156B Week 6

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

• • Overview from testing on 5/1

    • Sampler works but should be separated into two parts: frame, and sampler-pole assembly

    • Sampler is difficult to work with without trigger in place

    • Frame is bulky and harder to work with on kayak than expected

    • Should optimize for kayak/jon boat

    • Pole did not buckle

    • Samples should be taken with about 4 inches of sediment to ensure sample doesn't fall out when removing foot and capping the sampler tube

  • Will be breaking up sampler and frame into two separate pieces

    • Frame will be used on land/jon boat

    • Sampler will be used on kayak

  • Current ideas on trigger for foot mechanism

    • Push pad

    • String with hook

Accomplishments from Previous Week

• • Proof of Concept Presentation Complete by 5/3

    • A very brief overview of the problem definition (Denny)

    • A brief overview of the current status of the project (Denny)

    • List the high risk components of the design and key decisions that need to be made in the project (Isabel)

    • Present the results of the Proof-of-Concept demonstration and what was learned (Justin)

    • List remaining questions and concerns that need to resolved (Joshua)

    • Describe key analytical methods used in project. Make sure to describe the objective of the analysis, assumptions, analytical methods, results, and significance of results. (Caitlin)

    • Show a timeline for the project showing how the prototype will be completed for the week 9 hardware review at the sponsors (Joshua)

• First Draft of Report Complete by 5/5 (All)

  • Abstract (Isabel)

  • Table of Contents (All)

  • List of Figures (All)

    • List of Tables (All)

    • Chapter 1: Project Description (Isabel)

    • Chapter 2: Description of Final Design Solution (Justin)

    • Chapter 3: Design of Key Components (Denny)

    • Chapter 4: Prototype Performance (Joshua)    

    • Chapter 5: Design Recommendations and Conclusions (Caitlin)

    • Acknowledgments (All)

    • References (All) 

    • Appendices (All)     

  • First Draft of Team Webpage Complete by 5/5 (All)

  • Intermediate Team Review by 5/5(All)

  • Improve Prototype (All)

  • Initial trigger prototype (Joshua)

  • Find method of attaching Items to Sampler/Frame/Pole

    • Pole attach and release mechanism for Sampler (Denny/Isabel)

    • Camera Attachment onto Pole (Caitlin)

    • CAD Pole attachment/4in Hardstop/Frame (Justin)

    • Conversation with Tom about prototype (Joshua)

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

• • Improve Prototype

    • Add Pole Attachment/0.1 meter Hard Stop (Justin/Denny)

    • Add Camera Attachment onto pole (Caitlin/Isabel)

    • Implement Release Mechanism for foot (Joshua/Isabel)

  • Improve Draft of Report

  • Abstract (Isabel)

  • Table of Contents (All)

  • List of Figures (All)

    • List of Tables (All)

    • Chapter 1: Project Description (Isabel)

    • Chapter 2: Description of Final Design Solution (Justin)

    • Chapter 3: Design of Key Components (Denny)

    • Chapter 4: Prototype Performance (Joshua)    

    • Chapter 5: Design Recommendations and Conclusions (Caitlin)

    • Acknowledgments (All)

    • References (All) 

    • Appendices (All)     

• Improve Team Webpage (All)

• Discuss Intermediate Team Review (All)

• Clear Up on Sponsor Wants especially on whether to optimize for jon boat or kayak (All)

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

• • Sponsor Stated that a jon boat might be used instead of kayak 5/1

    • Ask Sponsor to decide on one so that team can optimize project

  • Sponsor Stated that testing will most likely occur with teams of two people 5/1

    • Stated that there will always be two researchers aiding each other on the field

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

• • Mentioned Stainless Steel in lieu of Aluminum 4/26

    • Getting Stainless Steel with thinner walls might be a better alternative due to the latter being easier to weld

    • Team will use a mix of Aluminum and Stainless Steel to ease up on welding and have sampler still weigh the same

  • Mentioned Adding Gussets to the slider to support it 4/26

  • Mentioned that the pole attachment could be two cylinders that fit into one another 4/26

  • Mentioned having L brackets for legs to cut through the algae and also to reduce the size of the plate that attaches the legs together 4/26

  • Mentioned to move the slider closer to the sampler if possible to reduce moment on frame 4/26

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

• • N/A

Risks and Areas of Concern

• • N/A

Resources or Information Required but not Available

• • N/A

Schedule

• • Improving Prototype for the next two weeks with addition of some key mechanisms

    • Foot Trigger Mechanism

    • Pole Attachment and 0.1 meter hard stop

    • Camera Attachment to Pole

  • Next Draft of Report/Website due next Friday, 5/19

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $320.70 spent, $679.30 remaining

Progress on Report and Webpage

• • Project Management up to Week 6 complete on webpage by 5/12

  • First draft of Report/Website completed by 5/5