工程力学(机电一体化技术)习题集(含答案)

西南科技大学成人、网络教育学院版权所有习题09004,填空题1,计算题,简答题,填空题2,填空题3等多种试题类型，其中，本习题集中有[填空题2,填空题3]等试题类型未进入。一、单选题1.）2.）3.4.5.6.7.F=F+F+F4123第1页共34页FFFF22F2F21111FFFF4444FFFF3333ABCD8.F+F=F+F2143FFFF22F2F21111FFFF4444FFFF3333ABCD9.F+F=F+F3142FFFF22F2F21111FFFF4444FFFF3333ABCD10.11.12.）13.14.15.16.第2页共34页17.18.19.20.21.22.力FpF。23.力FF24.234625.234626.234627.234628.(29.(30.(第3页共34页31.32.33.34.35.36.132437.38.）39.40.41.）42.）43.）第4页共34页44.）45.46.47.48.049.第12第23第34第1350.第12第23第34第1351.拉扭压弯52.24853.24854.24855.24856.24857.24858.第5页共34页2448859.260.61.062.1σbσsδσsδσsσbσ63.σsσ-1pσ-1σ64.pσ65.σ-1pσ66.σ-1p二、填空题167.。68.力F。69.力F70.力F71.。。72.73.74.75.76.77.78.79.80.81.82.83.。。第6页共34页84.85.86.87.88.dh。。。。。89.90.。。91.QM92.yθ93.θM。。94.95.96.。97.98.99.100.101.。102.103.。三、计算题104.GECAGDE105.σσ、强第7页共34页BAB°WC106.和σ，2杆σCB°A°CG107.第8页共34页ABC108.，PPPABDτθABCD109.σIWZZ点B。qCBA110.σW。ZqCABD111.σB第9页共34页CA°BG112.，FFl2σBACBmGFF221113.A和OαOA第10页共34页BCAmm052O114.QBP?°ADQCPB115.τσ]bs。第11页共34页tPPt2td116.tPσm09υ117.ODWW12laAOBW2W1DC118.2第12页共34页PPP119.PδP＝120.mm12m5.1002υυm1m5P.1121.d，d＝，dδ123＝，d＝，d＝．材料的许用应力[τ4541235TT122.TI74z03ADB061241y第13页共34页123.σ。bb2124.υ130125.0126.σP，HPPP127.P1为P2第14页共34页xP2aP1Hzy四、简答题128.129.130.131.132.133.134.135.五、填空题2（略）……六、填空题3（略）……第15页共34页答案一、单选题1.D2.D3.C4.C5.B6.D7.C8.D9.B10.C11.B12.A13.C14.A15.B16.B17.A18.B19.D20.C21.A22.C23.C24.A25.B26.D27.B28.A29.B第16页共34页30.C31.C32.D33.A34.B35.A36.B37.A38.A39.C40.D41.A42.B43.B44.D45.D46.D47.B48.B49.A50.A51.D52.B53.B54.D55.C56.C57.D58.D59.B60.C61.A62.C63.B64.C65.D66.A第17页共34页二、填空题167.68.°69.70.71.72.73.74.75.76.77.278.379.180.681.382.383.284.85.86.87.88.89.90.91.92.93.94.正95.96.97.98.499.4100.101.102.103.-1第18页共34页三、计算题104.GFD对圆筒：X0:Fcos45Fcos450XADEY0:Fsin45Fsin45G0GD对整体：X0:X0EYYACAY0:YYG0ACm0:Y600G3000A解得：CFFkNDEXYYkNAAC105.NNW第19页共34页平衡方程：X0:Ncos30N0BCABY0:Nsin30W0BC强度条件：AB杆：NABAABAABBC杆：NBC解得：BCBCtan3069.4WWAkNkNW36kNmaxABABsin3036ABCBC106.平衡方程：X0:Nsin30Nsin450CBCAY0:Ncos30Ncos45G0CBCA强度条件：A杆：NACACAACBC杆：NCB解得：CBCBcos15sin3038.6WWAkNW38.6kNmaxACACcos15sin4543.7AkNCBCBNNG107.①T第20页共34页②6TmaxW9MPa合格）16d3max③1.210800TlABABGI64.7710rad380104032AB340.8101000TlCBCBGI63.9810rad380104032CB34④计算中转角：AB0.8110rad3ACCB108.59.55NT9.550.16kNm0.32kNmAn300109.55300ANT9.55BCDnB309.55300NT9.550.96kNm0.48kNmnC159.55300NT9.55DnTmd6TWT33d3210180TGI32T6mmG44801011033109.第21页共34页lRq15115kN2Almq0.75l1511.522.52AW。Z106MMW314110mm3maxmax160WZZQMBql4y1,8EIql248EIql23yC2,6EIC241ql42yyylB384EI1C2C2①110.RR1210260kNABZ306MM10mmW33maxmax160WZZ第22页共34页QM①111.②求Bm0:Nsin304G20ABCX0XNcos300ABCY0YNsin30G0ABC求得：N48kN,X41.57kN,Y24kNBCAA③④NMAW41.63662Z143.9GQM第23页共34页①112.②B。m1.8,YY4.75kNAB③④M2TW22.8520.751.8263A12QMT①113.②对销钉：X0NcosNABcos0ACY0PNsinNABsin0AC对支架：m0Ncosa250N1500OABD③第24页共34页PNN5.122sin20NNcos20DN’NPXOYOND①114.杆②对齿条：X0Ncos30Q0AD对杆ACB：m0Nsin15100P4000CAB③BP?NQcos305.77kNADPNsin1540.37kNAD第25页共34页PQ12①115.②QP2d/4m22P215103d17.8mm③PAPdtbsbsbsP15103d9.4mmt28100bs④。d①116.第26页共34页x2zZ211HVTYY0.35kN12ZZ1.1kN②12m2.20.0450.099kNm③④等效弯矩：MMMTkNm22V2H强度计算：MMWd323Z32M320.21106d333041.5mm45mm)①117.杆②对齿条：Y0YW0B2对杆ACB：m0YaWl0OB1③W与W12第27页共34页aWW1l2XXBXOYBWY2OW1C①118.N②N2010320MPaA左右10000中③Nl20103lll10000.1mm200101000EA左右3l0中④llll0.2mm总左中右119.Y0:NNP0①上下NlNll上,l下②下下上上ll③④N上下0.32003N下100上l第28页共34页N150kN,N50kN上下NNm.1k0515m5NPk051-.1δ①120.②36T左31.86W73.3右3③31075060.00175radTlGI200109032左右341050060.00733rad200105032340.52④总左右①121.Nm1.55215.4②③第29页共34页1.5510（合格）TW623MPa7016max3T①122.Y37.5kN,Y112.5kNAB②③在maxmaxIz14.1677.32.59107max14.1142)62.59107max在6I2.597142)646.3z2.597Q123.梁的约束力：Y3.75kN,Y11.25kN①左右②第30页共34页③bMWbM(2b)6max2z6M63.751064b32.8mm35mm)334①124.YYkN左右②③5ql4Pl3查表y,y,384EI48EI中q中Pl35qlPyyy48EI8中中q中q6410005.2510330.037mm482091013034AA①125.②第31页共34页Pl2)5Pl348EI2查表yll2)6EI中PYl2Yl中33y,中3EI24EI中l3yyy2.5PY024EI中中P中中Y2.5P5kN中③YkN,m