Machine Design - Elements
MEEG 304
Spring, 2000
UD

    Instructor:                   James Glancey                                                                 Project #1 - Supplemental Material
                                        102E Spencer Lab (302) 831-0712                                 Project #2 - Supplemental Material
                                        71 Townsend Hall (302) 831-1501
                                        124 Worrilow Lab (302) 831-1179                                Homeworks
                                        Home Phone: (410) 884-3077                                        Homework Solutions

                                        E-mail: jglancey@me.udel.edu


Teaching Assistant:        Abdullah Alp
                                        134 Spencer Lab

                                        E-mail: alp@me.udel.edu


Schedule:                       Section 10: Monday, Wednesday & Friday – 10:10 a.m. – 11:00 a.m.

                                       308 Gore Hall


Office Hours:                 Dr. Glancey:     102E Spencer Lab

                        M,W,F: 11:00 a.m. to 12:00pm.

                        T,R: 2 p.m. to 3:15 p.m.

                         (or by appointment)

Abdullah Alp:     134 Spencer Lab

                         T,R: 3:15 p.m. to 5:00 p.m.

                        (or by appointment)


Objective: The primary objective of this course is to understand how engineering design uses the many principles learned in previous engineering science courses and to begin to learn how these principles are practically applied. The emphasis in this course is on machine design: the design and creation of devices that consist of interrelated components used to modify force and/or motion. Along with traditional "one-answer" homework type of problems, the students will be presented with design challenges.

The type of design addressed in this course is that of detailed design, which is only one part of the entire design process. In detailed design, the general concept, application and basic outline of the required device have already been designed. In this course, one is not trying to invent a new device but rather to define the shape, size and material of a particular machine element such that it will not fail under the expected load and operational conditions. The focus in this course is primarily on the stress-life approach.
 
 

By the end of the course, students will be able to:


Grading:          60% = Four Examinations (15% each)

                            15% = Homework and Quizzes

                            25% = Three Projects (first is 5%, second is 15%, third is 5%)

                            (+/- grades are used when there are large gaps in the distribution to reward differences in student performance)


Text and Recommended References:

Textbook:                         R. L. Norton, Machine Design: An Integrated Approach, Prentice Hall, 1997.

Additional References:

J.E. Shigley and C.R. Mischke. Mechanical Engineering Design, McGraw Hill, 1989.

J.G. Bralla. Handbook of Product Design for Manufacturing, McGraw Hill, 1986.

Oberg, E., F.D. Jones, H.L. Horton and H.H. Ryffel. Machinery’s Handbook, 25th Edition. Industrial Press, Inc. 1996.


Prerequisites:

Students must have had a course in strength of materials (such as MEEG 215). In addition, students should be familiar with computer-aided engineering methods (MEEG 202) and engineering properties of materials (MEEG 321).

Note: in the junior-design sequence, this course follows the material of MEEG301 but it does not explicitly require the material taught in MEEG301.
 
 


Homework:

Homework assignments will be posted on the web during the semester and will be the responsibility of the TA for this class. Information, solutions and grading questions should initially be addressed to the TA. Homework is to be done individually; cheating of any kind will not be tolerated. Solving homework problems is the principal way to learn the material of the course and the best way to prepare for the examinations. Some of the homework will involve the use of the computer.


Examinations:

There will be three in-class examinations during the semester. There will be no comprehensive final exam, but a fourth examination will be given at the time set aside for the final exam.

Examinations will be open book but closed notes and will emphasize concepts and ideas; cheating of any kind will not be tolerated. The examinations will involve short answers as well as steps in the problem-solving process. You should bring scratch paper, a pencil, and eraser and a calculator. Examinations will be returned in class; you will be required to identify any ungraded material or grading addition errors prior to leaving the classroom with your examination. Concept questions and grading criteria questions may be asked during normal office hours. There are no scheduled make-up examinations. Valid University-recognized excuses for missing an examination will be handled individually as they occur.


Design Projects:

Project 1 : (5%)

The class will be broken into teams of two on February 11th. Each team must specify a two-piece assembly they will make by February 14th. There will be two milestones during this project: 1) on February 21st, each team will submit CAD drawings for the components to be fabricated, a list of material required, the steps required to manufacture each component, an estimate of the time required for each manufacturing operation and an estimate of the total production time, and 2) on March 3rd, each team will submit the evaluation performed by Art Baeckel (after the parts are finished), an explanation/justification of the processes used to produce your parts, the actual times spent on each manufacturing operation and a summary explaining any differences between the drawings and parts as well as the estimated and actual manufacturing times.

Additional details regarding the project requirements are given here.


Project 2: (15%)

The class will be broken into teams of three or four on February 28th. Each team will be given a set of problems from which to choose. Teams must identify what project they have chosen at the start of class on March 3rd and meet with their customer by March 10th.  There will be three milestone events associated with the project. Each report will contain the names and signatures of each team member (required individual contributions to the report will be identified by team member’s name). The signature will appear after a number on the cover page of the report indicating the teams’ consensus as to that individual’s contribution to the report – 0 being "none" and 100 being the level of effort expected by the team.

Note: design is an iterative decision-making process and requires being able to communicate and justify decisions; it is not acceptable to just present something that "works." The reports are the documentation that explains the design process: what is the problem to be solved, how is the problem being solved presently, how will the success of the design be objectively measured and using that information to explain why a particular solution was chosen. No late reports will be accepted.
For specific information regarding the 00S projects and project requirements, click here.


Project 3: (5%) This project will be assigned May 1st. Each person will create a computer tool (using a spreadsheet, TKSolver, etc.) to help in the design of a fastener or a welded joint. A user’s guide and report with a design example will be due at the end of class on May 17th. No late reports will be accepted.


Lecture Topics:

                        Monday, Wednesday, Friday Schedule – 2000 Spring Semester
 
  Monday Wednesday Friday   
February    9 11 Chapter 1: Introduction and Chapter 2: 

Statistical Nature of Properties

14 16 18 Chapter 5: Static Failure
21 23 25 Chapter 6: Fatigue Failure
March  28 1 3 Chapter 6: (continued)
6 8 10 Chapter 9: Shafts
13 15 17 Chapter 9: (continued)
20 22 24 Chapter 10: Bearings & Lubrication
27 29 31 SPRING BREAK
April 3 5 7 Chapter 10 (continued)
10 12 14 Chapter 11: Spur Gears
17 19 21 Chapter 13: Springs
24 26 28 Chapter 13: (continued) & Chapter 14 Fasteners 
May 1 3 5 Chapter 14 (continued) and Weld Design
8 10 12 Engineering Economics (handout)
15 17   Engineering Economics (continued)
       

* Students are expected to come to class prepared. Please read the chapter(s) indicated prior to the week shown in the schedule. Class participation can be used to increase or decrease a particular homework assignment by a third of a grade, i.e. using plus/minus.