Multidisciplinary Senior Design
Project Readiness Package
Project Title: / Magnetically Levitated PropellerProject Number:
(assigned by MSD) / P16228
Primary Customer:
(provide name, phone number, and email) / Dr. Steven Day
Sponsor(s):
(provide name, phone number, email, and amount of support) / Boeing
Preferred Start Term: / Fall 15
Faculty Champion:
(provide name and email) / Dr. Steven Day
Other Support: / As applicable
Project Guide:
(assigned by MSD)
Dr. Steven Day
Prepared By / Date
Received By / Date
Items marked with a * are required, and items marked with a † are preferred if available, but we can work with the proposer on these.
Project Information
* Overview:
Magnetic bearings are used in a variety of applications ranging from trains to high speed rotating machinery. This project will investigate the application of magnetic levitation to a submersible propeller. One potential advantage of magnetic bearings in this application is that there is no mechanical contact between the rotating and stationary components of a rotary machine, and therefore no mechanical wear. It is also possible to transmit magnetic forces through a solid sealed container so as to avoid shafts, shaft seals, and associated wear and leakage. The MSD team may choose to adapt an existing and functioning magnetic bearing system already in use or may choose to design a separate magnetic bearing system. This project is supported by Boeing, which is interested in submersible ROVs.
If this is a follow-on project, please include a link/reference to the prior project(s) here.
* Preliminary Customer Requirements (CR):
What attributes does the customer seek in the final project? Each CR should map to one or more ER (see below).
† Functional Decomposition (will not be given to the students, but will be provided to the team’s guide for reference):
What functionality will be delivered in order to satisfy the customer requirements? This may be in the form of a list of functions, a function tree or a FAST diagram.
* Preliminary Engineering Requirements (ER):
Include both metrics and specifications. Each ER should map to one or more CRs (see above).
Metrics: what quantities will be measured in order to verify success?
Specifications: what is the target value of the metric that the team should design to?
* Constraints:
List any external factors that limit the selection of alternatives, e.g., allowable footprint, budget, required use of legacy hardware/software.
† Potential Concepts: (will not be given to the students, but will be provided to the team’s guide for reference):
Generate a short list of potential solutions, along with the disciplines that may be required to realize each. This helps to ensure that projects are feasible.
· Modification of existing magnetic bearing system, such as that used in RIT blood pumps
· Design of a magnetic bearing that uses active control on a single axis of control
· Design of a passive magnetic bearing that has a single point of contact. This is not a full magnetic suspension, but is substantially less complicated because it doesn’t involve any electromagnets or control electronics for the bearing. I have students fabricate prototypes of this system in a 2 hr workshop, so I think that this might only be used as a fallback plan.
* Project Deliverables:
Minimum requirements:
· All design documents (e.g., concepts, analysis, detailed drawings/schematics, BOM, test results)
· Working prototype
· Measurements of performance, including thrust, thrust as a function of rpm and forward velocity, weight, power consumption, efficiency.
· Non-Dimensional analysis of results, including a tool that can be used to extrapolate data to different sized propellers.
· Technical paper
· Poster
· All teams finishing during the spring term are expected to participate in ImagineRIT
† Budget Information:
List major cost items anticipated, and any special purchasing requirements from the sponsor(s).
· Custom made electronics
* Intellectual Property:
Describe any IP concerns or limitations. Is there patent potential? Will confidentiality of any data or information be required?
· All data should be kept in the private part of the edge site
· Design aspects created by students will be property of students
· Yes, probably patent potential if not already exists. Day will file Disclosure with office of IP during the academic year.
Project Resources
† Required Resources (besides student staffing):
Describe the resources necessary for successful project completion. When the resource is secured, the responsible person should initial and date to acknowledge that they have agreed to provide this support. We assume that all teams with ME/ISE students will have access to the ME Machine Shop and all teams with EE students will have access to the EE Senior Design Lab, so it is not necessary to list these! Limit this list to specialized expertise, space, equipment, and materials.
** All functioning full (5 degrees of freedom) magnetic bearing systems require at least one active control. It is possible that this is just too much for an MSD team and that they should be encouraged to pursue a partial magnetic suspension, such as that used in a gift shop horizontal “top” shown below. This configuration replaces one of the DOF (linear displacement along the axis of rotation) with a mechanical bearing – pencil touches plastic. So, the options are
1) Full magnetic levitation – eliminates wear and friction. Substantial electronics and control law required.
2) Partial - still reduces wear and friction. No electronics required for bearing.
In either configuration of the bearing, a brushless DC motor will be required.
.
Fig. Error! No text of specified style in document.1: Simple toy demonstrating nearly full magnetic levitation using only permanent magnets: The rotor is free to rotate. Four degrees of freedom are held stable by magnets, but the axial motion is constrained by a mechanical reaction force from the clear wall shown at the left. From: http://www.arvindguptatoys.com
Faculty list individuals and their area of expertise (people who can provide specialized knowledge unique to your project, e.g., faculty you will need to consult for more than a basic technical question during office hours) / Initial/dateDay should be utilized for magnetic bearings
Mark Olles has experience with design and fabrication of magnetic bearings
Environment (e.g., a specific lab with specialized equipment/facilities, space for very large or oily/greasy projects, space for projects that generate airborne debris or hazardous gases, specific electrical requirements such as 3-phase power) / Initial/date
09-2100 should allow fabrication of all components
Some testing may require use of tow tank
Equipment (specific computing, test, measurement, or construction equipment that the team will need to borrow, e.g., CMM, SEM, ) / Initial/date
All available in 09-2100
Materials (materials that will be consumed during the course of the project, e.g., test samples from customer, specialized raw material for construction, chemicals that must be purchased and stored) / Initial/date
Magnetic materials will need to be custom ordered
Other / Initial/date
† Anticipated Staffing By Discipline:
Indicate the requested staffing for each discipline, along with a brief explanation of the associated activities. “Other” includes students from any department on campus besides those explicitly listed. For example, we have done projects with students from Industrial Design, Business, Software Engineering, Civil Engineering Technology, and Information Technology. If you have recruited students to work on this project (including student-initiated projects), include their names here, as well!
Dept. / # Req. / Expected ActivitiesBME
CE
EE / 2 / (or CE) Brushless motor design and control (can use commercial parts)
Power measurements and management
ISE / Not required, but could be useful.
ME / 3 / Packaging, including waterproofing
Cannot be scared of magnets
Fluid performance, scaling, etc.
Other
* Skills Checklist:
Indicate the sills or knowledge that will be needed by students working on this project. Please use the following scale of importance:
1=must have
2=helpful, but not essential
3=either a very small part of the project, or relates to a “bonus” feature
blank = not applicable to this project
Mechanical Engineering
/ ME Core Knowledge / ME Elective Knowledge /1 / 3D CAD / 2 / Finite element analysis
2 / Matlab programming / Heat transfer
Basic machining / 2 / Modeling of electromechanical & fluid systems
2D stress analysis / 3 / Fatigue and static failure criteria
2D static/dynamic analysis / Machine elements
Thermodynamics / 2 / Aerodynamics
1 / Fluid dynamics (CV) / 2 / Computational fluid dynamics
LabView / Biomaterials
Statistics / Vibrations
Materials selection / IC Engines
GD&T
1 / Linear Controls
Composites
2 / Robotics
Other (specify)
Electrical Engineering
/ EE Core Knowledge / EE Elective Knowledge /2 / Circuit Design (AC/DC converters, regulators, amplifies, analog filter design, FPGA logic design, sensor bias/support circuitry) / Digital filter design and implementation
1 / Power systems: selection, analysis, power budget / 2 / Digital signal processing
2 / System analysis: frequency analysis (Fourier, Laplace), stability, PID controllers, modulation schemes, VCO’s & mixers, ADC selection / 2 / Microcontroller selection/application
1 / Circuit build, test, debug (scope, DMM, function generator / Wireless: communication protocol, component selection
Board layout / Antenna selection (simple design)
Matlab / Communication system front end design
PSpice / Algorithm design/simulation
Programming: C, Assembly / Embedded software design/implementation
3 / Electromagnetics: shielding, interference / Other (specify)
Industrial & Systems Engineering
/ ISE Core Knowledge / ISE Elective Knowledge /2 / Statistical analysis of data: regression / 2 / Design of Experiment
Materials science / Systems design – product/process design
Materials processing, machining lab / Data analysis, data mining
Facilities planning: layout, mat’l handling / Manufacturing engineering
Production systems design: cycle time, throughput, assembly line design, manufacturing process design / DFx: manufacturing, assembly, environment, sustainability
Ergonomics: interface of people and equipment (procedures, training, maintenance) / 2 / Rapid prototyping
Math modeling: OR (linear programming, simulation) / Safety engineering
Project management / Other (specify)
Engineering economy: Return on Investment
Quality tools: SPC
Production control: scheduling
Shop floor IE: methods, time studies
Computer tools: Excel, Access, AutoCAD
Programming (C++)
Biomedical Engineering
/ BME Core Knowledge / BME Elective Knowledge /Matlab / Medical image processing
Aseptic lab techniques / COMSOL software modeling
Gel electrophoresis / Medical visualization software
Linear signal analysis and processing / Biomaterial testing/evaluation
Fluid mechanics / Tissue culture
Biomaterials / Advanced microscopy
Labview / Microfluidic device fabrication and measurement
Simulation (Simulink) / Other (specify)
System physiology
Biosystems process analysis (mass, energy balance)
Cell culture
Computer-based data acquisition
Probability & statistics
Numerical & statistical analysis
Biomechanics
Design of biomedical devices
Computer Engineering
/ CE Core Knowledge / CE Elective Knowledge /2 / Digital design (including HDL and FPGA) / Networking & network protocols
2 / Software for microcontrollers (including Linux and Windows) / Wireless networks
Device programming (Assembly, C) / 2 / Robotics (guidance, navigation, vision, machine learning, control)
Programming: Python, Java, C++ / Concurrent and embedded software
2 / Basic analog design / 2 / Embedded and real-time systems
Scientific computing (including C and Matlab) / Digital image processing
2 / Signal processing / Computer vision
2 / Interfacing transducers and actuators to microcontrollers / Network security
Other (specify)
RIT – Kate Gleason College of Engineering
Multidisciplinary Senior Design / Project Readiness Package
Template Revised Jan 2015