Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Hydraulic Connected and tested. The actual assembly was tested with an empty cabinet, half loaded and fully loaded with the servers Teradata provided. During the last test, with fully loaded cabinet, a large deflection was noted between the lowest point on the cradle and the bearing plates. The deflection was later measured to be approximately 0.25 inches. The was no other damage to equipment or personnel, the cabinet was safely lowered and the redesign of the cradle is in progress. Likely cause of failure is from the excessive amount of welding that took place in that area, thus softening the metal.
Accomplishments from Previous Week
Josh - Machine shop fabrication, welding, assisted Poster development, redesigned frame set-up to get clearance to under 36 inches. Tested device. Began installation of rubber physical stops and out-rigger locking devices.
Dev - Machine shop fabrication, purchased brass shims and plunger pins for out-rigger leg. Tested device
Romulus - Machine shop fabrication, completed rough draft of Poster, installation of rubber physical stops, fabricated mounts for straps
William - Get the hose assembly done, purchased the voltmeter for the battery, purchased hydraulic fluid and cable for the battery. Tested device
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Josh - Powder coat the entire assembly.
Dev - Re-enforce the cradle to eliminate the deformation created.
Romulus - Complete final draft of poster and report. Machine shop fabrication
William - Get the connector for the battery cable, help redesign the cradle (if necessary, still waiting for the answer from the sponsor), adding some calculation for the battery discharge in the final report, and help the design for final poster
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Comments from sponsor meeting on May 31, 2013:
Given the massive redesigns has postponed Teradata Presentation. Note: this was before cradle failure.
Safety switches can finalized by Teradata.
Emphasized the requirement of parts list. AT: Noted.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Comments from Meeting on May 29, 2013:
Plan to have hardware on-site for poster session.
Plan to have video prepared in advance for poster session.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
None
Risks and Areas of Concern
Redesign of Cradle assembly, rapid fabrication, retesting of device, powder-coat and delivery for poster/sponsor presentation
Resources or Information Required but not Available
Schedule
Redesign and fabricate cradle, then test, powder-coat and deliver to Teradata.
Budget (list amount spent and amount remaining)
Budget not up to date.
Progress on Report and Webpage
Is continuous.