Scaled Blade Design and Rotor Progress Updates
Scaled Blade Design – Stress Analysis
Updated Stress Analysis was run with extreme loads
Max Torque:
TSR=6
79.32 RPM
Non-3D Corrected
Max Thrust:
TSR=15 198.32 RPM
Runaway Rotor
Scaled Blade Design – Stress Analysis
Extreme Loads considered are conservative ~ 78% reduction due
to test case adjustments
Red
:
Above max torque or below
0 torque
Green
:
Above design TSR
Yellow
:
Max Thrust within constraints
Scaled Blade Design – Stress Analysis
Updated Stress Analysis was run with extreme loads
Spud constrained on four sides
Scaled Blade Design – Stress Analysis
Carbon Compression Molded Blade Results
Stress Factor of Safety
1.15
Max Deflection:
86mm
Scaled Blade Design – Loft and Tooling Progress
Loft root design was updated to ease manufacturing
Root “Spud” was aligned with innermost section
Scale SLA tooling was
successfully trialed at NSWC
Scaled Rotor Design –Hub Progress
The Hub design has been updated to accommodate Spud
Aluminum Hub
SLA Inserts
This series of images showcases the stress analysis, extreme loads testing, loft and tooling progress, and hub design updates for a scaled blade design project. The stress analysis includes considerations for torque, thrust, and safety factors, with images detailing the results and adjustments made. Loft and tooling progress images highlight advancements in manufacturing ease and alignment, while the hub design progress focuses on accommodating necessary components. All information is labeled as company confidential and proprietary.
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Presentation Transcript
Scaled Blade Design Stress Analysis Updated Stress Analysis was run with extreme loads Max Torque: TSR=6 79.32 RPM Max Thrust: TSR=15 198.32 RPM Non-3D Corrected Runaway Rotor Company Confidential and Proprietary
Scaled Blade Design Stress Analysis Extreme Loads considered are conservative ~ 78% reduction due to test case adjustments Red: Above max torque or below 0 torque Green: Above design TSR Yellow: Max Thrust within constraints Nominal speed and TSR testing (1.6m/s, TSR=8) possible for froude scale up to 1/8.2 (250kW nameplate) High speed testing at nominal TSR (2.2m/s, TSR=8) possible for froude scale up to 1/11 (500kW nameplate) Runaway rotor testing (TSR=15) possible at nominal speed (1.6m/s) for froude scale up to 1/19.2 (1500kW nameplate) Company Confidential and Proprietary
Scaled Blade Design Stress Analysis Updated Stress Analysis was run with extreme loads Spud constrained on four sides Company Confidential and Proprietary
Scaled Blade Design Stress Analysis Carbon Compression Molded Blade Results Stress Factor of Safety 1.15 Max Deflection: 86mm Company Confidential and Proprietary
Scaled Blade Design Loft and Tooling Progress Loft root design was updated to ease manufacturing Scale SLA tooling was successfully trialed at NSWC Root Spud was aligned with innermost section Company Confidential and Proprietary
Scaled Rotor Design Hub Progress The Hub design has been updated to accommodate Spud SLA Inserts Aluminum Hub Company Confidential and Proprietary
