MAE 156A Course Overview Introduction and Objectives Robot Project Course Policies Schedules MAE 156A

2 Course Description Mechanical Design is a tightly integrated two-quarter sequence that represents the senior capstone design experience in Mechanical Engineering MAE 156A = Mechanical Design I MAE 156B = Mechanical Design II Objectives: Provide a real-world design experience in a supportive environment Learning the iterative nature of the design process through two design projects 7-week mechatronics design project (MAE 156A) 15-week sponsored design project (MAE 156B) Self-guided learning to develop life-long learning skills

MAE 156A 3 Background Mechanical systems can be subdivided into the following categories: Mechanical Components Machines Vehicles Precision Devices Micro-Mechanical Devices Mechanical Design (this course) might therefore logically relate to the design of elements listed above. A broader, more modern, description of Mechanical Design should include the impact of recent developments in computers, electronics, and the internet.

MAE 156A 4 Mechatronics “Mechtronics” has emerged as the term used to describe the integration of mechanical and electronic systems. Another definition (Bolton, W., Mechatronics: Electrical Control Systems in Mechanical and Electrical Engineering, 1999) “A mechatronic system is not just a marriage of electrical and mechanical systems, and is more than just a control system; it is a complete integration of all of them.” Key elements of mechatronics: Physical system modeling Sensors and actuators Signals and systems Computers and logic systems Software and data acquisition

MAE 156A 5 Further Reading It is very difficult to find one single textbook that encompasses the broad range of topics covered in this course. Each lecture will therefore include “further reading” selections from the electronic resources at the UCSD library. Students are expected to become familiar these resources and use them during conduct of design projects. Further reading for today's lecture: Bishop, R.H. (ed), The Mechatronics Handbook, CRC Press

MAE 156A 6 Mechatronic Robot Project There is considerable interest in using robots for surgical operations. Precise control of the robot arm movement is required for a successful operation. Examples: RoboBowl Pittsburgh - Surgical & Interventional Robotic Systems Robotic Rehabilitation & Prosthetic Systems Robotic Assistive & Wellness Systems (e.g. mobility, manipulation, social assistance aids) Robotic Telemedicine Systems Logistic & Operational Hospital Robotic Systems

MAE 156A 7 Turntable Optimization Students work in two-person teams during weeks 1 to 3. Choose a partner from your section time slot, either Axx or Bxx section Design objective is to optimize performance of a turntable platform. Metric is time to move turntable 180 degrees while balancing a scoring marble.

MAE 156A 8 Transfer Mechanism Four-person teams build a transfer mechanism during weeks 3 to 7. The transfer mechanism moves marbles and base pieces between corresponding numbers on each turntable. The transfer mechanism touches the marble base only (not the marble itself). Base pieces have different size support holes to represent surgical operations with varying difficulty. Teams select base pieces (and therefore maximum score) to transfer. Design objective is to maximize score of marbles transferred between two turntables. No score is recorded if ANY marble falls during the operation. No score is recorded if the complete operation takes longer than a time limit (TBD).

MAE 156A 9 Instructors and Resources Instructors: Mark Anderson, EBUII-283, ucsd.edu Nathan Delson (MAE 156B) Jerry Tustaniwskyj (MAE 156B) Engineering Staff: Chris Cassidy Steve Roberts Tom Chalfant Teaching Assistants: Yoshio Tsuruta (Lead), David Adams, JaRon Scott Course Website:

MAE 156A 10 Guidelines and Policies Keep copies of your assignments Review course website periodically Late assignments are reduced by 20% Attendance to Workshops and Machine Shop is essential and is included as part of your grade. Credit to teammate and outside contributions should be noted on all assignments. On-line peer review will be implemented on robot and sponsored projects. Keep you work areas clean and organized!

MAE 156A 11 Grading Your course letter grade will depend upon both individual and team scores. Individual = 50% Workshops and Machine Shop = 10% Homework = 15% Mid-Term Exam = 20% Peer Reviews = 5% Team = 50% Turntable Optimization (two-person team) = 20% Transfer Robot (four-person team) = 20% Sponsored Project (four-person team) = 10%

MAE 156A 12 Lecture Schedule WeekTuesdayThursday 0Course Overview 1Embedded ProgrammingActuators and Sensors 2Dynamic SystemsReal-Time Control 3Performance OptimizationTolerance Analysis 4Life-Cycle DesignMechanical Drives 5Project ManagementMID-TERM EXAM 6Sponsored ProjectsConcept Generation 7Materials and Parts SelectionRobot Contest 8Robot PresentationsRobot Presentations 9Problem Definition MeetingsBREAK 10Risk Reduction MeetingsRisk Reduction Meetings FINALSRisk Reduction PresentationsRisk Reduction Presentations

MAE 156A 13 Lab Schedule Microcontroller Workshop (Chris Cassidy) meets in EBUII-311 Motor Driver Workshop (Steve Roberts) meets in EBUII-311 Machine Shop (Tom Chalfant) meets in EBUII-B35 WeekWorkshop or Lab 0- 1Microcontroller Workshop 2Motor Driver Workshop 3Machine Shop 4Machine Shop 5Machine Shop 6Machine Shop