Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Strain gauge analysis and design in progress
Turn table has been finalized
Fabrication has yet to begin, but an old hard drive tester has been provided which will cut fabrication time
Accomplishments from Previous Week
Created a CAD drawing of a design (Daniel C., Bryan)
Load cells (Bryan), low temperature adhesives (Paulo), geared motors (Daniel C.), flow meters (Daniel W), temperature measuring devices (Jorge) were researched and a product was chosen for each category
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Dish fabrication (Jorge, Daniel W.)
Finalized strain gauge (Daniel W., Bryan)
CAD drawing of table and strain gauge set up (Daniel C., Paulo)
Temperature Testing on Hard Drive Tester (Paulo, Jorge)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments
Sponsor’s assistant was worried about the vibrations of the motor from the finalized design
Sponsor provided an old hard drive tester which features a smooth rotating turn table with a RPM reading mechanism.
Sponsor would like the team to figure out how the hard drive tester operates.
The machine is old with no power supply. We are waiting on a makeshift power supply to start experimenting with the machine.
Sponsor wanted a finalized design for a dish attachment which will be incorporated to the hard drive tester. The dish will hold the ice
We have designed a rough dish and are working with the machine shop assistants to determine the best way to fabricate the dish
Sponsor said the selected load cell was not sensitive enough for our application. Sponsor recommended using bending beam with strain gauges
Actively researching strain gauge and beam combination suitable for this project
Instructor Comments from Last Meeting and Actions Taken to Address these Comments
Look into strain gauges. Are strain gauges able to measure such small amounts of force? Research several companies which specialize in selling load cells and strain gauges. (Vislay, Futek, Omega)
Actively researching strain gauge and beam combination suitable for this project.
Ask the sponsored about the noise and data
Noise will be reduced with such a smooth rotating device. Sponsor also noted the higher the deflection of the beam the lower the noise. Incorporation of Wheatstone bridge.
Risks and Areas of Concern
Selecting a strain gauge and beam combination to get the most accurate reading for friction
Resources or Information Required but not Available
We would like to use a large freezer to test the hard drive tester which was provided. We have no knowledge about the tester because it is so old and would like to see its performance at low temperatures
Schedule
Purchasing strain gauge (Bryan, Daniel C.)
Dish fabrication (Jorge, Daniel W, Paulo)
Request Sample from Professor Jin
Brainstorm modification idea of the Hard Drive Tester (All)
Budget (list amount spent and amount remaining)
Working with Professor Talke and Professor Jin and will have a better idea next week
Progress on Report and Webpage
Webpage has been launched
Report?