Tuesday, September 13, 2016

Group Testing Procedures

Battaglia, Kasun, Konecny
John Cuttrell/Wendy Green
Systems Engineering II
13 September 2016
Group Testing Procedures
The system of the animatronic stingray requires individual testing prior to the creation of the final product.
The animatronic’s programming must control the onboard electronics. The Arduino controller must store and execute the code that operates the motors. The movement of the animatronic, controlled by the motors, must mimic that of an adult cownose ray. The electronics must interface with the structure to correctly manipulate the the wings the animatronic, and the motors must move the structure in way that correctly resembles a ray and enables the animatronic to move throughout the water column.
The structure must support the weight of the synthetic skin as well as aid in the production of or manually create the fluid flapping motion to resemble that of a real adult cownose ray. The structure must also include watertight housing for the programmer to place the circuit boards, motors, and batteries in to ensure the animatronic will function underwater.
The outer shell must mimic the texture, color, size, and movement of an adult cownose stingray. The cast’s dimensions include 28 inches in length and 22 inches in width. The cast must have minimal weight to prevent the internal structure from collapsing. The simulated, watertight skin protects the internal structure and programming system. The material must have the flexibility to undulate with the movement of the internal structure.
In order to create a realistic model of an adult cownose stingray, the product must mimic the movement and appearance while preserving the inner subsystems. Team members analyze alternate solutions, developmental, preconstruction, and post construction stages with the guidance of the mentors. Testing will take place in the Systems Engineering Lab on Sandy Hook, New Jersey to assess the merging of the subsystems into the final product.
(Battaglia, Sydney)

systems pool.jpg


(Laboratory Pool)


Test Objectives:
  • Ensure subsystems interface.
  • Electronics must manipulate the structure to move the animatronic.
  • Structure must have a flexible quality to create realistic motion.
  • Structure must have a watertight seal to ensure functionality underwater.
  • Outer skin must not harm inner structure.
  • Outer skin must protect inner structure and programming.
  • Create a final product by combining individual parts.


Ensure subsystems interface.
Testing Type: Exploratory
Testing Stage: Preliminary
State of the Solution: Alternate Solutions/Developmental
Conditions Used:
  • CAD Drawings
Tools and Equipment: Matrix, survey, ruler, pencil, and CAD drawings
Procedures:
  1. Meet with group to present Alternate Solutions.
  2. Determine feasibility of each solution.
    1. Assess the pros and cons.
  3. Analyze ability to interface the subsystems.
    1. Review/modify dimensions.
  4. Select a final solution based on ability of fusion.
    1. Make corrections in order to interface.
  5. Review with mentor prior to proceeding.


Structure must have a flexible quality to create realistic motion.
Testing Type: Assessment
Testing Stage: Preliminary
State of Solution: Pre-construction
Conditions Used:
  • CAD Drawings/Model
Tools and Equipment Required: Different Materials, CAD Designs, Pencil
Procedures:
  1. Gather different materials.
  2. Bend each material and gauge the flexibility.
    1. Avoid brittle materials and overly flexible materials.
  3. Create a matrix to compare each material.
  4. Determine the materials most fit for the project requirements.
Structure must have a watertight seal to ensure functionality underwater.
Testing Type: Assessment
Testing Stage: Preliminary
State of Solution: Pre-construction
Conditions: CAD Drawings/Model
Tools and Equipment Required: Different Materials, CAD Designs, Pencil, Spring Scale, Weights
Procedures:
  1. Gather materials of the desired thickness and flexibility.
  2. Meet with Jillian Kasun, team member tasked with creating the synthetic skin, and determine the weight the structure will need to hold using spring scale.
  3. Place weights equivalent to the necessary weight on different materials of the desired thickness.
  4. Record the strain placed on each material, and determine the strongest material.
Outer skin must not harm inner structure.
Testing Type: Assessment
Testing Stage: Secondary
State of Solution: Preconstruction
Conditions Used:
  • CAD Drawings/Model
  • Stationary
Tools and Equipment: Matrix, survey, ruler, pencil, CAD drawings, scale, clay, silicone, latex, urethane, epoxy, intended material for the internal structure
Procedures:
  1. Team Members Sydney and Jillian meet.
    1. Determine if the internal structure has the ability to withstand the cast’s weight.
      1. Assess the durability of the inner structure’s material.
        1. Place clay, silicone, latex, urethane, and epoxy on intended material for the internal structure.
        2. Record the effect of each material.
     2.    Make adjustments to weight and materials if necessary.



Electronics must manipulate the structure to move the animatronic.
Testing Type: Assessment
Testing Stage: Secondary
State of the Solution: Post-Construction
Conditions Used:
  • CAD Drawings/Model
  • On/Moving
  • Wet/Submerged
Tools and Equipment:
  • Matrix, survey, ruler, pencil, CAD drawings, electrical diagrams, motors, batteries, controller, pool/water
Procedures:
  1. Secure electrical components to internal structure.
    1. Place batteries, controller, and wiring inside water-tight housing.
  2. Connect motors to electronics according to electrical diagrams.
  3. Connect the motors to the structure according to CAD drawings.
  4. Upload programming to controller to activate motors.
  5. Submerge animatronic.
  6. Measure the move-time of the motors.
  7. Measure energy consumption of the motors.
  8. Evaluate ability to move structure in fluid movements and correct any design flaws.
Outer skin must protect inner structure and programming.
Testing Type: Assessment
Testing Stage: Tertiary
State of Solution: Post-Construction
Conditions Used:
  • CAD Drawings/Model
  • Stationary
  • Wet
    • Water: 70 degrees-75 degrees Fahrenheit
Tools and Equipment: Survey, CAD drawings, prototype of skin, adhesive, and pool
Procedures:
  1. Use adhesive to connect the separate parts of the cast.
  2. Submerge the cast in testing pool located in the Systems Engineering Lab.
  3. Observe water damage or leakage after twenty minutes.
    1. Water will ruin the centralized programming system.
    2. Consider different adhesives.
    3. Determine if the model requires more or less material to connect the parts.



Create a final product by combining individual parts.
Testing Type: Validation/Comparison
Testing Stage: Quaternary
State of Solution: Construction/Post Construction
Conditions Used: CAD Drawings/Model
  • Stationary
  • Wet
    • Water: 70 degrees-75 degrees Fahrenheit
Tools and Equipment: Survey, CAD drawings, prototype, pencil, ruler, clay, silicone, gelatin, latex, flexible material, drill, screws, glue, electrical diagrams, wires, controller/circuit boards, batteries, and pool
Procedures:
  1. Apply knowledge from individual and group testing.
    1. Make corrections to individual and overall design.
    2. Validate measurements and ability to interface.
    3. Eliminate flaws discovered in previous testing.
  2. Construct final solution.
    1. Create subsystems.
    2. Combine subsystems to create the final animatronic stingray.
      1. Ensure watertightness.
  3. Place final product in the pool located in the Systems Engineering Lab.
  4. Assess ability to accurately portray movement and appearance of the cownose stingray.
Works Cited
Battaglia, Sydney. Systems Pool. 2014. Photograph. Sandy Hook, New Jersey.

Laboratory Pool. N.d. Gigapica.geenstijl.nl. Web. 5 Sept. 2016.

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