Machine Design – F12

This page contains information for SYEN 3379. Elements of Mechanical Design.

Syllabus
Syllabus

Lectures
Introduction to Design
Failure
Fasteners
Shaft Coupling
Bearings
Gears

Some thoughts on Clutches, Latches, and Ratchets [PDF]

Design Exercises

Design Exercise 1. Trajectory of a Potato Assigned: 9/20/12, Due: 9/26/12
Design Exercise 2. Machine Frame Assigned: 9/20/12, Due: 10/10/12
Design Exercise 3. Energy Storage Element Assigned: 10/17/12, Not to Exceed Due Date: 10/31/12
Design Exercise 4. Latch and Clutch Assigned: 11/12/12, Not to Exceed Due Date: 11/22/12
Design Exercise 5. Gear Box and Output Coupling Assigned: 12/5/12, Due: Date of Final Exam
Guidelines for Final Group Report and Grading

Homework
Measure Critical Potato Parameters Assigned: 8/27/12, Due: 9/5/12
Functional Requirements of a Trebuchet/Onager Assigned: 8/29/12, Due: 9/5/12
Properties of Materials Review Assigned: 9/5/12, Due: 9/12/12
Basic Stress Formulas Review Assigned: 9/5/12, Due: 9/12/12
Machine Frame Fastener Design Assigned: 9/24/12, Due: 10/1/12
Shaft Fits and Beam Deflection Assigned 10/15/12, Due 10/22/12
Gear Box Calculations Assigned 11/29/12, Due Date of Final Exam

Design Teams – afternoon
Team One (Onager) … Qualifying Shots (check) … Accuracy Circle (TBD) … Range (TBD)
Yousef Al-Alawi (Lead), Paul Hatfield, Logan Ware, Ayo Odeniyi

Team Two (Onager) … Qualifying Shots (check) … Accuracy Circle (21.5″ diameter) … Range (35 ft)
Eric Anderson (Lead), Stevan Ratkovic, Alex Watkins
Team Two kept adding spring force to increase range until they failed the bail at the pivot. Failure of Bail at pivot

Team Three (Trebuchet) … Qualifying Shots (check) … Accuracy Circle (3′ 9″) … Range (62 feet)
Jared Sullivan (Lead), Jon Seaton, Taylor Krost
Video of Trebuchet firing a tennis ball

Design Teams – morning
Team One (Trebuchet) … Qualifying Shots (check) … Accuracy Circle (TBD) …. Range (TBD)
Gary Iwatsuru (Lead), William Grant, Anthony Keener
Video of Trebuchet firing a tennis ball

Team Two (Onager)
Bryan White, Syd Behrens, Jared Helms

Team Three (Trebuchet) … Qualifying Shots (check) … Accuracy (No Data) … Range (circa 25 feet)
Carlton McMullen, Alexis Nishimura, James Houston

Links

McMaster-Carr
MSC
Grainger

Stock Drive Products

John Cleese’s Lecture on Creativity

Links to Parts Available for Design

Actuators
FIRST CIM MOTOR (QTY: 1 per design)
Servo Motor for Latch and Clutch (QTY: 2 per design)
Sensors
Limit Switch
Potentiometer (Link TBD)
HEDS Encoder (Link TBD)
Yaw Rate Sensor

Potato Data

Photo of Board #1
Photo of Board #2
Photo of Board #3
Photo of Board #4
Photo of Board #5

Links to part drawings
Bearing Holder
Bearing Adapter
Dowel Pin


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