| 固体介质中非线性波的能量初探 |
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| 引用本文： | 王兆国,秦树洪,颜军.固体介质中非线性波的能量初探[J].地球物理学进展,2007,22(1):192-199. |
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| 作者姓名： | 王兆国 秦树洪 颜军 |
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| 作者单位： | 吉林大学 地球探测科学与技术学院,长春 130026 |
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| 摘 要： | 本文从能源问题与勘探问题的密切关系出发，提出进行深入的非线性波研究的必要性——进一步提供可靠而详实的地质资料，以解决实际地质问题.说明了非线性科学与非线性波动的关系和特点，非线性波动是非线性科学的一个重要的分支，而地球本身的特点也决定了非线性科学是解决地质问题的重要基础.回顾了波动理论的研究历程及当今国内外非线性研究的进展情况.通过上述认识，提出了非线性波动问题中能量的重要性，然后分别从震源与冲击波的形成，界面处的能量分配，介质中能量的衰减，波的相互作用四个方面讨论了非线性波的能量问题.通过对能量问题的讨论，进一步讨论了影响非线性波能量的因素.从能量的角度出发，探讨了以后进行固体中非线性波研究的重点.最后对非线性波在地学应用中的可能性进行了探讨.
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| 关 键 词： | 非线性科学 非线性波动 冲击波 三阶弹性能 地学 |
| 文章编号： | 1004-2903（2007）01-0192-08 |
| 收稿时间： | 2006-07-10 |
| 修稿时间： | 2006-10-20 |
A study on energy of nonlinear wave in solid media |
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| WANG Zhao-guo,QIN Shu-hong,YAN Jun.A study on energy of nonlinear wave in solid media[J].Progress in Geophysics,2007,22(1):192-199. |
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| Authors: | WANG Zhao-guo QIN Shu-hong YAN Jun |
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| Institution: | College of Geoexploration Science And Technology, Jilin University, Chang chun 130026, China |
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| Abstract: | Proceeding from the relationship between energy and exploration,the paper proposes the necessity to make a further study on nonlinear wave;meanwhile more reliable geological materials are provided to solve the practical problems.The paper introduces the relationship between nonlinear science and nonlinear wave-motion theory,that is,nonlinear wave-motion theory is an important branch of nonlinear science,while nonlinear science is the key point to solve many geological problems,which is determined by the features of the Earth itself;moreover,the research of wave-motion theory and current study on nonlinear science,at home and abroad,are reviewed.Based on those above,the paper discusses the importance of energy in solving nonlinear wave-motion problems,which is processed from four aspects: formation of hypocenter and shock wave,energy distribution on the interface,energy attenuation in the media,and interact among waves.Based on the former discussion,the paper poses the factors which influence the energy of nonlinear wave,and clarifies the focus of the further study on nonlinear waves in solid media.At last,the paper makes a further discussion on the possibility to apply nonlinear wave to the geosciences. |
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| Keywords: | Nonlinear science nonlinear wave-motion shock wave three-order elastic energy resilience geosciences |
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