156B Week 9

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• Fabrication

  • Self-Reacting frame complete

  • Load Frame under fabrication

  • Motor mount initiated fabrication

  • Mount bearings to self-reacting frame

• Design

  • Program control algorithm for fatigue tester

  • Design cycle counter

• Testing

  • Test if bearing fits into four bearings

  • Test if tube can be spun in all four bearings

Accomplishments from Previous Week

• Motor Drive

  • Wired and connected motor and motor controller and tested compatibility and functionality = it ran- Jerry, Brandon

• Self reacting frame

  • Fabrication and assembly completed- Jorge, Sergio

• Load Frame

  • Plan and measurements readied for fabrication

• Test Article

  • One of the aluminum tubes as a test article is sanded and can fit the 4 bearings - Jerry

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• Complete fabrication and assembly of load frame - Jorge, Sergio

• Order remaining parts for bottom load plate from McMaster - Jerry

• Complete fabrication of the motor mount - Team

• Bearings

  • Bearings are mounted onto self-reacting frame - Jerry

• Strain gauge is calibrated with strain conditioner - Jerry

• Drill out pulley to match motor shaft diameter, create broach - Brandon

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• Begin installing and testing strain gauge

  • Took load bolt to strain gauge expert- Jerry

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• Look into cycle counting mechanism

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

Risks and Areas of Concern

• Bugs in programming of control system

Resources or Information Required but not Available

Schedule

• Upcoming Milestones

  • Machining/Fabrication

    • Load Frame Completed

    • Bearings Mounted

    • Motor Mount machined, fabricated and attached to self-reacting frame

  • Electronics

    • DAQ arrives

    • Blueprint of control algorithm drawn up

    • Power on and power off 

• Update Gantt chart.

Budget (list amount spent and amount remaining)

• Jerry's Purchases

  • 5 3/8" Hole Aluminum Leveling Shims from McMaster-Carr - $7.99 (w/o tax and shipping)

• Jorge's Purchases

  • 1 38" Aluminum 1.5x1.5x0.25 Angle - $10

Progress on Report and Webpage

• New images and new video will be uploaded sometime before the week ends