课程信息

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“Machine Design Part I” is the first course in an in-depth three course series of “Machine Design.” The “Machine Design” Coursera series covers fundamental mechanical design topics, such as static and fatigue failure theories, the analysis of shafts, fasteners, and gears, and the design of mechanical systems such as gearboxes. Throughout this series of courses we will examine a number of exciting design case studies, including the material selection of a total hip implant, the design and testing of the wing on the 777 aircraft, and the impact of dynamic loads on the design of an bolted pressure vessel. 
In this first course, you will learn robust analysis techniques to predict and validate design performance and life. We will start by reviewing critical material properties in design, such as stress, strength, and the coefficient of thermal expansion. We then transition into static failure theories such as von Mises theory, which can be utilized to prevent failure in static loading applications such as the beams in bridges.  Finally, we will learn fatigue failure criteria for designs with dynamic loads, such as the input shaft in the transmission of a car.

学生职业成果

12%

完成这些课程后已开始新的职业生涯

18%

通过此课程获得实实在在的工作福利

15%

加薪或升职

可分享的证书

完成后获得证书

100% 在线

立即开始，按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

中级

完成时间大约为31 小时

英语（English）

字幕：英语（English）

您将获得的技能

MaterialsProblem SolvingMechanical DesignFailure

学生职业成果

12%

完成这些课程后已开始新的职业生涯

18%

通过此课程获得实实在在的工作福利

15%

加薪或升职

可分享的证书

完成后获得证书

100% 在线

立即开始，按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

中级

完成时间大约为31 小时

英语（English）

字幕：英语（English）

教学大纲 - 您将从这门课程中学到什么

内容评分98%（11,455 个评分）

周

1

周 1

完成时间为 4 小时

Material Properties in Design

In this week, we will first provide an overview on the course's content, targeted audiences, the instructor's professional background, and tips to succeed in this course. Then we will cover critical material properties in design, such as strength, modulus of elasticity, and the coefficient of thermal expansion. A case study examining material selection in a Zimmer orthopedic hip implant will demonstrate the real life design applications of these material properties. At the end of the week you will have the opportunity to check your own knowledge of these fundamental material properties by taking Quiz 1 "Material Properties in Design."

完成时间为 4 小时

11 个视频（总计 93 分钟）, 4 个阅读材料, 2 个测验

11 个视频

Module 1: Course Overview2分钟

Module 2: How to Succeed in this Course6分钟

Module 3: Strength7分钟

Module 4: Modulus of Elasticity - Introduction7分钟

Module 5: Modulus of Elastricity - Applications8分钟

Module 6: Ashby Plots7分钟

Module 7: Material Selection in Hip Implant12分钟

Module 8: Common Metals in Design9分钟

Module 9: Metal Designations and Processing9分钟

Module 10: Temperature Effects and Creep9分钟

Module 11: CTE mismatch12分钟

4 个阅读材料

Syllabus10分钟

Consent Form10分钟

Total Hip Replacement Surgical Process:10分钟

Get More from Georgia Tech10分钟

2 个练习

Complete prior to Module 4 - Modulus of Elasticity30分钟

Material Properties in Design1小时

周

2

周 2

完成时间为 6 小时

Static Failure Theories - Part I

In week 2, we will review stress, strength, and the factory of safety. Specifically, we will review axial, torsional, bending, and transverse shear stresses. Please note that these modules are intended for review- students should already be familiar with these topics from their previous solid mechanics, mechanics of materials, or deformable bodies course. For each topic this week, be sure to refresh your analysis skills by working through worksheets 2, 3, 4 and 5. There is no quiz for this week.

完成时间为 6 小时

8 个视频（总计 63 分钟）, 10 个阅读材料, 1 个测验

8 个视频

Module 12: Review of Stress, Strength, and Factor of Safety10分钟

Module 13: Factor of Safety Example5分钟

Module 14: Axial and Torsional Stress Review8分钟

Module 15: Axial, and Torsional Stress Example6分钟

Module 16: Bending Stress Review6分钟

Module 17: Bending Stress Example9分钟

Module 18: Transverse Shear Review7分钟

Module 19: Transverse Shear Example7分钟

10 个阅读材料

Tip for Units 2 and 3: Equation Sheet10分钟

Example Problem Module 12 : Factor of Safety1小时

Solution Module 13: Factor of Safety10分钟

Example Problem Module 14: Axial and Torsional Stress1小时

Solution Module 15: Axial and Torsional Stress10分钟

Example Problem Module 16: Bending Stress1小时

Solution Module 17: Bending Stress10分钟

Example Problem Module 18: Transverse Shear1小时

Solution Module 19: Tranverse Shear10分钟

Earn a Georgia Tech Certificate/Badge/CEUs10分钟

1 个练习

Pre-Quiz: Static Loading12分钟

周

3

周 3

完成时间为 8 小时

Static Failure Theories - Part II

In this week we will first cover the ductile to brittle transition temperature and stress concentration factors. Then, we will learn two critical static failure theories; the Distortion Energy Theory and Brittle Coulomb-Mohr Theory. A case study featuring the ultimate load testing of the Boeing 777 will highlight the importance of analysis and validation. Be sure to work through worksheets 6, 7, 8 and 9 to self-check your understanding of the course materials. At the end of this week, you will take Quiz 2 “Static Failure.”

完成时间为 8 小时

9 个视频（总计 81 分钟）, 12 个阅读材料, 1 个测验

9 个视频

Module 20: Ductile to Brittle Transition Temperature7分钟

Module 21: Stress Concentration Factors11分钟

Module 22: Static Failure Theories7分钟

Module 23: Distortion Energy Theory (von Mises Theory)7分钟

Module 24: Simple Example Distortion Energy Theory9分钟

Module 25: Complex Example Distortion Energy Theory10分钟

Module 26: Case Study - Static Load Analysis7分钟

Module 27: Brittle Coulomb Mohr Theory9分钟

Module 28: Brittle Coulomb Mohr Theory Example8分钟

12 个阅读材料

Worksheet 2: Stress Concentration Factor Practice Problems1小时

Worksheet 2 Solution10分钟

Example Problem Module 2410分钟

Solution Module 25: Complex Example Distortion Energy Theory10分钟

Worksheet 3: Practice Problems: Distortion Energy Theory1小时

Worksheet 3 Solution10分钟

Example Problem Module 27 Coulomb Mohr Theory1小时

Solution Module 28: Brittle Coulomb Mohr Theory10分钟

Worksheet 4: Practice Problems: Coulomb Mohr Theory1小时

Worksheet 4 Solution10分钟

Tips for preparing for Quiz 210分钟

Quiz 2 Solution10分钟

1 个练习

Static Failure1小时

周

4

周 4

完成时间为 6 小时

Fatigue Failure - Part I

In week 4, we will introduce critical fatigue principles, starting with fully revisable stresses and the SN Curve. Then, we discuss how to estimate a fully adjusted endurance limit. Finally, a case study covering the root cause analysis of the fatigue failure of the Aloha Airlines flight 293 will emphasize the dangers of fatigue failure. In this week, you should complete worksheets 10, 11 and 12 as well as Quiz 3 “Fully Reversed Loading in Fatigue.”

完成时间为 6 小时

8 个视频（总计 70 分钟）, 10 个阅读材料, 1 个测验

8 个视频

Module 29: Introduction to Fatigue Failure6分钟

Module 30: Fatigue and the SN Curve10分钟

Module 31: Approximating the SN Curve8分钟

Module 32: Estimating the Endurance Limit12分钟

Module 33: Estimating the Endurance Limit - Example Problem6分钟

Module 34: Fatigue Stress Concentration Factors Part I8分钟

Module 35: Fatigue Stress Concentration Factors Part II5分钟

Module 36: Fatigue Fully Reversed Loading Example9分钟

10 个阅读材料

Worksheet 5: SN Curve Practice Problem1小时

Worksheet 5 Solution10分钟

Example Problem Module 32: Estimating Endurance Limit10分钟

Solution Module 33: Estimating the Endurance Limit10分钟

Worksheet 6: Endurance Limit Practice Problem1小时

Worksheet 6 Solution10分钟

Worksheet 7: Fully Reversed Loading in Fatigue Practice Problems1小时

Worksheet 7 Solution10分钟

Tips for preparing for Quiz 310分钟

Quiz 3 Solution10分钟

1 个练习

Fully Reversed Loading in Fatigue1小时

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Machine Design Part I