Individual Testing Procedures

Jillian Kasun

Mr. Cuttrell and Ms. Green

Systems Engineering II

13 September 2016

Individual Testing Procedures

The subsystem of the animatronic stingray, the exterior cast, requires testing prior to the creation of the final solution. 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 skin must mimic the movement and appearance while preserving the inner subsystems. The designer and team members assess alternate solutions, developmental, preconstruction, and post construction stages with the direction of the mentors. Testing will take place in the Systems Engineering Lab on Sandy Hook, New Jersey to determine the flexibility, durability, weight, and movement of the cast.

                 (Battaglia, Sydney)

Test Objectives:

• Cast must not harm inner structure.
• Cast must simulate the size of an adult cownose stingray.
• Cast must have flexibility.
• Individual parts of cast must form a single, watertight structure with the application of an adhesive.

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 practicality of each solution.
1. Assess the advantages and disadvantages.
3. Analyze ability to interface the subsystems.
1. Review/modify dimensions.
4. After reviewing the accessibility of each design, select a final solution.
1. Make corrections in order to interface.
5. Discuss with mentor prior to proceeding.
1. Question the feasibility.

Cast 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. Meet with Sydney Battaglia (team member).

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.
1. Determine if a material bends or threatens to break the prototype of the internal structure.

     2.    Make adjustments to weight and materials if necessary.

Cast must stimulate the size of an adult cownose stingray.

Testing Type: Assessment

Testing Stage: Tertiary

State of Solution: Construction

Conditions Used:

• CAD Drawings/Model

• Stationary

Tools and Equipment: Survey, CAD drawings, ruler, pencil, clay, silicone, gelatin, latex

Procedures:

1. Construct prototype.

2. Measure the prototype.
1. Ensure the dimensions mimic an adult cownose stingray and allow the subsystems to interface.
1. Meet with team members.
2. Discuss the final product as a whole.
3. Make corrections to measurements if necessary.

Cast must have flexibility.

Testing Type: Assessment

Testing Stage: Quaternary

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, and pool

Procedures:

1. Submerge cast in the testing pool located in the Systems Engineering Lab.
2. Utilize hands to simulate undulating motion of the stingray’s wings.
1. Place hand underneath cast.
2. Bend upwards and return to resting position.
3. Repeat this motion.
4. Record the ease of motion.
5. Determine any flaws in the material.
1. Assess the pressure the material provides on the internal structure.

Individual parts of cast must form a single, watertight structure with the application of an adhesive.

Testing Type: Assessment

Testing Stage: Quaternary

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, 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. Consider different adhesives.
2. Determine if the model requires more or less material to connect the parts.

Apply results and feedback from testing to create final solution.

Testing Type: Validation/Comparison

Testing Stage: Quinary

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, and pool

Procedures:

1. Implement knowledge from testing.
2. Make amendments to design.
3. Construct final solution.
4. Validate measurements and ability to interface.
5. Eliminate flaws discovered in previous testing.
6. Combine subsystems to create a whole, functioning animatronic stingray.
7. Place final product in the pool located in the Systems Engineering Lab.
8. Assess ability to accurately portray movement of stingray.

Works Cited

Battaglia, Sydney. Systems Pool. 2014. Photograph. Sandy Hook, New Jersey.