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振动和波浪

Vibrations and Waves
课程网址: https://openlearninglibrary.mit.edu/courses/course-v1:MITx+8.03x+...  
主讲教师: Yen-Jie Lee; Alex Shvonski; Michelle Tomasik
开课单位: 麻省理工学院
开课时间: 2021-01-01
课程语种: 英语
中文简介:
波浪和振动的基础研究将为学习者准备物理和工程相关领域的高级课程。分析这些现象的技巧适用于许多不同的系统,因为振动和波是如此普遍。例如,学习者将了解高层建筑的“共振”模式如何类似于耦合振荡器的简单系统。此外,学习者将认识到,“共振”的概念不仅适用于弹簧上的质量系统,还适用于声波、二维表面、原子和其他广泛的系统。本课程探讨了所有波浪系统以及许多特殊情况下通用的许多特性。 本课程将帮助学员分析涉及机械振动和波的问题,主题包括简谐运动、叠加、阻尼、强迫振动和共振、耦合振动、正常模式、连续系统、反射和折射以及相位和群速度。本课程还探讨电磁波和各种相关特性,如极化、斯内尔定律、惠更斯原理、干涉和衍射。最后,让学习者体验量子力学。
课程简介: A foundational study of waves and vibrations will prepare learners for advanced courses in physics and related fields of engineering. The skills utilized in analyzing these phenomena are applicable to many different systems because vibrations and waves are so ubiquitous. For instance, learners will understand how the “resonant” modes of a tall building are analogous to simple systems of coupled oscillators. Moreover, learners will come to appreciate that the concept of “resonance” applies not only to systems of masses on springs, but to sound waves, 2D surfaces, atoms, and a wide range of other systems. This course explores many properties that are universal to all wave systems as well as many particular cases. This course will prepare learners to analyze problems that involve mechanical vibrations and waves with such topics as simple harmonic motion, superposition, damping, forced vibrations and resonance, coupled oscillations, normal modes, continuous systems, reflection and refraction, and phase and group velocities. The course also explores electromagnetic waves and various associated properties like polarization, Snell’s law, Huygens’s principle, interference and diffraction. It ends by giving learners a taste of Quantum Mechanics.
关 键 词: 波浪和振动; “共振”模式; 机械
课程来源: 麻省理工学院公开课
数据采集: 2021-10-12:nkq
最后编审: 2021-10-12:nkq
阅读次数: 50