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所在平台: Udemy |
课程主页: https://www.udemy.com/course/kinematics-of-machines-part-i/
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**课程名称：** 机械运动学 (Kinematics of Machines) **课程概述：** 本课程是机械工程专业的重要课程，旨在探讨机器中各运动件的相对运动。课程阐述了如何通过优化机械系统的结构设计，实现预期的运动并提高性能。机械运动学在制造业、纺织、采矿、航空航天等各行业中机器的设计具有广泛的实际应用。 本课程涵盖了课程概述视频中提到的第一至第三模块。课程材料系统地组织，辅以精心策划的视频讲座和数值问题/测验。通过现实生活应用、机构动画、示意图和已解答的数值问题，深入阐述了课程概念。 **课程主题：** * **模块一：** 1. 运动学、机器、机构、运动链和运动副。 2. 机构的运动自由度、自由度计算、库茨巴赫准则和格拉布勒准则，以及相关的数值问题。 3. 四杆机构及其倒置，格拉索夫定律，机车耦合轮，梁式发动机，瓦特直线运动机构，阿克曼转向机构。 4. 曲柄滑块机构及其倒置，旋转发动机，惠特沃斯快换回程机构，摆动汽缸发动机，曲柄槽杆机构和手摇泵机构，以及相关的数值问题。 5. 双滑块曲柄连杆机构，椭圆仪，旧车耦合器。 * **模块二：** 1. 利用相对速度矢量（图解法）进行机构的速度分析。 2. 利用瞬时转动中心（图解法）进行机构的速度分析。 3. （图解法）机构的加速度分析。 4. 机构的速度和加速度分析 - 解析法。 * **模块三：** 1. 综合设计介绍。 2. 功能综合、路径综合和运动综合。 3. 相对极点法用于综合设计。 4. 倒置法用于综合设计。 5. 利用倒置法进行功能综合。 6. 利用倒置法进行路径综合。 7. 利用倒置法进行运动综合。 8. 利用解析法和Microsoft Excel软件进行机构综合设计。 **课程材料：** * 预录制的视频讲座。 * 讲座中间穿插的测验/问题。
Kinematics of Machines is an important subject for people aspiring to be mechanical engineers and discusses about the relative motion of various elements in a machine. The subject also describes how the structural design of a mechanical system can be optimized to produce a desired motion of its elements and achieve better performance. Kinematics of machines has great practical applications in designing machines used in different industries such as manufacturing, textile, mining and aerospace etc. The present course (Kinematics of Machines) covers the Module I - III discussed in the course-overview video. The course material has been described systematically supported with properly curated video lectures and numerical problems/quizzes. The concepts in the course have been elaborated using real life applications, mechanism animations, schematics diagrams and solved numerical problems.Topics that will be covered in the course are listed as follows: Module I - 1. Kinematics, Machine, Mechanism, Kinematic links and Kinematic pairs, 2. Mobility of a Mechanism, Computation of Degrees of Freedom, Kutzbach and Grubler Criteria, Solved Numerical Problems, 3. Four-bar chain and its inversions, Grashof Law, Coupled wheels of a locomotive, Beam Engine, Watt's straight line mechanism, Ackermann Steering Mechanism, 4. Slider Crank Chain and its inversions, Rotary Engine, Whitworth Quick Return Motion Mechanism, Oscillating cylinder engine, Crank and slotted lever mechanism and Hand-pump mechanism, Solved Numerical Problems, 5. Double Slider-Crank Chain, Elliptical trammel, Scotch Yoke mechanism, Oldham Coupling.Module II - 1. Velocity Analysis in Mechanisms by Relative Velocity Vector (Graphical) Approach, 2. Velocity Analysis in Mechanisms by Instantaneous Centre of Rotation (Graphical) Approach, 3. Acceleration Analysis in Mechanisms (Graphical Approach), 4. Velocity and Acceleration Analysis in Mechanisms - Analytical Approach.Module III - 1. Introduction to Synthesis, 2. Function generation, Path generation and Motion generation, 3. Relative pole method for synthesis, 4. Synthesis by Inversion method, 5. Synthesis for Function generation by Inversion method, 6. Synthesis for Path generation by Inversion method, 7. Synthesis for Motion generation by Inversion method. 8. Synthesis of mechanisms using Analytical method and MS Excel software.Course material that will be provided to the learners include, 1. Pre-recorded video lectures, 2. Quizzes/Problems in between the lecture sessions.
