RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH
To solve the problem that the Houfeng Seismograph’s directional function’s historical record was generally questioned. The analysis concludes that the spherical pendulum seismic measurement scheme may be a feasible restoration scheme with Rayleigh wave（the main component of non-local earthquakes） as...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2022-01-01
|
| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.02.031 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841535922009538560 |
|---|---|
| author | LIU Zhao LIU YuMing XU Hao LI YaMei ZHU YuTian |
| author_facet | LIU Zhao LIU YuMing XU Hao LI YaMei ZHU YuTian |
| author_sort | LIU Zhao |
| collection | DOAJ |
| description | To solve the problem that the Houfeng Seismograph’s directional function’s historical record was generally questioned. The analysis concludes that the spherical pendulum seismic measurement scheme may be a feasible restoration scheme with Rayleigh wave（the main component of non-local earthquakes） as wave source. A nonlinear complete mechanical model of the spherical pendulum under Rayleigh wave excitation is established. The equation of motion was derived. The approximate solution is obtained using the perturbation method. The results show that: the spherical pendulum restoration model has a directional response to Rayleigh waves. The magnitude of the directional response is related to the amplitude of the Rayleigh wave, as well as the frequency ratio and damping of the system. Combined with historical records to study the restoration models of the weather seismograph, the spherical pendulum model is the best restoration model for Zhang Heng’s Hou Feng seismograph in many aspects. This conclusion is an important theoretical basis to prove the historical authenticity of the Houfeng Seismograph. |
| format | Article |
| id | doaj-art-2cb7360feb434417b1d15c8f059e853b |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-2cb7360feb434417b1d15c8f059e853b2025-01-15T02:24:43ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-014448048429911681RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPHLIU ZhaoLIU YuMingXU HaoLI YaMeiZHU YuTianTo solve the problem that the Houfeng Seismograph’s directional function’s historical record was generally questioned. The analysis concludes that the spherical pendulum seismic measurement scheme may be a feasible restoration scheme with Rayleigh wave（the main component of non-local earthquakes） as wave source. A nonlinear complete mechanical model of the spherical pendulum under Rayleigh wave excitation is established. The equation of motion was derived. The approximate solution is obtained using the perturbation method. The results show that: the spherical pendulum restoration model has a directional response to Rayleigh waves. The magnitude of the directional response is related to the amplitude of the Rayleigh wave, as well as the frequency ratio and damping of the system. Combined with historical records to study the restoration models of the weather seismograph, the spherical pendulum model is the best restoration model for Zhang Heng’s Hou Feng seismograph in many aspects. This conclusion is an important theoretical basis to prove the historical authenticity of the Houfeng Seismograph.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.02.031Houfeng seismographRayleigh wavePerturbation methodSpherical Pendulum |
| spellingShingle | LIU Zhao LIU YuMing XU Hao LI YaMei ZHU YuTian RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH Jixie qiangdu Houfeng seismograph Rayleigh wave Perturbation method Spherical Pendulum |
| title | RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH |
| title_full | RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH |
| title_fullStr | RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH |
| title_full_unstemmed | RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH |
| title_short | RESEARCH ON THE DIRECTIVITY RESPONSE OF THE SPHERICAL PENDULUM SEISMOGRAPH |
| title_sort | research on the directivity response of the spherical pendulum seismograph |
| topic | Houfeng seismograph Rayleigh wave Perturbation method Spherical Pendulum |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.02.031 |
| work_keys_str_mv | AT liuzhao researchonthedirectivityresponseofthesphericalpendulumseismograph AT liuyuming researchonthedirectivityresponseofthesphericalpendulumseismograph AT xuhao researchonthedirectivityresponseofthesphericalpendulumseismograph AT liyamei researchonthedirectivityresponseofthesphericalpendulumseismograph AT zhuyutian researchonthedirectivityresponseofthesphericalpendulumseismograph |