156B Week 1

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

• • We have a conceptual design that we will present on Thursday to ATA for comments 

  • Hope to either get approval, or receive feedback which we can use to further finalize the design so that we can move forward with purchasing parts

Accomplishments from Previous Week

• • Sourced parts for the conceptual design

  • SolidWorks models created for the design (rollers, support table, yoke and bearings) and FEA run on them

  • Hand calculations of major forces at worst load condition for key components

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

• • Implement changes from Design Review meeting with ATA into current CAD models

    • Yoke subassembly:

    • Guide subassembly:

    • Spring subassembly:

    • Test Bed subassembly:

  • Re-run CAD analysis on updated assemblies

    • Yoke subassembly:

    • Guide subassembly:

    • Spring subassembly:

    • Test Bed subassembly:

  • Order parts for approved subassemblies after design review

  • Design baseplate with supports

  • Resolve budget concerns

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

• • Commit to either yoke or linkage design and move forward to make a more detailed conceptual design (3/7, in person)

    • Went with yoke and conceptual design generated

  • Run analysis, both hand calculations and FEA to show that the conceptual design should theoretically work (3/7, in person)

    • FEA and hand calculations done

    • Necessary modifications made to address design issues

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

• • Financial reimbursement will need to go through Roxanne

    • Reimbursement forms will be filled out soon

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

• • none

Risks and Areas of Concern

• • Reducing cost and presenting current design solution and its currently large cost

  • Fatigue of support structure (theoretical analysis validates design, but will check periodically with design changes)

Resources or Information Required but not Available

• • none

Schedule

• • Hope to get an okay on conceptual design from ATA on Thursday morning, if not will continue iterating design based on feedback.

  • Have baseplate concept design finished by next week possibly using ATA spare parts (steel I-beams)

Budget (list amount spent and amount remaining)

• • Spent: $49.88

  • Remaining: $1450.12

Progress on Report and Webpage

• • Report: Have not started yet

  • Webpage: In process of uploading current work