課程信息

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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.

Learner Career Outcomes

12%

完成這些課程後已開始新的職業生涯

18%

通過此課程獲得實實在在的工作福利

15%

加薪或升職

100% 在線

立即開始，按照自己的計劃學習。

可靈活調整截止日期

根據您的日程表重置截止日期。

中級

完成時間大約為20 小時

建議：This class includes 5 weeks of study, 5-7 hours/week....

英語（English）

字幕：英語（English）

您將獲得的技能

MaterialsProblem SolvingMechanical DesignFailure

Learner Career Outcomes

12%

完成這些課程後已開始新的職業生涯

18%

通過此課程獲得實實在在的工作福利

15%

加薪或升職

100% 在線

立即開始，按照自己的計劃學習。

可靈活調整截止日期

根據您的日程表重置截止日期。

中級

完成時間大約為20 小時

建議：This class includes 5 weeks of study, 5-7 hours/week....

英語（English）

字幕：英語（English）

教學大綱 - 您將從這門課程中學到什麼

週

1

完成時間為 4 小時

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."

11 個視頻（總計 93 分鐘）, 4 個閱讀材料, 2 個測驗

11 個視頻

Module 1: Course Overview2分鐘

Module 2: How to Succeed in this Course6分鐘

Module 3: Strength7分鐘

Module 4: Modulus of Elasticity - Introduction7分鐘

Module 5: Modulus of Elastricity - Applications8分鐘

Module 6: Ashby Plots7分鐘

Module 7: Material Selection in Hip Implant12分鐘

Module 8: Common Metals in Design9分鐘

Module 9: Metal Designations and Processing9分鐘

Module 10: Temperature Effects and Creep9分鐘

Module 11: CTE mismatch12分鐘

4 個閱讀材料

Syllabus10分鐘

Consent Form10分鐘

Total Hip Replacement Surgical Process:10分鐘

Get More from Georgia Tech10分鐘

2 個練習

Complete prior to Module 4 - Modulus of Elasticity30分鐘

Material Properties in Design1小時

週

2

完成時間為 6 小時

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.

8 個視頻（總計 63 分鐘）, 10 個閱讀材料, 1 個測驗

8 個視頻

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

Module 13: Factor of Safety Example5分鐘

Module 14: Axial and Torsional Stress Review8分鐘

Module 15: Axial, and Torsional Stress Example6分鐘

Module 16: Bending Stress Review6分鐘

Module 17: Bending Stress Example9分鐘

Module 18: Transverse Shear Review7分鐘

Module 19: Transverse Shear Example7分鐘

10 個閱讀材料

Tip for Units 2 and 3: Equation Sheet10分鐘

Example Problem Module 12 : Factor of Safety1小時

Solution Module 13: Factor of Safety10分鐘

Example Problem Module 14: Axial and Torsional Stress1小時

Solution Module 15: Axial and Torsional Stress10分鐘

Example Problem Module 16: Bending Stress1小時

Solution Module 17: Bending Stress10分鐘

Example Problem Module 18: Transverse Shear1小時

Solution Module 19: Tranverse Shear10分鐘

Earn a Georgia Tech Certificate/Badge/CEUs10分鐘

1 個練習

Pre-Quiz: Static Loading12分鐘

週

3

完成時間為 8 小時

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.”

9 個視頻（總計 81 分鐘）, 12 個閱讀材料, 1 個測驗

9 個視頻

Module 20: Ductile to Brittle Transition Temperature7分鐘

Module 21: Stress Concentration Factors11分鐘

Module 22: Static Failure Theories7分鐘

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

Module 24: Simple Example Distortion Energy Theory9分鐘

Module 25: Complex Example Distortion Energy Theory10分鐘

Module 26: Case Study - Static Load Analysis7分鐘

Module 27: Brittle Coulomb Mohr Theory9分鐘

Module 28: Brittle Coulomb Mohr Theory Example8分鐘

12 個閱讀材料

Worksheet 2: Stress Concentration Factor Practice Problems1小時

Worksheet 2 Solution10分鐘

Example Problem Module 2410分鐘

Solution Module 25: Complex Example Distortion Energy Theory10分鐘

Worksheet 3: Practice Problems: Distortion Energy Theory1小時

Worksheet 3 Solution10分鐘

Example Problem Module 27 Coulomb Mohr Theory1小時

Solution Module 28: Brittle Coulomb Mohr Theory10分鐘

Worksheet 4: Practice Problems: Coulomb Mohr Theory1小時

Worksheet 4 Solution10分鐘

Tips for preparing for Quiz 210分鐘

Quiz 2 Solution10分鐘

1 個練習

Static Failure1小時

週

4

完成時間為 6 小時

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.”

8 個視頻（總計 70 分鐘）, 10 個閱讀材料, 1 個測驗

8 個視頻

Module 29: Introduction to Fatigue Failure6分鐘

Module 30: Fatigue and the SN Curve10分鐘

Module 31: Approximating the SN Curve8分鐘

Module 32: Estimating the Endurance Limit12分鐘

Module 33: Estimating the Endurance Limit - Example Problem6分鐘

Module 34: Fatigue Stress Concentration Factors Part I8分鐘

Module 35: Fatigue Stress Concentration Factors Part II5分鐘

Module 36: Fatigue Fully Reversed Loading Example9分鐘

10 個閱讀材料

Worksheet 5: SN Curve Practice Problem1小時

Worksheet 5 Solution10分鐘

Example Problem Module 32: Estimating Endurance Limit10分鐘

Solution Module 33: Estimating the Endurance Limit10分鐘

Worksheet 6: Endurance Limit Practice Problem1小時

Worksheet 6 Solution10分鐘

Worksheet 7: Fully Reversed Loading in Fatigue Practice Problems1小時

Worksheet 7 Solution10分鐘

Tips for preparing for Quiz 310分鐘

Quiz 3 Solution10分鐘

1 個練習

Fully Reversed Loading in Fatigue1小時

講師

Dr. Kathryn Wingate

Academic Professional

Woodruff School of Mechanical Engineering

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Machine Design Part I