材料力學(xué)第六版PPT-第三章 扭轉(zhuǎn)

1、 從動(dòng)輪從動(dòng)輪主動(dòng)輪主動(dòng)輪從動(dòng)輪從動(dòng)輪 /kWeN mr min9 549PMne2e1e3e0 xMeMT eeMexnnMeMexMex /kwer min9 549pMnmN6366mN5 .4774mN159154e3e2e1e MMMM 0023e2e TMMMx mN95493e2e2 MMTmN5 .47742e1 MTxMe2Me3T2Me21T133Me4Me1Me3Me2Me2mN5 .47742e1 MTmN63664e3 MTmN9549max T0101r dxxMeMedx ABDC () dd2AAA rrArrT 22 rT 0 yF. 00 xzFMzyxd)

2、dd( l lr TO lrrT 22 G )1(2 EG 變形幾何關(guān)系變形幾何關(guān)系物理關(guān)系物理關(guān)系靜力關(guān)系靜力關(guān)系 觀察變形觀察變形 提出假設(shè)提出假設(shè)變形的分布規(guī)律變形的分布規(guī)律應(yīng)力的分布規(guī)律應(yīng)力的分布規(guī)律建立公式建立公式deformationgeometricrelation Distribution regularity of deformationDistribution regularity of stressEstablish the formulaExamine the deformationthen propose the hypothesis physicalrelation

3、staticrelationabb12dtand GGxEGTTADGDG ) G xGGdd abATTDbdD12GG TAA d TAxGA dddTAxGA ddd2 p2dIAA pddGITx PIT max tmaxppmaxmaxWTITIT maxpt IW dO)d(2d A32d2d42032pdAIdA 162/32/34maxptdddIW dODdd32)1(44p DI)1(1643t DW其中其中Dd M1M2ABCllMe1Me2ABCll1Me2CT12Me2CMe1BT2 4kNm2kNm+_T maxtmaxmaxWT M1M2ABCllMPa5 .34

4、)1(1643max DT maxtmaxmax WTtmax WTmaxt TW tmax WT ABCMeAMeBMeC22 14 +_MPa84.6416/ )12. 0(102216/33311t11max1 dTWTMPa3 .7116/ )1 . 0(101416/333222t2max2 dTWT2max1max ll(a)(b)2t2max1t1maxWTWT dd2D22t1tWTWT 16)1(16432312t1t DdWW()3341211616 dD 194. 18 . 0113412 dD512. 0)8 . 01(194. 1)1(4)(4222122221222

5、212 dDddDAA (pddGITx xGITllddp pTlGI () prad mTlGI max ()maxmaxprad mTGI D+Me2Me3Me1180)2(pepe GIaMGIaMMPa7 .69tmaxmax WT mkN292e M33. 2180)23(pepe GIaMGIaMCBBACA D+Me2Me3MeDd MeMe .20 934 dDDD34ptmm1006. 22/ DIWMPa1 .96tmaxmax WT().4454p17 83 10 mm32DI ./ maxmaxp1801 81mTGImkN98. 1e MTDd MeMeMPa1 .

6、9616/3maxmax dT 22mm17494 dA實(shí)實(shí)222mm5774)7176( 空空A329. 0174957712 AACMeabABlACBMeMeAMeB00eee MMMMBAxCMeabABlCMeabABlBCAC 1ppACT aM aGIGI e eA APeP2GIbMGIbTBBC baMMABee 0eee MMMBAlMaMlMbMBA/ee ACBMeMeAMeBMeMelABe0 xabMMMMBA ppabABaabbM lM lG IG I MeMeMelABMaMbppaaabbbG IMMG IpppaaaaabbG IMG IG Ipppbbb

7、aabbG IMG IG IMbMaMeBA MeMelAB(a )PRdF(a)RdPPQT(b)FSTFPF33tmax816/2/dFDdFDWT 2SFDTFF 33max88)615. 04414(dFDkdFDccc ccckdDc615. 04414, max (a)RdPPQT(b)FSTFPF2p2T lGI 2FDT Dnl 2344F D nGd Ol ll ll lFW21 432421GdnDFF l l4343648GdnFRGdnFD l lnRGdnDGdc3434648 令令cF l l得得N2510)105 .59(64)1014)(1080)(1055(6

8、43439334 nRGdFl l5 . 81014)105 .59(2233 dRdDcMPa325Pa10325)1014(1025 .592510(817. 186333max dFDk .bhT3tIhb max max tmaxWT tGITl max 2thbW 3t31 hI 2t31 hW h/b1.01.21.52.02.53.04.06.08.010.00.2080.2190.2310.2460.2560.2670.2820.2990.3070.3130.3330.1410.1660.1960.2290.2490.2630.2810.2990.3070.3130.3331.0000.9300.8580.7960.7670.7530.7450.7430.7430.7430.743mkN4 MT229. 0246. 0 4833tm1028605. 01 . 0229. 0 hbI 3622tm106 .6105. 01 . 0246. 0 hbW MPa65106 .