Mechanical Engineering Project

Machine Design Project (100 points)

Some of the requirements listed below do not apply to those working on paper design only.

Budget ≤$60; SAFETY #1 Unsafe = F course grade; Receipts (part name, amount + shipping and tax)

TEAM’S Responsibility

1. 10 points (Design Introduction)

1. Title page with

   1. the name of project

   2. picture of the project

   3. names of team members

2. Problem Statement page

   1. What is the problem? A brief description of the problem, providing a real source of the problem would be good.

   2. Why is the problem worth solving? Talk about the benefits, maybe even list them.

   3. Who are you benefitting? You could be one of the beneficiaries, but must not be limited to you. List the beneficiaries.

3. Engineering Specifications for your machine:

   1. Must have dimensional values; e.g. WxHxD (Width, Height, Depth), or

   2. Must not weigh more than x lbs. and,

   3. Must Perform a task in x minutes and must perform it y times per day seven days a week and must last for 10 years.

1. 30 points (Hardware, operation and cost, an isometric assembly drawing, exploded view, BOM

1. Sketch your team’s solution using CAD.

   1. Label the parts

   2. Create a table of all the parts in the sketch with a column indicating whether you are making it or buying or receiving a donated item.

INDIVIDUAL’S Responsibility

1. (50 points)

1. Engineering Design

1. 1. The team must draw a CAD of the assembly and one with an exploded view.

The part CAD drawings may be used in drawing clear FBDs.

1. 1. BOM (Team)

   2. The team must use FEA for at least one component (follow the Youtube tutorial by Carson Schmeck posted in the “Discussion Problems”)

   3. Product design

SIZING of parts (Each member’s contribution in sizing parts)

1. 1. 1. 1. FBD of each part

         2. Determine the unknown forces using an equation solver. Highlight the unknown forces in the solution.

         3. Choose materials

         4. Using the forces conduct stress analysis and size each part using an equation solver. (Include an output showing the design equations and highlight the results of unknown sizes). Design for a factor of safety of 2.

         5. Using fatigue, size only those components that experience cyclic loading. State the type of loading, i.e. either fully reversed, repeated or fluctuating.

         6. Standardize the sizes (Google for standard sizes of stocks)

         7. Working drawings (It must include drawings from each member meeting the departmental drawing standards)

TEAM’S Responsibility

1. TESTING (5 points). How will you test the design to evaluate if it met the specifications? That is to say, have you created a test site or do you have a person on whom you will safely test the prosthesis, and so on.

2. Conclusion (5 points): (Any discussion will be graded down)

1. 1. 1. 1. 1. Restate your specifications and state how well each specification was met.

            2. State the final cost, even if you had to pay over the budgeted $60 amount.

         2. References, if any.

         3. Appendix (“dixes” or “dices”)

Peer Evaluations

This evaluation is CONFIDENTIAL and will not be disclosed: Each member must email the evaluation after the report is turned in and email it to:

[email protected]

The evaluation must be brief, (no, really!).

DO THE FOLLOWING

On a single page list the names of members in your project team including yourself. Against your name write the word “Evaluator”. Assign a single letter grade to each member’s overall contribution to the project with a very brief opinion (a line or two only!) about that member’s strong and weak points with respect to the project.

Do not assign a letter grade to yourself.

Peer evaluations will be used to assign an overall grade to each member in the project only. That is to say, each member’s project grade will be affected by their peer’s evaluations of them.

Failure to email this peer evaluation will result in a course grade of an incomplete “I”.