P17080: Heart Pump and Circulatory System
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Subsystem Build & Test

Table of Contents

Review of Action Items

Review of Action Items

Review of Action Items

Accomplishments

Bill Of Materials

Updated BOM

Updated BOM

See Live Document Here: Updated BOM

Build Status

All aluminum plates have been machined. The drawings have been updated (see below). An additional ventricle was produced using the Dragon Skin silicone. Final assembly of the heart pump needs to be completed. Development of a custom O-ring for the compression seal was being perused. This method was stopped because the generated part could not provide an ideal seal. Silicone tape was used and provided the seal required. The LabVIEW sensor codes have all been generated and function within one program. Further progress will be made with LabVIEW to make it a user friendly interface for laboratory settings. Also to use the sensors to generate desired plots such as a P-v Loop. The electrical layout has also been determined.

Updated Drawings

See Live Drawings Here: Updated CAD Drawings

Heart Pump Drawings and Build

Machining Process

Machining Process

Ventricle Production

Ventricle Production

Heart Pump Parts

Heart Pump Parts

Current Heart Pump Status

Current Heart Pump Status

O-Ring Design

To generate the prototype seal for the camber an o-ring was made out of a 3-D printed mold and the silicone used to make the heart pump. This seal was insufficient and in the end silicone tape was used.

O-Ring Mold

O-Ring Mold

See Document Here: O-ring Mold Drawing

Updated LabVIEW Code

Updated LabVIEW Code

Updated LabVIEW Code

See LabVIEW document here: LabVIEW Combined

Electrical Box Layout

Electrical Box

Electrical Box

Testing and Results

See Updated Test Plans Here: Updated Detailed Test Plans

Flow Meter Testing

Flow Meter Testing Flowchart

Flow Meter Testing Flowchart

Flow Meter Testing Set-up

Flow Meter Testing Set-up

 Flow Meter Testing Results

Flow Meter Testing Results

See Raw Data Here: Flow Meter Testing Raw Data

Flow Meter Test Conclusions

Using the data above the conversion from frequency output to a L/min output was generated. This is hard coded into LabVIEW to prevent confusion of students while conducting the lab. The error was calculated using the standard deviation of the data.

Solenoid Heat Testing

Solenoid Testing Flowchart

Solenoid Testing Flowchart

Solenoid Testing Set-up (Note: displayed temperature in Fahrenheit)

Solenoid Testing Set-up (Note: displayed temperature in Fahrenheit)

Solenoid Testing Connection

Solenoid Testing Connection

Solenoid Testing Results

Solenoid Testing Results

See Raw Data Here: Solenoid Heat Testing Raw Data

Solenoid Heat Testing Conclusions

The Solenoid did not reach close to the maximum allowable temperatures of the other devices in the box. Additional heat testing will be done with all parts in the box to examine the effects of confinement on the generated heat.

Problem Matrix

Problem Matrix

Problem Matrix

Problem Matrix

Problem Matrix

Problem Matrix Status

Problem Matrix Status

See Live Document Here: Updated Problem Matrix

Tank Proposal

During testing of the tanks, cracks in the plastic around the connections as well as flexing of the base was observed. This is because the current tanks are not rated to be pressurized. In order to model preload and compliance the tanks need to be more robust. However, the current budget does not allow for the purchasing of material to make tanks that can withstand the desired pressures. The following drawings and bill of materials have been proposed to increase the budget.

Proposed Tank BOM

Proposed Tank BOM

Proposed Tank Assembly

Proposed Tank Assembly

Proposed Tank BOM

Proposed Tank BOM

Proposed Tank BOM

Proposed Tank BOM

See Live Drawings Here: Proposed Tank

Schedule Review

Original Schedule

Original Schedule

New Schedule

New Schedule

See Live Document Here: Updated Schedule

Three Week Plans

Susan

Kevan

Mike

Henry

Blake

Notes From Design Review


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