机械原理
Theory of Machines and Mechanisms
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
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
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
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
? 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
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
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)
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)
Discussion Session
? A discussion session will be held
weekly,except for the first week,to
discuss student questions and solve
sample problems,
Course information and requirements (8)
Grading
– Homework and quizzes - 10%
– Experiments - 5%
– Projects and discussion– 20%
– Final Exam - 65%
Course information and requirements (9)
The Textbook
1,Design of Machinery An Introduction to the Synthesis
and Analysis of Mechanism and Machine,Robert L.Norton
Course information and requirements (4)
Reference Books
1,机械原理教程 申永胜 清华大学出版社
机械原理辅导与习题,申永胜,清华大学出版社
2,Mechanisms and Dynamics of Machinery,
Hamilton H,Mabie,Charles F,Reinholtz
3,Theory of Machines and Mechanisms,
J.E.Shigley,
4,Hong-sen Yan,Creative Design of Mechanical
Device,
Course information and requirements (5)
Reference Books of Invention
? 1,Hong-Sen Yan,Creative Design of Mechanical Devices
? 2,黄纯颖,机械创新设计，高等教育出版社,1999.12
? 3,冯鹏志，世界十大发明家,四川民族出版社,
1998.08
? 4,乔际平，刘甲珉，物理创造思维能力的培养,首都
师范大学出版社,1998.04
? 5,魏发辰,工程师实用创造学，中国社会出版社,
1992.05
Course information and requirements (6)
Reference Books for Further Study
? 6,机械系统设计原理,邹慧君,科学出版社,
? 7,黄靖远，机械设计学，机械工业出版社，
1996.10
? 8,赵传栋,通向科学家之路 -科技创新话例，
复旦大学出版社,2000.03
Course information and requirements (7)
To be an engineer
? Professional ethics,social and
environmental responsibilities of
engineers,
? Role of communication,considerations
of risk,safety,and liability in
engineering design and practice,
Engineer’s Task
? Design something or make it work
Ask,1,Does the design do the job it is
supposed to do?
2,Is it safe?
3,Is it cost-effective?
Need balance
Becoming a Good Designer
? One cannot learn design without,doing”
design
? Simply,doing” design does not necessarily
mean one is doing it well
? The best way is that do design and learn from
the Design Process
? Good designers understand and create an
overall experience,not simply an object
“Why I Became Interested in Design”
? Real-world engineering involves much more than
Engineering Science; creativity is interwoven with
engineering physics
? Great designs come about with integration of Design Skills,
creativity and Engineering Science spanning many
disciplines
? This is especially true of today’s products (e.g,HP printers
involve ME,EE,CS,Materials…and business)
? Today we are less limited by technology than ever,We are
increasingly limited by own creativity and ability to work
together,
Types of Design
Design
Eng.Design
Mechanical Eng,Design
Machine Design
Mechanism Design
…
From the Book of Creative Design of Mechanical Devices
The Design Process is as Important
as your Ideas and Analysis
Ite
ratio
n
Concept Generation
Problem Definition
Concept Selection
Embodiment Design
Detail Design
Fabrication
Evaluation
Design
Education
Problem Definition
Design Objective
Specification
Design Constraints
Conceptual Design
Select Design Concept
Design
Analysis
Prototype &Test
Eng,Drawings Mechanical design process
Problem Definition
Structural Synthesis
Dimensional Synthesis
Kinematic Analysis
Static Analysis
Strength Design
Kinetic Analysis
Mechanism
Design
Machine
Design
Mechanism and Machine Design Process
A few problems to ask you
?What is a machine? What is a
Mechanism? Please try to give an
example and a definition!
?Is there any common characteristics of
different machines? What are they?
The Object to be investigated
? Machine
Energy transformation Fixed movement
The Object to be investigated
Machine
1,Composed of man-made elements
2,The elements arranged to transmit motion
3,Can transmit energy,and fulfill certain
work for human being
The Object to be investigated
Mechanism
A system of elements arranged to transmit motion
The Object to be investigated
Machinery
The general concept of
machines or mechanisms
The Parts of a machine
1,Motors and Drivers
2,Controller
3,Working part
4,transmission
Is there any common characteristics of
different machines?
Same mechanism,
different machines
History of wheels
A Brief Review of the Machine History
? It is a man-made object that transform the energy into
another form,It could decrease the hard labor work
and increase the working efficiency,
? It is a symbol of civilization,
? It is an important part of national economy,
? The modern civilization depends upon the mechanical
engineering,With the help of machines,our lives
changes much better,The development of machine
industry,push the step of the civilization forward,
Retrospect of the mechanical
engineering history
Retrospect of the machine
history
This is the recovered
South Governor
Retrospect of the machine
history
This is called
Jean spinning machine
It is a symbol of
Industry revolution
Retrospect of the machine
history
The first steam engine invented by a French Military officer
Retrospect of the machine
history
The invention of inner-combustion
Engine induced the second industry
revolution
Retrospect of the machine
history
In 1927 An American called Lindberg flied
Across the Atlantic Ocean with this air plane
The inner combustion engine pushed the
invention of Automobile and airplane forward
Retrospect of the machine
history
The space station
Retrospect of the machine
history
The Space shuttle deploy
The Hobbler
Radio Telescope
A space age symbol
Retrospect of the machine
history
The miniature gear
Retrospect of the machine
history
A spider Robot
? Conclusion,
? The Fundamentals of machine design theory
grows up with the development of machine
industry,
? It helps us to analyse machines and design
new devices,
? 温诗铸，黎明主编《机械学发展战略研究,
Recommended Topic for Research
1,The Mechanical Engineering History in China
2,World history of Mechanical Engineering
3,Robotic History
4,Mini-robot History
5,History of Mechanisms
6,History of Machine Design
7,History of CAD and CAM
8,History of Intelligent Structure
9,History of Timer
Homework
Recommended Topic for Research
10,History of the Numerical Lathe
11,History of Lathes
12,History of Precision Instruments
13,History of Spacecraft
14,History of Aviation
15,History of Nano-scale Machines
16,History of Nano-scale Science
17,History of Tribology
18,History of Mechanical Engineering Education
Attention and Requirement
? 1,The reference material should be more than 5 articles
? 2,You shouldn’t copy from a paper more than 20 words in series,
? 3,Have a deep understanding of the technology
? 4,Everyone should be independent,
? 5,List all the references
Theory of Machines and Mechanisms
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
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
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
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
? 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
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
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)
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)
Discussion Session
? A discussion session will be held
weekly,except for the first week,to
discuss student questions and solve
sample problems,
Course information and requirements (8)
Grading
– Homework and quizzes - 10%
– Experiments - 5%
– Projects and discussion– 20%
– Final Exam - 65%
Course information and requirements (9)
The Textbook
1,Design of Machinery An Introduction to the Synthesis
and Analysis of Mechanism and Machine,Robert L.Norton
Course information and requirements (4)
Reference Books
1,机械原理教程 申永胜 清华大学出版社
机械原理辅导与习题,申永胜,清华大学出版社
2,Mechanisms and Dynamics of Machinery,
Hamilton H,Mabie,Charles F,Reinholtz
3,Theory of Machines and Mechanisms,
J.E.Shigley,
4,Hong-sen Yan,Creative Design of Mechanical
Device,
Course information and requirements (5)
Reference Books of Invention
? 1,Hong-Sen Yan,Creative Design of Mechanical Devices
? 2,黄纯颖,机械创新设计，高等教育出版社,1999.12
? 3,冯鹏志，世界十大发明家,四川民族出版社,
1998.08
? 4,乔际平，刘甲珉，物理创造思维能力的培养,首都
师范大学出版社,1998.04
? 5,魏发辰,工程师实用创造学，中国社会出版社,
1992.05
Course information and requirements (6)
Reference Books for Further Study
? 6,机械系统设计原理,邹慧君,科学出版社,
? 7,黄靖远，机械设计学，机械工业出版社，
1996.10
? 8,赵传栋,通向科学家之路 -科技创新话例，
复旦大学出版社,2000.03
Course information and requirements (7)
To be an engineer
? Professional ethics,social and
environmental responsibilities of
engineers,
? Role of communication,considerations
of risk,safety,and liability in
engineering design and practice,
Engineer’s Task
? Design something or make it work
Ask,1,Does the design do the job it is
supposed to do?
2,Is it safe?
3,Is it cost-effective?
Need balance
Becoming a Good Designer
? One cannot learn design without,doing”
design
? Simply,doing” design does not necessarily
mean one is doing it well
? The best way is that do design and learn from
the Design Process
? Good designers understand and create an
overall experience,not simply an object
“Why I Became Interested in Design”
? Real-world engineering involves much more than
Engineering Science; creativity is interwoven with
engineering physics
? Great designs come about with integration of Design Skills,
creativity and Engineering Science spanning many
disciplines
? This is especially true of today’s products (e.g,HP printers
involve ME,EE,CS,Materials…and business)
? Today we are less limited by technology than ever,We are
increasingly limited by own creativity and ability to work
together,
Types of Design
Design
Eng.Design
Mechanical Eng,Design
Machine Design
Mechanism Design
…
From the Book of Creative Design of Mechanical Devices
The Design Process is as Important
as your Ideas and Analysis
Ite
ratio
n
Concept Generation
Problem Definition
Concept Selection
Embodiment Design
Detail Design
Fabrication
Evaluation
Design
Education
Problem Definition
Design Objective
Specification
Design Constraints
Conceptual Design
Select Design Concept
Design
Analysis
Prototype &Test
Eng,Drawings Mechanical design process
Problem Definition
Structural Synthesis
Dimensional Synthesis
Kinematic Analysis
Static Analysis
Strength Design
Kinetic Analysis
Mechanism
Design
Machine
Design
Mechanism and Machine Design Process
A few problems to ask you
?What is a machine? What is a
Mechanism? Please try to give an
example and a definition!
?Is there any common characteristics of
different machines? What are they?
The Object to be investigated
? Machine
Energy transformation Fixed movement
The Object to be investigated
Machine
1,Composed of man-made elements
2,The elements arranged to transmit motion
3,Can transmit energy,and fulfill certain
work for human being
The Object to be investigated
Mechanism
A system of elements arranged to transmit motion
The Object to be investigated
Machinery
The general concept of
machines or mechanisms
The Parts of a machine
1,Motors and Drivers
2,Controller
3,Working part
4,transmission
Is there any common characteristics of
different machines?
Same mechanism,
different machines
History of wheels
A Brief Review of the Machine History
? It is a man-made object that transform the energy into
another form,It could decrease the hard labor work
and increase the working efficiency,
? It is a symbol of civilization,
? It is an important part of national economy,
? The modern civilization depends upon the mechanical
engineering,With the help of machines,our lives
changes much better,The development of machine
industry,push the step of the civilization forward,
Retrospect of the mechanical
engineering history
Retrospect of the machine
history
This is the recovered
South Governor
Retrospect of the machine
history
This is called
Jean spinning machine
It is a symbol of
Industry revolution
Retrospect of the machine
history
The first steam engine invented by a French Military officer
Retrospect of the machine
history
The invention of inner-combustion
Engine induced the second industry
revolution
Retrospect of the machine
history
In 1927 An American called Lindberg flied
Across the Atlantic Ocean with this air plane
The inner combustion engine pushed the
invention of Automobile and airplane forward
Retrospect of the machine
history
The space station
Retrospect of the machine
history
The Space shuttle deploy
The Hobbler
Radio Telescope
A space age symbol
Retrospect of the machine
history
The miniature gear
Retrospect of the machine
history
A spider Robot
? Conclusion,
? The Fundamentals of machine design theory
grows up with the development of machine
industry,
? It helps us to analyse machines and design
new devices,
? 温诗铸，黎明主编《机械学发展战略研究,
Recommended Topic for Research
1,The Mechanical Engineering History in China
2,World history of Mechanical Engineering
3,Robotic History
4,Mini-robot History
5,History of Mechanisms
6,History of Machine Design
7,History of CAD and CAM
8,History of Intelligent Structure
9,History of Timer
Homework
Recommended Topic for Research
10,History of the Numerical Lathe
11,History of Lathes
12,History of Precision Instruments
13,History of Spacecraft
14,History of Aviation
15,History of Nano-scale Machines
16,History of Nano-scale Science
17,History of Tribology
18,History of Mechanical Engineering Education
Attention and Requirement
? 1,The reference material should be more than 5 articles
? 2,You shouldn’t copy from a paper more than 20 words in series,
? 3,Have a deep understanding of the technology
? 4,Everyone should be independent,
? 5,List all the references
