ME 157 Mechanical System Design

 

                                                        SAN JOSÉ STATE UNIVERSITY

Mechanical and Aerospace Engineering Department

ME 250 - Precision Machine Design                                                                                                            Fall 2001

Instructor:            Dr. Raymond K. Yee     Office: E-310A            Phone: (408) 924-3935

                                                       E-mail: rkyee@email.sjsu.edu

Office hrs:         Tuesday 1:30-4:00 pm, Thursday, 1-2:30 pm, 4:20-5:20 pm

Class room:            Industrial Studies (IS) room 120

Class time:            Tuesday and Thursday, 5:30 - 6:45 pm

Class codes:            17003

Final Exam:            Tuesday, December 18, 2001, 17:15 - 19:30 pm

COURSE OBJECTIVE:

·        To provide the student with an overview of the principles of precision machine design, and develop within him or her, the necessary understanding and discipline to successfully design and develop precision machines and mechanisms.

Lectures will be augmented by experts from local industry, hands-on demonstrations, and tours. Students will work in teams of two members on a research project to acquire an in-depth knowledge on a chosen topic in the course.

Prerequisites: ME 157 or equivalent

Required Text:                        Slocum, A. H., “Precision Machine Design,” Society of Manufacturing Engineers, Dearborn, MI, 1992.

Recommended Text:            Smith, S. T., Chetwynd, D. G., Foundations of Ultraprecision Mechanism Design, Gordon and Breach Science Publishers, Switzerland, 1992.

Grading:      Homework 15%, Presentations 15%, Research Project 25%, Midterm Exam 20%, Final Exam 25%

COURSE SCHEDULE (tentative)

Week/Date            Event            Reading

1      8/28        Enrollment, introduction to the course and subject        

        8/30        Accuracy, repeatability, precision, resolution, cosine error, Abbe error        Sloc: 1.4, 2.1-2.1.2

2      9/4        Kinematic constraint, semi-kinematic constraint,                                            Sloc: 7.4.3, 7.4.6, 7.7, 7.8

        9/6        kinematic coupling                                                                                        Blanding: p. 1-33

3      9/11        No class (Instructor is out of town attending conference)

        9/13        Flexures                                                                                                      Sloc: 8.6

4      9/18        Structural loop, measurement loop, metrology frames                                   Sloc: 7.4.2

        9/20        Metrology frames, compensation                                                                 Sloc: 5.7

5      9/25        Guest speaker: Andy Hazelton, Nikon Research, “Design of Wafer Steppers”

        9/27        Homogenous transformation matrix, error budgets                                       Sloc: 2.2

6      10/2        Quasi-static mechanical errors                                                                    Sloc: 2.3

        10/4        Tour & presentation:  Dave Markle, Ultratech Stepper, Inc.

7      10/9        Material and Structural considerations for precision design                            Sloc: 7.1-7.5

        10/11        Midterm exam          

8      10/16        Guest speaker:  Phil Batson, “Topic to be provided later”

        10/18       Encoders and scale based metrology                                                           Sloc: 4.3

9      10/23        Guest speaker: Layton Hale “Flexure and Kinematic Mount Design”

        10/25        LVDT’s, capacitive, and inductive displacement sensors                              Sloc:3.1 –3.2.7, 4.2

10    10/30        Research project progress presentations

        11/1        Guest speaker: Bill Tandler, “GT&D Applied to Coordinate Metrology”        Sloc: 1.6         

11    11/6        Interferometry                                                                                                  Sloc: 4.5

        11/8        Tour: (tentative) Precision Engineering at Stanford University    

12    11/13        Bearings and precise linear motion                                                                  Sloc: 8.1-8.2, 8.5

        11/15        Tour (tentative):  Ron Witherspoon, Inc., Precision Machining                           

13    11/20        Bearings and precise rotary motion                                                                Sloc: 8.3-8.4, p.323

        11/22        No Class (Thanksgiving Holiday)      

14    11/27        Guest speaker (tentative): Eric Dyssegard, “Lapping”

        11/29        Actuators for precision motion: voice-coil actuators                                        Sloc: 10.4

15    12/4        Tour: (tentative) KLA-Tencor or Redwood Microsystem

        12/6        Actuators for precision motion: piezoelectric actuators                                    Sloc: 10.5

16    12/11        Research project final presentations 

        12/13        Research project final report Due Date

Additional Notes:

Homework will be due at the beginning of class on the assigned date. If homework is not turned in at this time, only partial credit will be given, unless prior arrangements have been made.  Reading assignment should be completed prior to class as preparation for the lecture.

 

References: (Some of the references listed below are on reserve for your reading pleasure in the Reserve Bookroom (RBR) in Clark Library)

1.   Moore, W. R., Foundations of Mechanical Accuracy, The Moore Special Tool Company, Bridgeport, Connecticut, 1970. (RBR)

2.   Whitehead, T. N., The Design and Use of Instruments and Accurate Mechanism, Dover, New York, 1954. (RBR)

3.   Franse, J., “Manufacturing Techniques for Complex Shapes With Submicron Accuracy,” Rep. Prog. Phys., vol. 53, 1990, pp. 1049-1094.

4.   Blanding, D. L., Principles of Exact Constraint Mechanical Design, Kodak Research Laboratories, Rochester, New York, 1992. (RBR)

5.      Jones, R. V., Instruments and Experiences, Papers on Measurement and Instrument Design, John Wiley & Sons, Chichester, 1988. (RBR, selected readings only)

6.   Rolt, F. H., Gauges and Fine Measurements, vols. 1 and 2, Macmillan and Co. Ltd., London, 1929. (RBR)