Browse > Article
http://dx.doi.org/10.5139/JKSAS.2009.37.2.181

A Study on the Helicopter Composite Blade Impact Loads  

Lee, Hyun-Cheol (한국항공우주산업(주))
Jeon, Boo-Il (한국항공우주산업(주))
Moon, Jang-Soo (한국항공우주산업(주))
Yee, Seok-June (한국항공우주산업(주))
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.2, 2009 , pp. 181-186 More about this Journal
Abstract
The objective of this study is ensuring safety of cabin when the blade impacts into a obstacle by verifying safety of the rotor mast and the transmission using impact loads calculated from the simulation. The rotor mast shall not fail and the transmission shall not be displaced into occupiable space when the main rotor composite blade impact into a 8 inch rigid cylinder in diameter on the outer 10% of the blade at operational rotor speed. To calculate the reaction loads at the spherical bearing and lead-lag damper, blade impact analysis was performed with FE model consist of composite blade, tree(or rigid cylinder) using elastic-plastic with damage material and several contact surfaces which were created to describe a progress of actual failure. Also, the reaction loads were investigated in change of blade rotation speed and pitch angle.
Keywords
Blade impact; Composite blade; Elastic-plastic with damage material;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Altair Engineering Incorp., “Radioss Starter Manual 4.4 version", Revision 2, 2004, pp. 142.
2 Mecalog SARL, "Radioss Theory Manual", 2006, pp. 298.
3 AAIU, "Aircraft Accident Report", AAIU, Report No. 2003/ 003, 2003.
4 Alan Dobyns, Frank Federici & Robert Young, "Bird Strike Analysis and Test of a Spinning 5-92 Tail Rotor", American Helicopter Society, 57th Annual Forum, 2001.
5 문창호, 우종호, 오태식, 황천호, 박찬익, “항공기용 Windshield의 조류충돌 저항성 평가”, 한국항공우주학회지, 제24권, 제2호, 1996, pp. 95-105.
6 Altair Engineering Incorp., "Radioss Starter Manual 4.4 version", Revision 2, 2004, pp. 301.
7 Department of Defense of USA "Military Standard Light Fixed and Rotary-Wing Aircraft Crash Resistance", MIL-STD-1290A, Sep . 1988, pp. 10.