课程门户-章节详情

Machine Elements in Mechanical De...

Zu Li 祖莉

1 Introduction
- 1.1 课程介绍-Course introduction（课程展示视频）
- 1.2 教学队伍-Teaching team
- 1.3 课程大纲-Course syllabus
- 1.4 教学计划-Teaching plan
- 1.5 授课教案-Course Scheme
- 1.6 参考教材-Reference textbook
- 1.7 参考文献-References
- 1.8 网络资源-Internet resources
- 1.9 课件-Courseware-Introduction
- 1.10 实验指导书-Experiment Guidebook
- 1.11 教改论文-Teaching reform thesis
2 Chapter02-the Strength of Machine Element
- 2.1 Types of Loading and Stress
- 2.2 Strength calculation of mechanical parts under static stress
- 2.3 Fatigue strength calculation of mechanical parts
- 2.4 Contact strength of mechanical parts
- 2.5 Course exercises
3 Friction Wear and Lubrication
- 3.1 Friction
- 3.2 Wear
- 3.3 Lubrication
- 3.4 Self study materials
- 3.5 Course exercises
4 Threaded Joints
- 4.1 Introduction and Threads
- 4.2 Threaded Joints Types and Fasteners（课程展示视频）
- 4.3 Preloading and anti-loosening of threaded joints（课程展示视频）
- 4.4 Strength calculation of single bolt joints
- 4.5 Design of Bolt Joint Set
- 4.6 Course exercises
5 Keys and Splines
- 5.1 Key Connection
- 5.2 Spline Connection
- 5.3 Keyless Connection and Pin Connection
- 5.4 Course exercises
6 Riveting,Welding and Bonding(self-study)
- 6.1 Self study materials
7 Power Screws
- 7.1 Type , Characteristics and Application of Power Screws
- 7.2 Sliding Power Screws
- 7.3 Ball Screws Drive（课程展示视频）
  - 7.3.1 Ball Screws（video 1）
  - 7.3.2 How to use the ball screws to design Machines（video 2）
- 7.4 Internet Resources and Course exercises
8 Belt Drives
- 8.1 Introduction(video 8.1.1 and 8.1.2)
- 8.2 Analysis of Working Process of Belt Drives （课程展示视频）
  - 8.2.1 Force analysis（video 8.2.1）
  - 8.2.2 Creeping and Elastic slipping（video 8.2.2）
- 8.3 Design Calculation of Belt Drive(video 8.3.1)
- 8.4 Structure Design of Pulley (video 8.3.2-8.4-8.5)
- 8.5 Tension and Maintenance of the Belt
- 8.6 Introduction to Other New Belt Drives
- 8.7 Internet Resources and Course exercises
9 Chain Drives
- 9.1 Introduction(video 9.1-9.3)
- 9.2 Construction of the Transmission Chain
- 9.3 The Structure and Material of Roller Chain
- 9.4 The Geometric Parameters of Chain Drive
- 9.5 The Kinetic Characteristic of Roller Chain
- 9.6 Chain Drives Load Analysis
- 9.7 Failure Mode and Bearing Capacility(video 9.7-9.8)
- 9.8 Chain Drives Design Calculation
- 9.9 The Layout, Tensioning, Lubrication
- 9.10 Course exercises
10 Gear Drives
- 10.1 Introduction（video 10.1-10.3）
- 10.2 Failure mode of gear drive and design criteria
- 10.3 Material and heat treatment
- 10.4 Computation load(video10.4-10.5.1)
- 10.5 Strength calculation of spur gears(video10.5.2)
- 10.6 Design parameters and allowable stress(video10.6-10.7)
- 10.7 Strength calculation of helical gears
- 10.8 Strength calculation of bevel gears(video10.8-10.11)
- 10.9 Strength calcualtion of modified gears
- 10.10 Structure design of gears
- 10.11 Lubrication for gear drive
- 10.12 Internet Resources and Course exercises
11 Worm gear Drives
- 11.1 Worm Gears and Worms; Making, Materials(video11.1.11.2)
- 11.2 Main Parameters and Geometrical Calculations
- 11.3 Force Analysis（课程展示视频）
- 11.4 Sliding speed and efficiency of worm gearing(video11.4-11.6)
- 11.5 Lubrication and Heat Dissipation
- 11.6 Structural Design of Worm and Gears
- 11.7 Internet Resources and Course exercises
12 Shafts
- 12.1 Introduction(video12.1-12.2.1)
- 12.2 The configurational design of shafts(video12.2.2-12.5)
- 12.3 Strength calculation of shafts
- 12.4 Stiffness and vibration of shafts
- 12.5 Methods to improve strength and stiffness of shafts
- 12.6 Course exercises
13 Sliding Bearings
- 13.1 Introduction(video13.1-13.4)
- 13.2 Types of the radial sliding bearings
- 13.3 Sliding Bearing Materials and the structure of bearing sleeve
- 13.4 Boundary-lubricated bearing design
- 13.5 Course exercises
14 Rolling Element Bearings
- 14.1 Introduction(video14.1-14.2)
- 14.2 Types and Selection of Rolling Element Bearings
- 14.3 Force Analysis, Failure Form and Calculation Criterion of Rolling Bearing (video14.3-14.4
- 14.4 Calculation of Dynamic Load and Life of Rolling Bearings
- 14.5 Combined Structure Design of Rolling Bearing (video14.5)
- 14.6 Course exercises
15 final exam
- 15.1 paper
- 15.2 answer sheet

Course exercises

Course exercises

3 1 What types of slidingfriction are there? Whatare dry friction and boundary friction?

3 2 What are the componentsof the friction characteristic curve?

3 3 What kinds of boundaryfilms are there? Whatare the characteristics of the boundary films?

3 4 What are the typicalstages of wear? Whatare the common types of wear?

3 5 What types of lubricantsare there? What are the mainperformance indicators?

3 6 What is viscosity? What are the common units? How do temperature and pressureaffect viscosity?

3 7 What is Newtons law ofviscosity?

3 8 What is hydrodynamic lubrication?

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