Browse > Article
http://dx.doi.org/10.5139/JKSAS.2018.46.1.18

Development and Assessment of Crashworthy Composite Subfloor for Rotorcrafts  

Park, Ill Kyung (Aircraft Structures Research Team, Korea Aerospace Research Institute)
Lim, Joo Sup (Aircraft Structures Research Team, Korea Aerospace Research Institute)
Kim, Sung Joon (Aircraft Structures Research Team, Korea Aerospace Research Institute)
Kim, Tae-Uk (Aircraft Structures Research Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.1, 2018 , pp. 18-31 More about this Journal
Abstract
Rotorcrafts have more severe crashworthiness conditions than fixed wing aircraft owing to VTOL and hovering. Recently, with the increasing demand for highly efficient transportation system, application of composite materials to aircraft structures is increasing. However, due to the characteristics of composite materials that are susceptible to impact and crash, demand to prove the crashworthiness of composite structures is also increasing. The purpose of present study is to derive the structural concept of composite subfloor for rotorcrafts and verify it. In order to design a crashworthy composite subfloor, the conceptual design of the testbed helicopter for the demonstration and the derivation of energy absorbing requirement were carried out, and the composite energy absorber was designed and verified. Finally, the testbed for the demonstration of a crashworthy composite structure was fabricated, and performed free drop test. It was confirmed that the test results meet the criteria for ensuring occupant survivability.
Keywords
Composite Structure; Crashworthiness; Composite Energy Absorber; Free Drop Test; Rotorcraft;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Marsh, G., "Airbus takes on Boeing with Reinforced Plastic A350 XWB," Reinforced Composite, Vol. 51, No. 11, 2007, pp.26-29.
2 Weber, T. A., and Ruff-Stahl, H. K., "Advances in Composite Manufacturing of Helicopter Parts," International Journal of Aviation, Aeronautics, and Aerospace, Vol. 4, No. 1, 2017.
3 Niu, Michael C. Y., "Composite Airframe Structures," Conmilit Press Ltd., Hong Kong, 1992, pp. 18-19.
4 "Aircraft Crash Survival Design Guide," USAAVSCOM-TR-89-D-22A, Simula, Inc., Tempe, Arizona, 1989.
5 Fox, R. G., "Helicopter Crashworthiness - Part two," Flight Safety Foundation and Helicopter Safety, Vol.16, No. 1, 1990, pp.1-6.
6 Jackson, K. E., Boitnott, R. L., Fasanella, E. L., Jones, L. E, and Lyle, K. H., "A History of Full-Scale Aircraft and Rotorcraft Crash Testing and Simulation at NASA Lengley Research Center," NASA TM 20040191337, 2004.
7 Singley, G. T., "Full-Scale Crash Testing of a CH-47C Helicopter," Proceedings of the 32nd V/STOL Forum of the American Helicopter Society, Washington, D.C., 1976.
8 Perschbacher, J. P., Clarke, C., Furnes, K., and Carnell, B., "Advanced Composite Airframe Program (ACAP) Militarization Test and Evaluation (MT&E) Volume V - Airframe Drop Test," USAATCOM TR 88-D-22E, 1996.
9 Majamaki, J., "Impact Simulations of a Composite Helicopter Structure with MSC.Dytran," MSC Wordwide Aerospace Conference & Technology Showcase, Toulouse, France, 2002.
10 Littell, J. D., Jackson, K. E., Annett, M. S., Seal, M. D., and Fasanella, E. L., "The Development of Two Composite Energy Absorbers for Use in a Transport Rotorcraft Airframe Crash Testbed (TRACT 2) Full-Scale Crash Test," 71th AHS Annual Forum, Virginia Beach, Virginia, 2015.
11 Prouty, R. W., "Helicopter Performance, Stability, and Control," Krieger Publishing Company, Inc., 1995, pp. 663-665.
12 "Light Fixed and Rotary-Wing Aircraft Crash Resistance," MIL-STD-1290A, Department of Defense, Washington DC, 1988.
13 Hwang, J. S., and Lee, S. M., "Analysis of Revised Helicopter Crashworthiness Criteria," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 42, No. 5, 2014, pp. 415-422.   DOI
14 Wade, B., and Feraboli, P., "LS-DYNA Mat54 Modeling of the Axial Crushing of Composite Fabric Channel and Corrugated Section Specimens," FAA JAMS 2014 Technical Review Meeting, Seattle, WA, 2014.
15 "14 CFR Part 29, Airworthiness Standards: Transport Category Rotorcraft," Federal Aviation Administration, April, 2016.
16 "49 CFR Part 572, Anthropomorphic Test Devices," National Highway Traffic Safety Administration, January, 2008.
17 "Performance Standard for Seats in Civil Rotorcraft, Transport Aircraft, and General Aviation Aircraft," Society of Automotive Engineeing Aerospace Standard SAE AS8049 Rev B, 2005.
18 Fasanella, E. L., and Jackson, K. E., "Best Practices for Crash Modeling and Simulation," NASA TM 2002211944, 2004.