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所在平台: Udemy |
课程主页: https://www.udemy.com/course/nanotechnology-part-1-nanomechanics-and-algodoo-simulator/
课程评论：没有评论
课程名称：纳米技术第一部分：纳米力学与Algodoo模拟器 课程概述：人类在思考纳米尺度时常常建立类比，但对“纳米世界”中的过程、力和相互作用的直觉常常是错误的。纳米技术是涉及小于100纳米的材料和设备的研究与应用，是一门高度跨学科的科学，涵盖力学、光子学、化学、物理、生物学、材料科学和工程等多个视角。纳米材料能够提升众多产品的性能，并发现新的量子、化学、电气、光学和机械特性。然而，纳米粒子、材料、设备和与原子簇尺寸相当的机器在肉眼和光学显微镜下无法观察到。因此，学习纳米技术具有一定挑战性，因为想象微小物体在微小世界中的行为是复杂的。 在模拟的“现实世界”中，用户可以构建、玩耍并使自己的发明活灵活现。在Algodoo中，用户可以通过点击、拖动、倾斜和摇动等方式构建互动模型，探索和实验刚体、流体、链条、齿轮、重力、摩擦、弹簧、铰链等。Algodoo是由Algoryx Simulation AB开发的模拟器，基于牛顿定律模拟机械系统。尽管Algodoo并非专门用于模拟纳米技术，但它有助于增强对过程、设备和机器的可视化理解（假设在纳米尺度上存在类似的或可比的机器）。在模拟后，使用近似计算来估算数量级，更好地理解尺度对纳米系统行为的影响，以及与宏观类比的比较。 本课程通过结合模拟和计算，帮助学习者深入理解纳米技术的基本概念与应用。
Human brains create analogies when thinking about the nanoscale. However, human intuition about processes, forces, and interactions in the "nano-world" is often wrong. Nanotechnology is the research and application of materials and devices with dimensions below 100 nm (sometimes larger nanostructures are of interest). Nanotechnology is a highly interdisciplinary science that can be learned from mechanics, photonics, chemistry, physics, biology, materials science, and engineering perspectives. Nanomaterials lead to improvement of myriad of products and discovery of novel quantum, chemical, electrical, optical, and mechanical properties. However, nano- particles, materials, devices, and machines with sizes comparable to atomic clusters are impossible to see with the naked eye and even in optical microscopes. It is challenging to learn nanotechnology because it is complicated to imagine the behaviors of small things in a tiny world. In a simulated "real world", one can build, play, and make own inventions come alive. In Algodoo, one can construct interactive models (by clicking, dragging, tilting, and shaking), explore and play with rigid bodies, fluids, chains, gears, gravity, friction, springs, hinges, etc., in engaging simulated experiments. [Algodoo is a simulator from Algoryx Simulation AB as the successor to the popular program Phun: it simulates mechanical systems based on Newton's laws]. Please note: Algodoo was not created to simulate nanotechnology. The time scale in Algodoo is, by default, 16.666 ms or 1/60 second (60 Hz). For this reason, resolving sub-cm physics in a shorter time-step is challenging. In this course, Algodoo is used to enhance the visualization of processes, devices, and machines (it is assumed that similar or comparable machines exist at the nanoscale). After simulations, back-of-envelope calculations are used to estimate orders of magnitudes and better understand how scaling influences behaviors of nanosystems in comparison to macroscopic analogies.
