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所在平台: Udemy |
课程主页: https://www.udemy.com/course/an-introduction-to-helicopter-aerodynamics/
课程评论：没有评论
**课程名称：** 旋翼航空器空气动力学导论 **课程概述：** 本课程旨在深入浅出地介绍理解旋翼航空器（如直升机、自动倾转旋翼机等）工作原理和性能的简化而精妙的模型。通过第一性原理、思想实验和偶尔的电影片段，学员将学会评估旋翼效率，并预测其性能（甚至可以预测在遥远行星上的性能！）。学员将深刻理解旋翼在爬升状态下的工作方式，以及如何生成普遍的流入曲线。课程还将提供预测枫树种子在“自转”状态下降速率所需的工具和技术。此外，课程还将详细探讨前飞状态下固有的不对称性。通过混合模型，学员将学会计算整个旋翼盘面上的流入变化。最后，课程将介绍高效旋翼设计的基础（“最优”旋翼与“理想”旋翼），并深入探讨典型直升机性能指标（如最大速度、升限等）的计算。 **课程内容将涵盖并应用以下三种模型在各种条件下：** 1. **动量理论 (Momentum Theory)** 2. **桨叶元理论 (Blade Element Theory - BET)** 3. **桨叶元动量理论 (Blade Element Momentum Theory - BEMT)** 在适用的情况下，讲座将附带可选的Python脚本，供感兴趣的学生运行和扩展。 **经济支持：** 如果您认为本课程对您有益但无法负担费用，请通过电子邮件联系讲师，讲师将无条件发送定制的免费链接。
This is meant to be an exposition of the simple, yet elegant models used to understand the working and performance of rotorcraft like helicopters, autogiros etc. Using first principles, thought experiments and the occasional Hollywood video, learners will understand how to gauge the efficiency of a rotor, and how to predict its performance (even on distant planets!). They will grasp how a rotor operates in climb and how to produce the universal inflow curve. They will gather the necessary tools and techniques to predict the descent rate of a maple seed when it is in an 'autorotative' state. The asymmetries inherent to forward flight will also be covered in detail. Using a hybrid model, they will be learn how to compute the inflow variation across the rotor disk. Students will finally be exposed to the fundamentals of efficient rotor design ('optimum' vs 'ideal' rotors) before an in-depth look into the calculation of typical helicopter performance metrics (maximum speed, service ceiling etc).The course will cover and use the following three models in a variety of conditions:(1) Momentum Theory(2) Blade Element Theory (BET)(3) Blade Element Momentum Theory (BEMT)When applicable, lectures will be accompanied with optional Python scripts for interested students to run and extend.Finally, if you think you'd derive some benefit from this course, but can't afford the price, reach out to me via email and I'll send you a customized free link, no questions asked.
