Preliminary Detailed Design
3 week plans:
Team Vision for Preliminary Detailed Design Phase
Our expectations for this phase is to focus on further development of our systems design proposal, with specific attention being made to our high-risk components, the rope pump and water wheel. We plan on expanding upon our feasibility studies for both our high-risk components as well as further development of our architecture and development of the support system for the filter and PVC piping. We also expect to further our prototyping of nitrate cycling by beginning to use live goldfish in our tests and monitor their vitality. By the end of this phase, we plan to have completed feasibility studies of our rope pump and water wheel system and have begun implementing it on our actual system by applying the knowledge we gain through this phase on further developing our systems architecture. We also plan on establishing a preliminary BOM and further develop our project test plan. Through adherence to identified project risks and maintenance of the project deadlines and deliverables, we will successfully complete the preliminary detailed design phase.
- Successfully documented changes to original concept, revised BOM and requirements
- Created sketches and CAD drawings of selected design
- Conducted prototyping of flitering and nitrate cycling
- Completed further research of sensor opportunities
- Conducted multiple analyses of the selected design including ergonomic analysis using the NIOSH lifting equation, a FMEA to identify failure risks in the design, and a cost-worth analysis to identify cost reduction opportunities
- Completed all necessary subsystem test plans as well as a systematic process to implement the full system testing
- Mapped all requirements to corresponding phases
- Successfully assessed and managed risks faced during this phase
- Maintained all deadlines and deliverables
- Developed plan for final phase of MSD I
- Created a preliminary schedule based off of the test plans for MSD II
Peer Review TrendsPeer review trends have been analyzed from the previous two phases: here.
Prototyping, Engineering Analysis, Simulation
Updated Engineering Requirements
The updated ERs are below:
Obsolete ERs are as follows:
The working document for updated ERs can be found here.
Flow Rate Calculations
Sensor System Research
Nitrate Cycle Research
Feasibility: Prototyping, Analysis, Simulation
- Confirm that the selected concepts can deliver functionality defined by the System Architecture.
- Define the optimal values of the most sensitive design parameters.
- Support the evaluation of your team's concepts with quantitative information.
- Make decisions about design drivers.
Failure Modes and Effects Analysis
Cost Worth Analysis
Drawings, Schematics, Flow Charts, Simulations
PurposeDefine instructions that will enable fabrication of the elements required to build and operate the entire system.
Updated System Sketch
Bill of Material (BOM)
The working document for the BOM can be found here.
PurposeDemonstrate objectively the degree to which the Engineering Requirements are satisfied
Design and Flowcharts
Concept ChangesOld concept:
The following tables contain the major risks for this phase. The first group are archived risks, and the second are the current top risks.
Design Review Materials
Plans for next phase
- As a team, where do you want to be in three weeks at your next review?
- As an individual on the team, what are you doing to help your team achieve these goals? (Use the individual 3-week plan template for this)
Schedule results from this phase:
Plans for next phase:
Documentation for scheduling can be found here.
Detailed Design Vision
- Management and Planning: Update any and all documents and tools needing revision following this review. Increase level of detail where applicable in test plans and the MSD II schedule. Reiterate peer review and conduct further analysis on how both the team and the individuals comprising it can continue to improve.
- Analysis: Dive into greater detail the use and application of various plant species to provide greater aeration for the fish. Continue to expand upon sensor research into increased useability.
- Prototyping: Expand nitrate cycling tests to include findings from aquatic plant aeration in our testing. Prepare comprehensive BOM of all materials needed with supplier and price indicated.
Summary: Ensure all tasks, documents, resources, and research are prepped and ready to begin testing as soon as possible in MSD II