P17044: Human Tremor Mitigation
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Integrated System Build & Test

Table of Contents

Team Vision for Integrated System Build & Test Phase

Action Items From Previous Phase

Project Plan Update

Link to Document here

Goals for Week 8

Final Layout of Beta

  1. Are we going to use an X layout or a + layout for brakes? (Completed)
  2. How will we attach brakes so they do not slide when brakes are active? (Completed)
  3. What type of battery will we use? (Completed)
  4. Complete initial Beta build. (In Progress)
  5. Complete Bet CAD model. (Finishing)

Alpha Testing

  1. General Testing (Completed)
  2. How will the brakes perform in different orientations (compare to normal orientations)? (Completed)
  3. Engineering Requirements Testing. (In Progress)

Logistical

  1. Where are we going to purchase products supplied by Amazon? (Completed)

Electrical Safety

In order to examine the safety of the device when being worn by the patient, an assessment was written with a focus on 3 different parameters; Thermal Exposure, Chemical Stability, and Electrical Exposure. The following document details the topics covered and gives an argument for the devices safety in these areas.

here.

To evaluate the thermal safety of the device the system was monitored to determine the thermal emitters in the system. It was determined that the Magnet was the only thermal emitter.

A test was then performed to examine the devices temperature over time in a worst case scenario. The image below shows the Alpha system with a temperature sensor attached to the magnet. To simulate worst case scenario, the magnets were powered at full power (12v) and ran intermittently ith an on time of 1.5s and period of 3s. The test was performed for an hour. The results of this test are demonstrated in the paper on Electrical safety shown above.

Temp Sensor Pic

Temp Sensor Pic

Build And Test

Brake Mark III Model

Brake Mark III Model

Link to Test Results here
Brake Mark IV

Brake Mark IV

Changes made:
Molded Force Spoilers

Molded Force Spoilers

Link to document here
Improved Wearable Pivot

Improved Wearable Pivot


New ribbing and pattern

New ribbing and pattern

New Ribbing on Beta

New Ribbing on Beta

Beta Build of the glove

Beta Build of the glove

Beta Build Exploded

Beta Build Exploded

Beta Construction Steps

  1. Attach Ribbing (In Process)
  2. Attach Mechanical System (Printing Parts)
  3. Attach Electrical System (Have Electronics, Planning Layout)

Test Results Summary

Engineering Requirements With Test Results

Engineering Requirements With Test Results

Link to Document here

Link to Test Results here

Test Plan Timeline:

Alpha
Beta

Bill of Materials

Parts Queue

Parts Queue

Link to Document here

Bill of Materials

Bill of Materials

Link to Document here

Bill of Materials

Bill of Materials

Link to Document here

Risk and Problem Tracking

Technical Risks

Technical Risks

Logistical Risks

Logistical Risks

Link to Document here

Problem Tracking

Problem Tracking

Link to Document here

Functional Demo Materials

Link to Review 3/32 Pre-Read here

Link to Tuesday 3/21Meeting Plan here

Plans for next phase

Individual Plans

Ramy

Sarah

Jamey

Nick

Pete

Key Milestones for Next Phase

Beta

  1. Complete initial Beta build.
  2. Complete Beta CAD model.
  3. Start Beta testing (Start with non control algorithm dependent tests, continue to control algorithm tests if enough progress is made)
  4. Adjust control algorithm to function with 4 Electromagnets and 2 9DOFS (and either temp sensors or stretch sensors)

Alpha Testing

  1. How will the brakes perform in different orientations? (compare to normal orientations)
  2. Finish Engineering Requirements Testing.
  3. Do Stretch Sensors add enough feedback to justify not using temperature sensors?

Logistical

  1. Create a live 3-D printing schedule to ensure constant printing.
  2. Establish another meeting time that entire team is present.

Imagine

  1. Where can we get a mannequin hand for display?
  2. What type of fixtures do we need to demonstrate key subsystems of device?

Paper Work

  1. Break paper down into sub-sub sections and assign each team member a sub-section.
  2. Create soft deadlines for completion of sub-sections.
  3. Create poster for Imagine (look at old posters for ideas / layout)

Link to Updated Gantt Chart here

Imagine Outlook

Link to live Imagine Vision here

Link to Imagine Proposal Description here

Link to Destler's Challenge Submission here

Link to IRB Information Update here

Link to IRB Electrical Safety Update here

Link to IRB Submission (.zip) here


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