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本书以结构工程和地震工程作为应用背景,清晰而深入地介绍了工程波动理论。全书分为上、下两篇,上篇着重于基础知识,讨论了波动的数学物理特征、波谱的分析与综合及结构的动力响应;下篇讨论了波源或散射源邻域内波动的数值模拟问题,包括人工边界条件、离散网格中的波动及近场波动数值模拟的精度和稳定性,并系统地介绍了有关应用研究。 这是一本颇有特色的专著。首先,本书恰当地协调了物理概念明晰、数学处理严谨和工程实用性三个不同侧面,使之配置均衡、相辅相成。作者通过对数学上比较简单的一维问题的分析,生动地解释了波动现象的物理性质。对于涉及复杂数学概念或方法的问题,则在保持严谨性的基础上,力求阐明其物理内涵。另一方面,作者有着解决工程应用问题的丰富经验,使得本书在理论与实践结合方面基础坚实,脉络分明,不乏精彩的见解。其次,计算机时代的到来对于科学的发展和生产的影响如此巨大,以致今天还难以估计其影响的最终规模与深度。毋庸置疑,工程基础理论的发展也会因之带有深刻的时代痕迹。一本优秀的科技专
This book uses structural engineering and seismic engineering as the application background, clearly and deeply introduces the theory of engineering fluctuation. The book is divided into two parts, the first two focuses on the basics, discusses the fluctuations of mathematical physics, spectrum analysis and synthesis and dynamic response of the structure; the next article discusses the wave source or scattering source neighborhood fluctuations in the numerical simulation problem Including the artificial boundary conditions, the accuracy and stability of the numerical simulation of the fluctuations in the discrete grid and near-field fluctuations, and systematically introduces the application research. This is a very special monograph. First of all, the book properly coordinates three distinct aspects of a clear physical concept, rigorous mathematical processing, and practical engineering to make it well-balanced and complementary. By analyzing the relatively simple one-dimensional problem in mathematics, the author vividly explains the physical properties of the fluctuations. For issues that involve complex mathematical concepts or methods, they strive to clarify their physical connotations, while maintaining their rigor. On the other hand, the author has a wealth of experience in solving engineering application problems, making the book a solid, clear-cut and clear-cut vision in combining theory with practice. Second, the advent of the computer age has had so great an impact on the development and production of science that today it is difficult to estimate the final scale and depth of its influence. Undoubtedly, the development of engineering basic theory will be accompanied by profound traces of the times. A good science and technology