清华大学：《机械原理》课程PPT教学课件（双语版）Chap1 Todays Topics

机械原理 Theory of Machines and mechanisms

机械原理 Theory of Machines and Mechanisms

Today's Topics o What are we going to study in this course? Design Process Course information and requirements How to be an engineer? ● Methods of learning o A brief review of the machine history ● Homework

Today’s Topics ⚫ What are we going to study in this course? ⚫ Design Process ⚫ Course information and requirements ⚫ How to be an engineer? ⚫ Methods of learning ⚫ A brief review of the machine history ⚫ Homework

The Content of our course(1) What are mechanism and machine? Objects Mechanism machine Kinematics Kinetics or Dynamics Kinematic analysis Kinematic synthesis How to analyze mechanism How to synthesize mechanism

Mechanism & Machine Kinematics Kinetics or Dynamics Kinematic analysis Kinematic synthesis Objects How to analyze mechanism & How to synthesize mechanism The Content of our course(1) What are Mechanism and Machine?

The Content of our course(2) The Content of our course It is broadly divided into two parts 1. Kinematics of Mechanism: the study of motion without regard to forces That is about motion of the components and the basic geometry of the mechanism, and is not concerned with the forces which cause or affect the motion all the components of the mechanism are, in general considered rigid member 2. Kinetics or Dynamics of Mechanisms: the study of forces on the system in motion

The Content of our course It is broadly divided into two parts. 1. Kinematics of Mechanism: the study of motion without regard to forces. That is about motion of the components and the basic geometry of the mechanism, and is not concerned with the forces which cause or affect the motion. All the components of the mechanism are, in general, considered rigid member. 2. Kinetics or Dynamics of Mechanisms: the study of forces on the system in motion. The Content of our course(2)

The Content of our course(3) The Content of our course Kinematics of mechanisms is broadly divided into two branches: analysis and synthesis 1) Kinematic analysis is the analysis of the motion of a mechanism 2) Kinematic synthesis is the development of a mechanism which will yield a desired set of motion characteristics We will mainly deal with How to analyze mechanism How to synthesize mechanism

The Content of our course Kinematics of Mechanisms is broadly divided into two branches: analysis and synthesis 1) Kinematic analysis is the analysis of the motion of a mechanism 2) Kinematic synthesis is the development of a mechanism which will yield a desired set of motion characteristics. We will mainly deal with How to analyze mechanism & How to synthesize mechanism The Content of our course(3)

EXample of the Machines and Mechanisms e Mechanisms: pencil sharper, clock, folding chair, adjustable desk lamp, bike e Machines: robots, bulldozer, park rides, elevator, engine o Can you give an example? o Some mechanisms widely used in our life 国 Planar four-bar linkage, Cam, Gears, Ratchet mechanism What is machine and mechanism?

Example of the Machines and Mechanisms ⚫ Mechanisms: pencil sharper, clock, folding chair, adjustable desk lamp, bike ⚫ Machines: robots, bulldozer, park rides, elevator, engine. ⚫ Can you give an example? ⚫ Some Mechanisms widely used in our life. Planar four-bar linkage, Cam, Gears, Ratchet mechanism What is machine and mechanism?

Methods of Learning 1. More practice 2. Have detail visits of our lab 3. Pay attention to the machine you met 4. More discussion

Methods of Learning 1. More practice 2. Have detail visits of our lab 3. Pay attention to the machine you met 4. More discussion

Course information and requirements (1 Organization of the Course 1. Class instruction 2. Homework quizzes 3. Experiment 4. Simple projects research paper 5. Discussion communication

Course information and requirements (1) Organization of the Course 1. Class Instruction 2. Homework & Quizzes 3. Experiment 4. Simple Projects & Research paper 5. Discussion & Communication

Course information and requirements(2) Information ● Instructor:郝智秀 Class time Thur 8: 00-9: 50am Classroom: 6A205 Office:9003-3402 Tel:6278-5522(o) E-mail:Haozx@mail.tsinghua.edu.cn

Information ⚫ Instructor: 郝智秀 – Class time :Thur 8:00-9:50am – Classroom: 6A205 – Office: 9003-3402 – Tel.: 6278-5522 (o) – E-mail: Haozx@mail.tsinghua.edu.cn Course information and requirements (2)

Course information and requirements( 3) Homework Quizzes o Homework will be assigned on every week except for week 1, and collected on the specified due date. Late homework will not be accepted. There will have several quizes and all the quizes and homework will be calculated in the final grade

Homework & Quizzes ⚫ Homework will be assigned on every week except for week 1, and collected on the specified due date. Late homework will not be accepted. There will have several quizzes and all the quizzes and homework will be calculated in the final grade. Course information and requirements (3)