The Riera Curve

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The Riera Curve
March,25th 2006
Ingo Brachmann
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Outline

• Approach and Iterative Algorithm
• Example F4 Aircraft Impact
• Advantages
• Boeing 767 Riera Curve

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Riera Approach (1968)
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Riera Iterative Algorithm
Assumptions
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F4 Aircraft Impact (Test Set-Up)
Phantom F4 aircraft
Target
vimpact 215 m/sec
MassTarget 469.0 t
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Test Procedure
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Mass-Distribution - F4 Aircraft
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Crushing Force Pc - F4 Aircraft
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Impact Velocity - F4 Aircraft
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Riera Curve F4 Aircraft Impact
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Advantages of Riera Approach

• Estimation of
• Mass Distribution (m) vs. Crushing Force (Pc)
• Velocity and Force Distribution during Impact
• Impact Damage w/o detailed aircraft model

Aircraft Model Reduction using Riera Curve
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Riera Curve Boeing 767
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Questions

• ?