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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/lift-flight-mechanics
课程评论:没有评论
课程名称:飞行力学 - 升力与轨迹 概述:本课程旨在帮助学员理解攻角和速度对升力的影响。课程将重点探讨飞行中的风险和限制,如失速、螺旋下滑和颤振等现象。学员将了解失速现象和马赫数如何限制飞机的最大升力和飞行高度。此外,还将深入分析颤振及飞机高度和速度为何必须限制在安全范围内。最后,课程将讲解如何控制飞机的轨迹,以及升力与载荷系数之间的关系。 本课程是“飞行力学基础”专业化的一部分。 课程大纲: 1. 升力与攻角 - 描述:学习攻角和速度对升力的影响。 2. 限制:失速与飞行包络 - 描述:关注风险和限制,如失速、螺旋下滑或颤振等,理解失速现象和马赫数如何限制飞机最大升力和飞行高度,阐明颤振的概念及其对飞机安全飞行的重要性。 3. 控制轨迹 - 描述:了解如何利用升力控制飞机轨迹,包括在水平面上转向和在垂直平面上改变飞行方向。同时,还将探讨外部因素如湍流对轨迹变化的影响及减少不利载荷峰值的方法。 4. 课程总结与最终评估 - 描述:测试你的知识掌握情况。
Name:Lift and Angle of Attack
Description:At the end of this module, you will understand the influence of the angle of attack and speed on the lift.
Name:Limitations: Stall & Flight envelope
Description:Let's focus on hazards and limitations, like stall, spiral dive, or flutter... You will understand why stall phenomenon and Mach number limit the maximum lift and altitude the airplane can achieve. What is flutter and why the altitude and speed of the airplane must be restricted to a safe domain?
Name:Controlling the trajectory
Description:As we know how to create lift, let's use it now to actually control the trajectory. We will first look at how to change our flight direction in the horizontal plane by doing a turn. We will then look at the change in the vertical plane when we pull up or push over. Sometimes, alteration of the trajectory is due to external factors like turbulence, which may result in unwanted load factor spikes. We will determine what we can do to reduce this nuisance.
Name:Summary and Final assessment
Description:Test your knowledge.
In this course, you will understand the influence of the angle of attack and speed on the lift. Then we will focus on hazards and limitations, like stall, spiral dive, or flutter. You will understand why stall phenomenon and Mach number limit the maximum lift and altitude the airplane can achieve. Then, you must understand what is flutter and why the altitude and speed of the airplane must be restricted to a safe domain. In the end, we will explain how to control the trajectory of the airplane and the relation with lift and load factor. This course is a part of the specialization "Fundamentals of Flight mechanics".