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中文核心期刊

践行工程科学思想的体会工程科学是技术创新与人类认识的源泉

THE EXPERIENCE OF PRACTICING THE THOUGHT OF ENGINEERING SCIENCEENGINEERING SCIENCE IS THE SOURCE OF TECHNOLOGICAL INNOVATION AND HUMAN UNDERSTANDING

  • 摘要: 郑哲敏先生一生积极践行和倡导钱学森先生的工程科学思想, 传承和发扬工程科学思想对推动我国技术创新有十分重要的现实意义. 本文首先阐述了工程科学的定义、方法论和特点, 强调了提出新的解决方案是工程科学的核心内容以及工程科学家对技术创新的作用. 其次通过分析水下爆炸处理地基、三峡围堰相关技术等工程案例, 诠释了工程科学在技术创新中的作用; 讨论了工程计算与数值模拟的理论基础及工程科学属性, 选取广义计算变量、构建解的结构是数值模拟中创造性的工作; 连续非连续计算方法的核心在于构建了计算过程中时域内可增减的广义计算变量, 列举了几个体现工程科学方法论的计算案例; 介绍了滑坡灾害防治关键力学问题研究中践行工程科学思想的工作, 讨论了监测与数值模拟相结合的可行性及渐进破坏和破裂度概念. 最后基于开发高压卸荷矿石粉化技术的认知提出了岩石物理学发展的几个工程科学研究方向.

     

    Abstract: Mr. Che-Min Cheng had been actively practicing and advocating Mr. Hsue-Shen Tsien’s engineering science thought throughout his life. He himself had also inherited and carried forward engineering science, which is of great practical significance to the promotion of technological innovation in China. Firstly, this paper expounds the definition, methodology and characteristics of engineering science, emphasizing that proposing new solutions is the core content of engineering science and addressing the role of engineering scientists in technological innovation. Secondly, the paper interprets the role of engineering science in technological innovation by analyzing several engineering cases, e.g. the use of explosion methods to deal with underwater foundations, the related techniques in the construction of the Three Gorges coffer. The paper clarifies the theoretical basis and engineering science nature of numerical simulation, in which how to select generalized variables and construct the structure of the solutions is the extremely creative work. The core of the continuous discontinuous simulation method is to construct mutable generalized variables in time domain. Several simulation cases that embody engineering science methodology are listed. The paper also introduces how to systematically practice the methodology of engineering science in the study of key mechanical problems in landslide disaster prevention, expounds the uniqueness of inversion and the feasibility of combining monitoring and numerical simulation, and gives the concept of progressive failure and rupture degree. Finally, based on the cognition of developing high-pressure unloading ore pulverization technology, the paper proposes several engineering scientific research directions for the development of rock physics.

     

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