电磁式可控震源-大地耦合过程中的非线性特征分析
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摘要
基于液压式可控震源的线性模型在电磁式可控震源的应用上已不再适合,故电磁式可控震源-大地耦合模型研究对实现有限激励能量向大地的最佳传输至关重要.由于可控震源基板中含有大量高频谐波,在耦合模型中引入非线性恢复力,并通过用多尺度法对系统进行了非线性振动分析.对振动过程中的超谐共振现象为能量传输过程中谐波的产生给出了合理的解释,并为可控震源地震勘探中互相关参考信号的选取提出了改进方案,通过野外实验,取得了良好的应用效果.
引文
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15褚亦清,李翠英.非线性振动分析.北京:北京理工大学出版社,1996.752~795
16曹树谦,张文德,萧龙翔.振动结构模态分析.天津:天津大学出版社.2001.50~77
17刘延柱,陈立群.非线性振动.北京:高等教育出版社,2001.83~95
18Zubin C,Jun L.Design for vibrator field experiment based-on Vi-brator-Earth system.Jounrnal of Geoscience Research in North-east Asia,2000,3(1):107~113
19李庆忠.走向精确的勘探道路-高分辨率地震勘探系统工程剖析.北京:石油工业出版社,1994.15~46
2Ghose R,Nijhof V,Brouwer J,et al.Shallow to very shallow,high-resolution reflection seismic using a portable vibrator system.Geophysics,1998,63(4):1295~1309
3Sherif R E,Geldart L P.勘探地震学.北京:石油工业出版社,1999.265~269
4Edelmann H A K,Werner H.Combined sweep signals for correla-tion noise suppression.Geophysical Prospecting,1982,30(6):786~812
5Joseph K S.Techniques for improving vibroseis data.Geophysics,1987,52(4):469~482
6陈祖斌,林君,于生宝,等.轻便浅层地震可控震源的研制.仪器仪表学报,2003,24(3):311~314
7Tan T H.The elastodynamic field of N interacting vibrators(two-dimensional theory).Geophysics,1985,50(8):1229~1252
8Peacock S,Crampin S.Shear-wave vibrator signals in trans-versely isotropic shale.Geophysics,1985,50(8):1285~1293
9Gurbuz B M.Signal enhancement of vibratory source data in the presence of attenuation.Geophysical Prospecting,1972,20(3):421~438
10Gurbuz B M.Upsweep signals with High frequency attenuation and their use in the construction of vibroseis synthetic seismo-grams.Geophysical Prospecting,1982,30(3):432~443
11Walker D.Harmonic resonance structure and chaotic dynamics in the Earth-Vibrator system.Geophysical Prospecting,1995,43(4):487~507
12Rietsch E.Reduction of harmonic distortion in vibratory sourcerecords.Geophysical Prospecting,1981,29(2):178~188
13林君,陈祖斌.可控震源-大地耦合模型研究.中国学术期刊文摘,1999,5(6):811~812
14盛昭瀚,马军海.非线性动力系统分析引论.北京:科学出版社,2001.111~115
15褚亦清,李翠英.非线性振动分析.北京:北京理工大学出版社,1996.752~795
16曹树谦,张文德,萧龙翔.振动结构模态分析.天津:天津大学出版社.2001.50~77
17刘延柱,陈立群.非线性振动.北京:高等教育出版社,2001.83~95
18Zubin C,Jun L.Design for vibrator field experiment based-on Vi-brator-Earth system.Jounrnal of Geoscience Research in North-east Asia,2000,3(1):107~113
19李庆忠.走向精确的勘探道路-高分辨率地震勘探系统工程剖析.北京:石油工业出版社,1994.15~46
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