Integrated System Build & Test with Customer Demo
Team Vision for Week 11 Design Review
Our Vision from Week 8
- Completed system level drawings - INCOMPLETE - 50%
- Acquire approval of system level drawings - IN PROGRESS
- Have all line items in BOM - INCOMPLETE - 90%
Current State and Status Updates
- Talking about two concepts today
- Need to choose one concept to move forward with!
- Need to wrap up detailed drawings
- Need to meet with Ed/Machine shop for further approval
- Shifting attention on transferring knowledge gain to future stakeholders
- Complete MSD requirements
- Technical Paper
- Project Poster
- Imagine RIT
To view our Process Maps in finer detail, click here.
Concept 1: Pneumatic Counterbalance
- Integrated Model
- System Model 1
- System Model 2
- System Model 3
- System Model 4
Bill of Materials
Feasibility Analyses and Other Considerations
Use Scenario: Normal Case
Assumed Weights and Dimensions
- Originally assumed dimensions, materials, and thus weights to start design process. This document is live and is updated as definition is added.
Strut Failure Mode Analysis
- Will fail by buckling before failure by yield!
- Buckling Critical Load: 52,582 lb
- FOS: 9.7
- Deflection < 1mm
Top Plate Feasibility Analysis
- FEM not employed at this time
- Preliminary Calculations suggest deflections < 1mm (worst case)
Counterbalance Pneumatic Cylinder Feasibility Calculations
Counterbalance Pneumatic Cylinder Drawing
- Needed to have it stay locked in the case of pneumatic failure.
- Switching the problem on its head, this system is "normally locked" and you use the pneumatics to load the work piece.
- Uses pre-loaded die springs to clamp the dovetail.
- Has a bumpers in place to act as hard stops for correct locking alignment
Calculations for determining the spring needed:
To view the selected air cylinder, click here.
Linear Bearing Specifications
Linear Bearing and Rail Drawing
Fixture Mount Drawing
Concept 2: Screw DrivenSystem Model
Bill of Materials
Pugh Matrix: Concept 1 vs. Concept 2
- We recommend Concept 1!
System Control Scheme
To view the System Control scheme at greater detail, click here.
What Do We Commit to Complete for Week 14 Review
- Added detail in design
- Finalized BOM
- Actuators selected
- At least 75% completed drawings
- Documentation to save knowledge gain
- Project poster
- Technical paper
What Do We Not Commit to Complete for Week 14 Review
- Vendor selection/comparison
- Full assembly plan
- Full test Plan
What Do We Seek Today?
- Conceptual approval of one of designs
- Pneumatic counterbalance design was chosen
- Open feedback/discussion on thoughts and concerns to move forward