P 09045 Membrane Characteristic Test Stand Joseph Ferrara
P 09045: Membrane Characteristic Test Stand Joseph Ferrara Joseph Church Joshua Van Hook Jamie Jackson Joelle Kirsch Team Lead (ME) Design Engineer (ME) Lab. View Engineer (EE) Electronics (EE) Project Manager (ME) Sponsor: Dr. Elizabeth De. Bartolo 1/12/2022 MSD I 09045: Membrane Characterization Stand 1
Project Description Create a test machine that can accurately measure load and strain on a material sample 1/12/2022 Key Level Customer Needs Engineering Specs Collect Load data from two load cells Up to 10 Newtons resolution of +/- 0. 001 Collect strain data with use of high speed camera and imaging analysis software Up to 100% elongation Resolution of +/- 0. 1% Allow for 1000 pictures/test Eliminate Edge Effects with use of centralized area Cross shape sample, concentrate on central area of 10 mm x 10 mm MSD I 09045: Membrane Characterization Stand 2
Design Concept Lead Screws – Oppositely Threaded 2# Load Cell Moveable Block – Pulls sample Motion Arm Precision Linear Ball Bearings Thompson Stainless Steel Shaft Support Rod Needle Roller Bearing/Nylon Washers Adjustable Clamp 1/12/2022 Pivoting Control Arm MSD I 09045: Membrane Characterization Stand 3
Design Concept 1/12/2022 MSD I 09045: Membrane Characterization Stand 4
System Architecture Motor Lead Screws Provides the Vertical motion to stretch sample Sample Power Moves motor Motor Controller Power Load Cell Load call measures stress on sample Camera takes pictures of sample GUI controls motor through controller DAQ Lab. VIEW GUI Data from DAQ colleted 1/12/2022 DAQ sends signal to take pictures MSD I 09045: Membrane Characterization Stand Camera Power 5
High Level Risk Assessment Load Cell Damage Overload or side load could potentially damage the integrity of the sensor Mitigation plan Redesign clamping system or add a support system to ensure no side loading that could significantly cause a problem Clamping redesign would include a lighter material like UHMWPE Top Plate Wiggle Movement of the top plate could result in inaccurate load and strain data 1/12/2022 Mitigation plan Add in support posts at all four corners of the plate for stability MSD I 09045: Membrane Characterization Stand 6
Current State of Design meets all customer needs Design meets engineering specifications for full system and subsystems On target to meet project budget of $1500 except for potential overrun on cost NI DAQ PCI Board - $379 Extra Linear Bearings ~$20/bearing Schedule: On or Around on schedule. Wanted to Prototype before end of quarter Mitigations: Side Load on load cell impact on integrity of device: Speak with Manufacturer or Build a support system DAQ/Bearing cost approval: Need approval or reduction in features Finalize design over Fall/Winter break to prepare for prototype 1/12/2022 MSD I 09045: Membrane Characterization Stand 7
Phase 3 Phase 2 Phase 1 1/12/2022 MSD I 09045: Membrane Characterization Stand 8
MSD II Milestones Week 1 Finalize design and order all parts Week 2 -3 Machining and Coding Week 4 Assembly Week 5 Initial Testing Week 6 -10 Revisions and Documentation 1/12/2022 MSD I 09045: Membrane Characterization Stand 9
Questions… 1/12/2022 MSD I 09045: Membrane Characterization Stand 10
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