1、 26 1 2 2009 MActa Materiae Compositae Sinica Vol.26 No.1 February 2009cI|:1000-3851(2009)01-0113-05l :2007-12-25; l :2008-03-12 “:SE$ “(2006CB600906)YT: ,p V, q,p V 3 =,Z_:C/C 、 、 V E-mail:C/C f 雷宝灵, 易茂中, 徐惠娟( 2vx 8SE L i, 410083)K 1: C/C f(B757) V V 4V5,KZE8 L s。 . , Ks、HHqFV。YV_) V M,4VCs 。TV :“
2、d ? Hq/W )46 s HrK659; 548.5 s HrK,V5 6,W Kv,6K y, Q, Kl。1 L _T, z, Lr。1oM: C/C ; ;Kms |: TB332 DS :A3-D temperature field for C/C composite braking discsLEI Baoling, YI Maozhong, XU Huijuan(State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China)Abstract: The tem
3、perature fields of C/C composites braking discs (B757)were studied by the finite elementmethod and experiment, as they were difficult to measure and reveal during the braking process.The loads,boundary conditions and loading processes in the finite element analysis of temperatures were discussed acc
4、ording tothe heat transfer theory and braking principle of the braking discs.The postprocessing of simulation describes thetemperature fields of braking discs during braking clearly and visually.The results show that the temperature of themidial stator rises to the maximum 659at 46 s;the temperature
5、 of the pressure bearing disk and pressurizing diskrises to the maximum at 48.5 s and the temperature of each test point increases firstly and then decreases in thewhole braking process, while the midial stator endures the biggest thermal load, followed by the pressure bearingdisk and the pressurizi
6、ng disk endures the least thermal load.The simulation results are consistent with theexperiment data, which verifies the validity of the temperature field results.Keywords: C/C composite;braking discs;temperature field;temperature test;finite elementC/C 、 p 、 ?、/ , , U,u .t b C/C J. , 2002,12(1):101
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