Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Delta Design is waiting on electronic components to begin testing on their design.
We are in the process of selecting a new bearing design and are currently considering flexure joints, magnetic levitation and other possible options
Accomplishments from Previous Week
Basic friction analysis of proposed 3-wire design with sliding bearings performed. These calculations found friction to be a large issue in the design
Mobilized research from bearings with contact surfaces to flexure joints
Through component analysis, obtained confirmation of most component choices, except for bearings.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
By the end of the week each person will present their bearing on Friday and a team decision will be made
Ben: Look into magnetic bearing
Carl: Flexure joints
Chad: Look into suspension bearing
Eder: flexure joints
Kyle: flexure joints
Become familiar with electronic hardware (Kyle and Carl)
Become familiar with physical components (Eder and Ben)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Simplicity and reliability are more are main priorities. Price is a secondary consideration. We used these considerations in our component analysis to compare parts.
Obtaining a device designed by Delta for us to work with concerns the sponsor with intellectual property issues at the moment, since their devices are still being developed, but may be possible in the future (1/10/2013, phone). This is a situation that we understand the sponsor wants to be careful with, but having one of their devices to work with would be a great advantage for us, so we are showing them our best work and reliability in anticipation of a certain level of trust.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Professor Delson (1/9)
Find out more of the details behind the motivation of the project. Why are they going from 4 wires to 3 wires?
The change from 4 wires to 3 wires is to make controlling the system simpler and to reduce component costs as each wire has various electronic components associated with it and in total there are 64 frames per machine which multiplies cost reductions
See if we can get one of Delta's devices to run tests with to become more familiar with the project
Contacted delta design and were told that their device was waiting on electrical components. We also would have to run tests there unless we were cleared to take the device outside of the company
Pedro Navarro (1/11)
Emphasized the importance of friction in the design
Would like to see more models or free body diagrams
Need to know about the control of the SMA-wires in the design. Is it necessary to use a thermal conductor, or can the wires be controlled by current directly?
Find details about the process that the component must complete.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Risks and Areas of Concern
Unfamiliarity with the project and some of the components needed for it
Testing with flexure joints and how they will translate from isolated testing component to our actual device. The accuracy of our model, as it is applied to flexure joints testing.
Resources or Information Required but not Available
Schedule
Finalize bearing design and have CAD model finished by the end of week 3
Update Gantt chart.
Budget (list amount spent and amount remaining)
~$50 spent, $4950 remaining
Progress on Report and Webpage
Personal visit to Isaiah about password protection (No email response)
Data sheets added to ‘files’ section
Component Analysis were added to ‘reports’.
Some reference websites were added to ‘references’
Meeting summaries from meeting with Pedro and phone call with Keith Emery were posted under ‘files’