4 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-78cdd77d8c4046a78cee17938b0df1d42025-02-03T07:25:24ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/63265106326510Research on the Resonance Characteristics of Rock under Harmonic ExcitationSiqi Li0Shenglei Tian1Wei Li2Tie Yan3Fuqing Bi4Institute of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, ChinaInstitute of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, ChinaInstitute of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, ChinaInstitute of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, ChinaThe Fifth Oil Production Plant of Daqing Oilfield, Daqing 163513, Heilongjiang, ChinaIn order to study the resonance characteristics of rock under harmonic excitation, two vibration models have been presented to estimate the natural frequency of rock encountered during the drilling. The first one is a developed single-DOF model which considers the properties and dimensions of the rock. The second one is a multi-DOF model based on the principle of least action. Subsequently, the modal characteristics, as well as the influence of excitation frequency, the mechanical properties, and dimensions of the rock on its resonance frequency, are analyzed by using FEM. Finally, the ultrasonic test on artificial sandstones and materials of drill tools are carried out indoor, and the FFT transform method is adopted to obtain their resonance frequencies. Based on the analysis undertaken, it can be concluded that the natural frequency of the rock increases with the change of vibration mode. For the same kind of rock, the resonance frequency is inversely proportional to mass, while for the different kinds of rocks, the mechanical parameters, such as density, elastic modulus, and Poisson’s ratio, determine the resonance frequency of the rock together. Besides, the shape of the rock is also one of the main factors affecting its resonance frequency. At last, the theoretical research results are further verified by ultrasonic tests.http://dx.doi.org/10.1155/2019/6326510 |
| spellingShingle | Siqi Li Shenglei Tian Wei Li Tie Yan Fuqing Bi Research on the Resonance Characteristics of Rock under Harmonic Excitation Shock and Vibration |
| title | Research on the Resonance Characteristics of Rock under Harmonic Excitation |
| title_full | Research on the Resonance Characteristics of Rock under Harmonic Excitation |
| title_fullStr | Research on the Resonance Characteristics of Rock under Harmonic Excitation |
| title_full_unstemmed | Research on the Resonance Characteristics of Rock under Harmonic Excitation |
| title_short | Research on the Resonance Characteristics of Rock under Harmonic Excitation |
| title_sort | research on the resonance characteristics of rock under harmonic excitation |
| url | http://dx.doi.org/10.1155/2019/6326510 |
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