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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/basis-flight-mechanics
课程评论：没有评论
课程名称：飞行动力学基础 课程概述：本课程旨在帮助学习者理解飞行的基本原理，尽管距怀特兄弟首次飞行已有一个多世纪，飞行仍然超出我们的直觉。您将学习如何命名飞机的不同部件，以及如何描述和量化其几何形状。课程将分享精确的术语以描述飞机在空间中的运动和姿态，同时回顾基本的力学原理。您将了解到牛顿第二定律如何帮助您确定必须施加于苹果或飞机的力量，以改变其速度的大小和方向。我们将讨论动能和势能的概念，以及总高度的实用概念，您将能解释飞机如何快速将速度转换为高度，而总高度的变化则要缓得多。 课程结束时，您将发现只有很少数的力量作用于飞行中的飞机，您将能够将这些力量分类：那些改变其能量状态的力量和那些改变其轨迹的力量。您将学习负荷因子的概念，理解为什么战斗机飞行员会感觉到的重量是其实际重量的九倍！最后，我们将建立升力和推进力的方程，构成飞行动力学的基础，您将能够计算在特定速度下跟随特定轨迹所需的升力和推力。 本课程适合任何对飞机工作原理、飞行物理学或飞行动力学感兴趣的人士，尤其是航空航天工程的本科生、学员、经验丰富的飞行员、记者以及航空航天行业的专业人士。 虽然课程中会涉及一些数学公式，但始终配有草图、图像和实例讲解，因此任何人都能在不失去核心理解的情况下跳过公式。 课程大纲： 1. **飞机解剖学**：学习飞机的不同部件名称和几何描述，通过练习了解翼面等概念的实际测量难度。 2. **术语与工具**：分享描述飞机运动和姿态的精确术语，复习牛顿第二定律及动能和势能的概念。 3. **飞行动力学基础**：了解影响飞机飞行的少数力量，学习负荷因子，以及如何计算所需升力和推力。 4. **课程评估**：通过解决实际飞行动态问题（如何在滑翔机中飞行一个循环）来检验您的知识。 请注意，本课程仅为飞行力学的前奏。ISAE-SUPAERO和Eric Poquillon将在2021年秋季推出系列课程，深入探讨更多飞行力学相关问题。
Name:Anatomy of the plane
Description:Along this first week, we want you to get acquainted to the airplane. We will first learn how to name the different parts of the airplane and how to describe and quantify its geometry. And we will see through an exercise that concepts that seem well defined, like the surface of the wing (wing surface), can be, in practice, difficult to measure. This part will allow us to share a common and precise vocabulary.
Name:Vocabulary and Tools
Description:We need now to share a precise vocabulary to describe the airplane's movement and attitude in space, and a refresher on basic general mechanics principles. You will review how Newton's second law allows you to determine what force must be applied on an apple - or on an airplane, to modify the magnitude and direction of its speed. Coming back on the concepts of kinetic energy and potential energy, you will discover the very useful concept of total height and you will be able to explain how an airplane can quickly exchange speed for altitude, while changes in total height are much slower. To conclude this week, we invite you on a tour of our full flight simulator Pegasus (Pegase in French), to see how clever use of those concepts in a Head-Up Display might allow you to conduct a perfect approach and landing without a single glance at your speed or altitude indicators.
Name:Basis of flight mechanics
Description:It's time to apply your knowledge to the airplane! You will discover that only a very small number of forces apply on an airplane in flight and that you are able to classify those that change its energy state and those that modify its trajectory. You will discover the concept of load factor and understand why the pilot of a combat aircraft can feel a weight nine-time greater than his actual weight! You will come on board our DR400 light airplane (not a combat airplane indeed) with Newton's apple to better understand what this load factor actually means. Finally, you will establish the lift and propulsion equations, that form the basis of flight mechanics, and you will be able to compute the lift and thrust necessary to follow a given trajectory at a given speed. No apples were harmed in the making of this course.
Name:Graded assessment for the course
Description:In this final graded assessment, you will check your knowledge and apply it to solve an actual flight dynamic problem : how to fly a loop in a glider.
More than one century after the Wright brothers' first flight, the flight still defy our intuition. You will learn here how to name the different parts of the airplane and how to describe and quantify its geometry. For that, we need now to share a precise vocabulary to describe the airplane's movement and attitude in space, and a refresher on basic general mechanic principles. You will remind how Newton's 2nd law allows you to determine what force must be applied on an apple - or on an airplane, to modify the magnitude and direction of its speed. Coming back on the concepts of kinetic energy and potential energy, you will discover the very useful concept of total height and you will be able to explain how an airplane can quickly exchange speed for altitude, while changes in total height are much slower. In the end, you will discover that only a very small number of forces apply on an airplane in flight and that you will be able to classify those that change its energy state and those that modify its trajectory. You will discover the concept of load factor and understand why the pilot of a combat aircraft can feel a weight nine-time greater than his actual weight! Finally, we will establish the lift and propulsion equations, that form the basis of flight mechanics, and you will be able to compute the lift and thrust necessary to follow a given trajectory at a given speed. This course is for anybody interested in learning more about how planes work, the physics of flying, or flight mechanics. It will be of particular interest to undergraduate students in aerospace engineering, trainees as well as senior pilots, journalists, and professionals in the aeronautics sector. Although some mathematical formalism may be present sometimes. It is always doubled by sketches, figures, and hands-explanations. So that, anybody can skip the formulas without losing the core understanding of the concepts. No apples were harmed in the making of this course... This course is only a foretaste of the mechanics of flight. ISAE-SUPAERO and Eric Poquillon will offer you other courses and the first specialization in autumn 2021. Initially, three courses will be published to answer several questions: Can we fly as high as we want? What is a stall? Why do some planes have propellers and others have jet engines? Is an airplane always stable? How do you control an airplane following an engine failure? All this and more will be covered in this series of flight mechanics courses. This course is a part of the specialization "Fundamentals of Flight mechanics".
