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http://dx.doi.org/10.5139/JKSAS.2009.37.7.653

A Study on the prediction of braking time for rotor brake system considering the friction coefficient variation with temperature  

Choi, Jang-Hun (인하대학교 항공우주공학과 대학원)
Oh, Min-Hwan (인하대학교 항공우주공학과 대학원)
Cho, Jin-Yeon (인하대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.7, 2009 , pp. 653-660 More about this Journal
Abstract
A helicopter rotor brake system stops or reduces the speed of the rotor by transforming the kinetic energy into the heat energy. The frictionally generated heat has a considerable effect on the frictional property of material itself and causes the change of the friction coefficient which may affect the breaking time significantly. In this paper, to take into account the effect of change of friction coefficient according to temperature on braking time, thermo-mechanically coupled analysis is carried out by commercial software ABAQUS. Further, simple theoretical equation is derived considering thermo-mechanical behaviors. The predicted braking times both from theoretical and numerical methods are compared and validity of proposed theoretical equation is investigated.
Keywords
Braking time; Thermo-mechanical behavior; Rotor brake system; Friction coefficient;
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1 고길주, 조민형, 장호, “마찰재에 함유된 금속섬유와 마찰 특성의 연관관계”, Journal of the KSTLE, Vol. 17 No. 4, Aug. 2001, pp. 267-275.   과학기술학회마을
2 A. E. Anderson, R. A. Knapp, "Hot spotting in automotive friction systems", Wear,Vol. 135, 1990, pp. 319-337   DOI   ScienceOn
3 Kwangjin Lee, "Frictionally excited thermoelastic instability in automotive drum brakes", Journal of Tribology, Vol. 122 Issue 4, Oct 2000, pp. 849-855   DOI   ScienceOn
4 Chongdu Cho, Sooick Ahn, "Transient thermoelastic analysis of disk brake using the fast fourier transform and finite element method", Journal of Thermal Stresses, Vol. 25,2002, pp. 215-243.   DOI
5 Didier Majcherczak, Philippe Dufenoy, Moussa Nait-Abdelaziz, "Third body Influence on thermal friction contact problems : application to braking", Journal of Tribology, Vol. 127, No.1, Jan 2005, pp. 89-95   DOI   ScienceOn
6 이재한, 김명구, 조종두, 박창호, 이상교, “디스크 브레이크 임계속도에 의한 Hot Spot Analysis", 대학기계학회 추계 학술대회, 2005, pp. 2011-2016   과학기술학회마을
7 ABAQUS Analysis user's manual, version 6.8.
8 최장훈, 오민환, 조진연, 김상범, 정은성, 장기원, “마찰을 고려한 로터 브레이크 시스템의 제동시간 예측”, 한국항공우주학회 추계 학술대회, 2007, pp. 903-906
9 Ji-Hoon Choi, In Lee, "Finite element analysis of transient thermoelastic behaviors in disk brakes", Wear, 257, 2004, pp. 47-58   DOI   ScienceOn
10 Abd Rahim Abu Bakar, Huajiang Ouyang, "Prediction of disc brake contact pressure distributions by finite element analysis", Journal Teknologi, 43(A) Dis., 2005, pp. 21-36