Nanotechnology Part 1: Nanomechanics And Algodoo Simulator

使用类比理解纳米技术：宏观物理模拟器和纳米级封底计算

已发布 12/2022
MP4 | 视频：h264、1280×720 | 音频：AAC，44.1 KHz
语言：英语 | 大小：1.06 GB | 时长：3 小时 22 米

你会学到什么

• 为机械、物理对象和交互建模
• 比较纳米机器的特性与宏观类比
• 空气中颗粒物的计算和建模
• 流体在非常低的雷诺数下通过纳米通道运动
• 布朗和机械混合器
• 纳米汽车的原子预估滑行距离
• 自由、阻尼和受迫振荡：球弹簧系统
• 基于共振频移的纳米机械质量传感器
• Q 因子和光束计算
• 机械化学系统
• 原子键、声子和机器人

要求
Algodoo
基础知识 纳米技术基础

描述

人类大脑在思考纳米尺度时会产生类比。然而，人类对“纳米世界”中过程、力和相互作用的直觉往往是错误的。纳米技术是对尺寸小于 100 纳米的材料和设备的研究和应用（有时对更大的纳米结构感兴趣）。纳米技术是一门高度跨学科的科学，可以从力学、光子学、化学、物理学、生物学、材料科学和工程学的角度进行学习。纳米材料导致无数产品的改进和新的量子、化学、电学、光学和机械特性的发现。然而，尺寸堪比原子团的纳米粒子、材料、器件和机器，用肉眼甚至光学显微镜都无法看到。

在模拟的“真实世界”中，人们可以搭建、玩耍并让自己的发明栩栩如生。在Algodoo中，可以构建交互模型（点击、拖动、倾斜、摇动），探索和玩转刚体、流体、链条、齿轮、重力、摩擦力、弹簧、铰链等，进行模拟实验。[Algodoo 是 Algoryx Simulation AB 的模拟器，是流行程序 Phun 的继承者：它模拟基于牛顿定律的机械系统]。

请注意：Algodoo 不是为了模拟纳米技术而创建的。Algodoo 中的时间尺度默认为 16.666 毫秒或 1/60 秒（60 赫兹）。因此，在更短的时间步长内解决亚厘米物理问题具有挑战性。在本课程中，Algodoo 用于增强过程、设备和机器的可视化（假设在纳米尺度上存在相似或可比较的机器）。模拟后，使用封底计算来估计数量级，并更好地理解与宏观类比相比，缩放如何影响纳米系统的行为。

Understanding nanotechnology using analogies: macroscale physics simulator and nanoscale back-of-envelope calculationss

Published 12/2022
MP4 | Video: h264, 1280×720 | Audio: AAC, 44.1 KHz
Language: English | Size: 1.06 GB | Duration: 3h 22m

What you’ll learn

• Model mechanical, physical objects and interactions
• Compare properties of nanomachines in comparision to macroscopic analogies
• Calculation and modelling of particulates in the air
• Fluid motion through nano-channel at a very low Reynolds Number
• Brownian and mechanical mixer
• Atomically Presize Coasting Distance of a Nanocar
• Free, damped and forced oscillation: ball-spring system
• Nanomechanical mass sensor based on resonant fequency shift
• Q factor and beam calculation
• Mechano-chemical systems
• Atomic bonds, phonons and robots

Requirements
Basic knowledge of Algodoo
Fundamentals of nanotechnology

Description

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.

Overview
Section 1: Introduction

Lecture 1 Introduction

Section 2: Lecture 2

Lecture 2 Information about Algodoo and nanotechnology

Section 3: Examples: Simulations and Nanosystems

Lecture 3 Basic definition

Lecture 4 Algodoo: particulates in the air

Lecture 5 Algodoo: particle sedimentation in the liquid

Lecture 6 Algodoo: fluid motion through nano-channel at a very low Reynolds Number

Lecture 7 Algodoo: Brownian and mechanical mixers

Section 4: Nanomachines

Lecture 8 Nanomachines

Lecture 9 Algodoo: atomically presize coasting distance of a nanocar

Section 5: Free oscillatioins

Lecture 10 Free oscillations: energy and probability

Lecture 11 Free oscillators

Section 6: Dampled oscillations

Lecture 12 Damped oscillations

Section 7: Forced oscillations

Lecture 13 Forced oscillations

Section 8: Nanomechanical mass sensors

Lecture 14 Nanomechanical mass sensor

Lecture 15 Q factor and beam calculation

Section 9: Mechano-chemical systems

Lecture 16 Mechano-chemistry

Section 10: Vibrating atomic bonds

Lecture 17 Schroedinger equation and correspondence principle

Lecture 18 Atoms

Lecture 19 Atomic bonds frequencies

Lecture 20 Quantum mechanics of oscillating atoms

Lecture 21 Algodoo: planetary atom model

Section 11: Phonons

Lecture 22 Phonons: theory

Lecture 23 Phonons in crystal

Lecture 24 Phononic robot

Section 12: Summary

Lecture 25 Nanomechanics summary

Students, engineers and scientists interested to learn more about nanotechnology,This course is for those interested to learn what is the difference between macroscropic and nanoscale analogies