ARP5765 Rev. A :
Analytical Methods for Aircraft Seat Design and Evaluation
Prasanna Bhonge10 August 2016
Background
AC 20-146: Methodology for Dynamic Seat Certification by Analysis for Use in Parts 23, 25, 27, & 29 Airplanes and Rotorcrafts
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Signed in May 2003; allows simulation results to be used in support of seat certification
Provides high-level guidance on the validation of seat models
Defines the conditions under which computer modeling can be used in support of certification
ARP 5765
Analytical Methods for Aircraft Seat Design and Evaluation
Objectives
TheprimaryobjectivesoftheARPistoprovide?
Quantitativemethodtomeasureandevaluatethedegreeofcorrelationbetweenamodelandaphysicaltest
Bestmodelingpracticestoimprovetheaccuracyandpredictabilityofseatanalyses
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Technical Specialist from
Seat Suppliers?Weber / Zodiac?IPECO?Recaro?Sicma?B/E Aerospace?ContourA/C Manufacturers?Airbus?Cessna ?Embraer?BombardierSoftware?FTSS?TASS?ESI?Altair?LSTCRegulatory?FAA?EASAAcademic?NIAR SAE ARP 5765 Rev A –Published in Nov. 2015.
1.SCOPE2.REFERENCES
3.4.5.6.7.V-ATD CALIBRATION
SYSTEM VERIFICATION AND VALIDATION (REV A)MODEL USE (REV A)
DOCUMENTATION (REV A)BEST PRACTICES
APPENDIX
A: METHODOLOGY FOR THE COMPARISON OF TEST AND SIMULATION WAVEFORMS B: FAA -NIAR DATA SET FOR THE HYBRID II ATDC: FAA -NIAR DATA SET FOR THE FAA HYBRID III ATDD: SAMPLE HYBRID II V-ATD CALIBRATION REPORT
E: SYSTEM VERIFICATION AND VALIDATION EXAMPLES (REV A)
3.0 v-ATD Calibration
Goal: define the process for ensuring that v-ATDs match the
anthropometry and kinematic performance of a physical ATD for aviation-specific applications
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Mass and Geometry
Component Response (head, chest, knee, etc.)Pelvic Shape Evaluation (cushion interaction)
Dynamic Response : evaluate ATD performance for aircraft conditions
FF 2pt belt: extreme flail envelopeFF 3pt belt: torso twistFF 4pt belt: submariningDownload: vertical crash vector
Test Condition 2 (14 CFR XX.562) 2pt, 3pt, 4pt restraint system
Test Condition 1 (14 CFR XX.562)
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