Cameron Devine

Machine Design ME 302

Course description

Course covers theoretical and practical design of machine parts and simple systems. Includes the integration of the basic engineering disciplines necessary for proper analysis, synthesis and design of structures, simple machines or processes, including screws, springs, bearings and gearing. Establishment of design criteria based on stress and fatigue analysis and on experimental results, statistical considerations, materials, steady and variable loading. Prerequisite: GE 206. A minimum grade of C- is required for all prerequisites.

General information

Cameron Devine Ph.D.
[email protected]
Classroom location
Panowicz 107
TTh 1:00-2:20 pm
Lecture Notes



The following schedule is tentative.

day topic reading assignment
1/10 Introduction Chp. 1  
1/12 Materials Chp. 2  
1/17 Stress Analysis Chp. 3  
1/19 Stress Analysis Chp. 3 Ass. 1
1/24 Deflection Chp. 4  
1/26 Deflection Chp. 4 Ass. 2
1/31 Stress Concentrations Chp. 5  
2/2 Stress Concentrations Chp. 5 Ass. 3
2/7 Failure Theories Chp. 5  
2/9 Fatigue Chp. 6 Ass. 4
2/14 Fatigue Chp. 6  
2/16 Shaft Design Chp. 7 Ass. 5
2/21 Shaft Design Chp. 7  
2/23 Screws and Bolts Chp. 8  
2/28 Bolt Torque Chp. 8  
3/2 Welded Joints Chp. 9 Ass. 6
3/7 Spring Break    
3/9 Spring Break    
3/14 Spring Types Chp. 10  
3/16 Spring Design Chp. 10 Ass. 7
3/21 Saint Benedict’s Day    
3/23 Advising Day    
3/28 Roller Bearings Chp. 11  
3/30 Journal Bearings Chp. 12 Ass. 8
4/4 Gear Properties Chp. 13  
4/6 Spur and Helical Gear Design Chp. 14  
4/11 Bevel and Worm Gear Design Chp. 15  
4/13 Belts and Chain Chp. 17 Ass. 9
4/18 Shaft Couplings Chp. 16  
4/20 Clutches, Breaks, and Flywheels Chp. 16 Ass. 10
4/25 Scholars Day    
4/27 Project Presentations   Ass. 11


Assignment 1

  • Turn in: 3-2 and 3-46.
  • Do problems: 3-24, 3-30, 3-35, and 3-37.
  • Take the weekly homework quiz on moodle.
  • Solution pwd: g83m4advpzB33B0.

Assignment 2

  • Turn in: 3-98.
  • Do problems: 3-126 and 3-152.
  • Take the weekly homework quiz on moodle.

Assignment 3

  • Turn in: 4-45.
  • Do problems: 4-52, 4-53, and 4-129.
  • Take the weekly homework quiz on moodle.

Assignment 4

  • Turn in: 5-36.
  • Do problems: 5-1, 5-26, 5-28, 5-31, and 5-33.
  • Take the weekly homework quiz on moodle.

Assignment 5

  • Turn in: 6-16.
  • Do problems: 6-4 and 6-8.
  • Take the weekly homework quiz on moodle.

Assignment 6

  • Turn in: 7-24 and 7-25.
  • Do problems: 7-4 and 7-3 (assume non heat treated AISI 1040 CD steel).
  • Take the weekly homework quiz on moodle.

Assignment 7

  • Turn in: 8-32.
  • Do problems: 8-13 and 8-15.
  • Take the weekly homework quiz on moodle.

Assignment 8

  • Turn in: 10-22.

Assignment 9

  • Turn in: 12-5.
  • Do problems: 11-24, and 13-2 (with a driven gear with 45 teeth).
  • Take the weekly homework quiz on moodle.

Assignment 10

  • Turn in: 14-5.

Assignment 11

  • Turn in: 16-5.

Final Project

In lieu of a final exam, a final project will be completed, and presented to the class on the last day. This project will start with a general form for a design, i.e., the location and function of the components. Assuming the loads of each of the components, the materials and dimensions can then be selected. This project may be a group or individual project; however, there must be at least one part with significant analysis required for each student in the group. For this project, significant analysis is defined as any part which requires an analysis for fatigue, buckling, or deflection. Mechanical elements to consider including are shafts, bearings, gears, and bolts among others. The following should be completed by the dates provided.


A proposal with a description and sketches of the proposed assembly should be turned in by March 23rd. This proposal should also include the members of your final project group. Feedback on the proposed design will be provided and changes to meet the requirements above may be requested.

Loading Report

A report detailing the loading of each component will be due by March 30th. This should include both mean and alternating forces for each component you will be analyzing.

Initial Design

By April 16th turn in a set of drawings for each component and the assembly. Furthermore, write a report detailing your design process for each component.

For your report use the IEEE journal template. A LaTeX version is available on Overleaf or a Word version here. Your report should consist of the following sections:

Provide a general overview of the device you are designing and why it is important.
Present the loads you are expecting on your device and the rationale used when producing these values.
Design Calculations
Explain the process used to design each part, including the equations used.
Conclude your report.
Design Review

Your initial designs will be distributed to your classmates who will check your design process to ensure the parts provided have been designed to have sufficient strength. This should include,

  1. checking that the correct equations and methods are being used,
  2. that all math has been performed correctly, and
  3. that the location of greatest stress for each part is considered.

This should be completed by April 23th.

Final Design

Taking into account any issues raised, update your design. This should be completed by May 5th.

Assignment, and project policies


Weekly homework will be due on the Sundays after it is shown on the schedule. However, it will primarily not be turned in for credit. Each week you will turn in your work for (usually) a single homework problem. You will also have a weekly homework quiz that will open at midnight on Thursday and close at midnight on Sunday. This quiz will cover the remaining problems and will be available on moodle. You will have three tries to complete the quiz and will receive the average of your three scores. Late quizzes will receive no credit. Your lowest two quiz scores will be dropped.

Working in groups on homework is strongly encouraged, but quizzes must be completed individually.

Grading policies

Total grades in the course may be curved, but individual assignment and project grades will not be. Grades will be available on moodle throughout the semester.

Graded Homework
Homework Quizzes
Final Project

Academic Honesty/Professionalism

What is Academic Integrity?

Saint Martin’s University is a community of faculty, students and staff engaged in the exchange of ideas in the ongoing pursuit of academic excellence. Essential to our mission is a focused commitment to scholarly values and intellectual integrity, and a respect for the ideas, beliefs and work of others. This commitment extends to all aspects of academic performance. All members are expected to abide by ethical standards both in their conduct and their exercise of responsibility to themselves and toward other members of the community. As an expression of our shared belief in the Benedictine tradition, we support the intellectual, social, emotional, physical and spiritual nurturing of students.

What is Academic Dishonesty?

Saint Martin’s University defines academic dishonesty as violating the academic integrity of an assignment, test and/or evaluation of any coursework. This dishonest practice occurs when you seek to gain for yourself or another an academic advantage by deception or other dishonest means. You have a responsibility to understand the requirements that apply to particular assessments and to be aware of acceptable academic practice regarding the use of material prepared by others. Therefore, it is your responsibility to be familiar with the policies surrounding academic dishonesty as these may differ from other institutions.

The Acceptable Use of AI in Coursework

Any use of technology that misleads a reviewer in assessing the student’s mastery of a specific set of skills or knowledge is a type of intellectual dishonesty, that is, a type of cheating. Students who are unsure about the appropriateness of using an artificial intelligence tool (or “AI”) should check with the instructor before using it. This includes the use of tools that generate text, images, video, code, and other works. If you are permitted by your instructor to use one or more AI tools in producing your work, you should disclose the use of that tool. You should say which tool you used and how you used it. Then if you use specific AI generated content (text, images, videos, audio, code, and so on) you should cite it in the style (APA, MLA, and so on) specified by your instructor.

University-Sanctioned Activities

If you are absent from class due to university-sanctioned activities, such as sports, it is your responsibility to request that the absence be excused; otherwise, the absence will be recorded as unexcused. Absent students are responsible for catching up with the class, and if any assignments are due on the day of the absence, it is your responsibility to turn in the assignments on time.

Counseling and Wellness Center

There may be times, as a college student, when personal stressors interfere with your academic performance and your daily life. The Counseling and Wellness Center supports students by addressing mental and emotional well-being with FREE and confidential services. To schedule an appointment, call 360-412-6123 or email [email protected] or stop by the CWC (1 st floor St. Raphael Center).

If you would rather not go to the CWC or need support in the evenings and weekends, please consider using the TimelyCare app ( to speak with a mental health provider, free, 24/7, from your phone or computer.

Center for Student Success

The Center for Student Success is an integrated learning assistance program that offers services for students at all levels of achievement in pursuit of intellectual growth and academic excellence. The Center offers peer tutoring, study support, first year/early major advising, and writing support. Please investigate ways in which to support your learning. The CSS is located in the lower level of O’Grady Library. You can sign up for tutoring appointments on the webpage:

Religious Accommodation Statement

Saint Martin’s University, in honor of the sacredness of the individual, and being deeply rooted in the Catholic Benedictine tradition of higher education, values the many religious and spiritual practices of our campus community. Saint Martin’s University supports our students in their ongoing journey of becoming. In compliance with Washington State Law RCW 28B.137.010, Saint Martin’s University reasonably accommodates students for reasons of religious observances.

Access and Accommodations

Your experience in this class is important to me. If you have already established accommodations with Disability Support Services (DSS), please communicate your approved accommodations to me at your earliest convenience so we can discuss your needs in this course. If you have not yet established services through DSS, but have a temporary health condition or permanent disability that requires accommodations (conditions include but are not limited to mental health, attention- related, learning, vision, hearing, physical or health impacts), you are welcome to contact DSS at 360-438-4580 or [email protected] or [email protected]. DSS offers resources and coordinates reasonable accommodations for students with disabilities and/or temporary health conditions.  Reasonable accommodations are established through an interactive process between you, your instructor(s) and DSS.  It is the policy and practice of the Saint Martin’s University to create inclusive and accessible learning environments consistent with federal and state law.

Sexual Misconduct/Sexual Harrassment Reporting

Saint Martin’s University is committed to providing an environment free from sex discrimination, including sexual harassment and sexual violence. There are Title IX/sexual harassment posters around campus that include the contact information for confidential reporting and formal reporting. Confidential reporting is where you can talk about incidents of sexual harassment and gender-based crimes including sexual assault, stalking, and domestic/relationship violence. This confidential resource can help you without having to report your situation to the formal reporting process through the Dean of Students – Ms. Melanie Richardson, Associate VP of Human Resources – Ms. Cynthia Johnson, Public Safety – Ms. Sharon Schnebly, or the Office of the Provost – Dr. Tanya Smith-Brice, unless you request that they make a report. Please be aware that, in compliance with Title IX and under the Saint Martin’s University policies, educators must report incidents of sexual harassment and gender-based crimes including sexual assault, stalking, and domestic/relationship violence. If you disclose any of these situations in class, on papers, or to me personally, I am required to report it.