156B Week 5
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Received approval to purchase major parts for the fatigue tester assembly (test bed, linear bearings, yoke roller, hand dial), will begin machining when parts arrive
Iterating base plate design according to sponsor comments
Accomplishments from Previous Week
Solved loose ends regarding yoke roller imbalance, resonance of base plate design, and spring surge
Successful design review meeting with sponsor and received approval to purchase parts
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Design feature to enable user to rotate motor shaft by hand, keep shaft rigidly fixed while turning adjustment nut (Matthiew)
Design and source parts for pulley assembly, purchase major parts (Bryant)
Create spring graphs for each set of springs, source smaller stiffness spring set (Ian)
Create engineering drawing for machining guide, redesign base plate make material usage more efficient (Josiah)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
In person meeting (4/26)
Additional spring set desired for lower force range
Sourcing extra spring set
Simplify pulley tower for base plate design, add shear plates to open face
In process of redesigning base plate to reflect comments
Be able to adjust yoke position and adjustment nut by hand
In process of designing features that allow hand adjustment
Approved to purchase parts
Will purchase major parts this week
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
In person meeting (4/23)
Calculate for spring surge in each set in the family
Done and presented to sponsor
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
none
Risks and Areas of Concern
Begin machining ASAP
Resources or Information Required but not Available
none
Schedule
Begin purchasing parts, and machine guide and test bed
Budget (list amount spent and amount remaining)
Spent: $49.88
Remaining: $1450.12
Progress on Report and Webpage
Report: Finished assigned sections
Webpage: Periodically adding updated work