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EQUILIBRATE SYSTEM UPGRADE Systems Design Review

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Group Members David Lahn: Project Manager/Camera Structure Design Sado Borcilo: Camera Structure Design Diana Rodriguez: Foot Plate Track Design Natalie Ferrari: Foot Plate Analysis and Design

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1. Customer Needs Review 2. Separate into Components 3. Concept Proposals 4. System Concept Proposal 5. Set Target Specifications 6. Proposed Schedule Systems Design Review Agenda

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Function Decomposition

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1. Foot Plate Analysis and Design 2. Foot Plate Track Design 3. Camera Structure Design Upgrades to Improve System

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Criteria Current Design Proposed Designs Compilation Foot Plate Analysis and Design

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Foot Plate Criteria Function: 1. Support weight of subject a. 1000 lbs (500 lbs per plate) 2. Maintain similar performance to current a. Deflection b. Maximum Stress

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Boundary Conditions and Force Top Bottom 3.95 2.95 1 diameter 0.75 from top 0.75 from side

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Current Foot Plate Boundary Conditions: UY = 0 in 3 corners, UX, UY, UZ = 0 in 1 corner Force: -125 lbs in 4 locations around center point Max deflection: 0.027 in Max stress: 3629 psi Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.375 in Density of 6061-T6: 0.0975 lb/in^3 Weight = 4.35 lbs Maximum Stress = 7,316 psi Maximum Deflection = 0.0185 in

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Foot Plate Designs Possible Design Change Avenues: 1. Thickness a. Aluminum b. Reduce to 0.25 from 0.375 2. Material a. Steel Alloy b. Use thickness of 0.125 3. Geometry a. Drill out Hole Pattern b. Mill out Material (through 0.25) c. Mill out Material (through all)

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Change Thickness Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.25 in Density of 6061-T6: 0.0975 lb/in^3 Weight = 2.90 lbs Maximum Stress = 15,861 psi Maximum Deflection = 0.0594 in

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Change Material: ASTM A36 Steel Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.125 in Density of ASTM A36: 0.28 lb/in^3 Weight = 4.21 lbs Maximum Stress = 60,327 psi Maximum Deflection = 0.1629 in

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Change Geometry: Drill out Holes Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.375 in Density of 6061-T6: 0.0975 lb/in^3 Weight = 4.15 lbs Maximum Stress = 8,377psi Maximum Deflection = 0.0199 in

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Change Geometry: Mill out Material (Through 0.25) Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.375 in Density of 6061-T6: 0.0975 lb/in^3 Weight = 2.68 lbs Maximum Stress = 14,358psi Maximum Deflection = 0.0383 in

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Change Geometry: Mill out Material (Through All) Footprint Dimensions: 14.95 in x 7.95 in Thickness: 0.375 in Density of 6061-T6: 0.0975 lb/in^3 Weight = 1.85 lbs Maximum Stress = 24,305psi Maximum Deflection = 0.0753 in

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Analysis Comparison Moving Forward: 1. Optimize drill and mill designs, determine best configuration 2. Source pricing for each method 3. Make final decision on plate design

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Required Functions Enable West/East (W/E) Adjustment of Foot Plates. Allow User to Access Foot Plates Maintain Alignment of Foot Plates Proposed Concept Foot Plate Track Design

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Proposed Design Allow W/E Adjustment UnextendedFully Extended Note: Movement is limited by width of foot plate. W/E track is perpendicular to the North/South (N/S) track. W/E track enters side of foot plate base at height to allow base to sit on the ground to protect against vertical bending. W/E movement is limited by width of foot plate base. Two W/E tracks are used to protect against horizontally. Will probably add less than 1 pound of additional weight.

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Split into required functions Maintain Camera Orientation Maintain Orientation Layouts Maintain and adjust Camera Height Camera structure portability Maintain Camera Stability Camera Structure Selected Concepts Compilation Camera Structure Design

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Maintain Camera Orientation Function: Maintain Camera X and Y position from the footpad across multiple set ups. Priorities: minimize human error, weight.

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Maintain Orientation Layouts Function: Maintain proper camera locations Priorities: minimize material (weight), aesthetics

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Maintain and Adjust Camera Height Function: Maintain and adjust Camera Z position Priorities: minimize human error, weight.

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Camera Structure Portability Function: Allow for structure portability Must disassemble into 61 x 48x 8 carrying case Priorities: minimize human error, weight.

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Maintain Camera Stability Function: Allow for Camera Stability Priorities: Minimize Camera Movement, Minimize weight

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Solidworks Model

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Comparison of Proposed vs. current

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Specifications Setting Discussion

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1/20 Design Review 1/23 Concept Selection 1/27 System Design Completion 2/3 Material Sourcing Completion 2/17 Detailed Design Completion Proposed Schedule

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Discussion/Questions?