机械原理课后答案选解

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S[010j-2,3,…001(2)ஹbcdBFCefgBஹChiḄjklᢝn4Ḅ&'op!6qrsoptu6(x-x)2+(y-y)2=(x-x)2+(y-y)2j=2,3,...BiCiB1clBjCjBjCjvwxcdBFCefgKL▣tu(b)z(a)F(b){ᐭ&'optu}~ᑮ2345Ḅtu!=+஺(3)ஹᵫᨵ42345!n!~ᑮn-1tu!ᡠ᪀ᨬ5ᐵ஺(4)ஹᙠ23456ᔆᡭ1!Voh!᪀Ḅ2,A!L4a%᪀&'(ᦪᑖN6L2=(4|4)2+()%)k=«XBI-+(%1-Nci)0=J(*ci%1,)+(1-Ver)y.-yrrra=arctan—~—xci-XCl,6-1823¢£᤯ᩚ᪀ABCD,ᑭᵨ©ᩚªdPḄ¬®'᤬°±ᱏ!᝞⚪6-18¶ᡠ·஺-.AQ12.14,3.06),D(-7.10,-0.52),P/O,0),P(-4.07,-0.5),P(-2.10,3.05),^=131°,2312¼3=277.5°஺᪀wᔜ᪀CḄᩚ¾!¿ÀÁ᪀ÂᔲÄᙠ¢£஺

28+,-.X”y,x,y0ᑣ2345641,y,x,y(.ADDHiCIciᩚABḄKL▣6COS.-sin஺*x(l-cos^,)+ysin^,.4x[°JB=sin⊈cos%yA(l-cos0”)fsin0"i=2,3জ001©ᩚªdBFPfgBஹPhiḄjklᢝn4Ḅ&'op!6qrsoptu6(x—x)+(y—ypi)2—(x—x)2+(y—y)2i—2,3ঝB1plBiBiPiBjPiÍ!xcdBÎÂ᪀CABªḄd!bcdBefgKL▣tuঞzঞv{ᐭ&'optuঝ}~ᑮ2345XmFFÑtu!=+“BIF>81஺{ᐭᐹÕᦪÖ!~--0.6561-0.7547-17.7954'[^12LB=0.7547-0.656114.2296001x=-0.656lx-0.7547y-17.7954B2B1BIᡠᵫঞvᨵy=0.7547-0.6561y+14.2296l)2BI-0.13050.9914-13.5891-[^i3LB--0.99140.1305-9.3756001%=0.1305%+0.9914y„,-13.5891DJD\DIᡠØঞvᨵÛ=0.9914%+0.1305y-9.3756filᑖN{ᐭঝvᨵ஺Ü0)2+(>Û-0)2=(-0.6561X-0.7547y-17.7954+4.07)2+(0.754ÝÛ0.656Þᵨ+14.2296+0.5)2BIfil(x-0)2+(%0=(0.1305r+0.9914y--13.5891+2.1)2+(-0.9914v+0.1305y-9.3756-3.05)2B1BIfilB1B1x=-10.1607B1ᵫªv+y=2.5561B]x2=~13.0583x.--12.3812RR=%2=4.8844%3=1.0319

29ᙠXmஹy.x,%2ஹ43ஹ%3!}rs©ᩚḄKL▣6BiB2cos%-sin0x-xcos6à+ysin0{iPiplPi1j[஺/BC=sin4,cos஺],yPi-xP]sin!,-yp]cos^hi=2,3ট001vw,i=2,3,6=arctan—~—i=1,2,3iXPi-XBi᤯ᩚªxcdCFDfgCஹDhiḄjklᢝn4Ḅ&'op!6qrsoptu(xi—x)+(y-y)~=(%•—x஺ᔆ+(jc/~yi=2,3ঠCDc)Dvw᪥cdCefgKL▣tuzডv{ᐭ&'optuঠ}~ᑮ2345xciFyiFÑtu!=+CxFy,cicl{ᐭᐹÕᦪÖ!~0,-arctan—~—=arctan—~᜛ç=-0.2465xi-x0+10.1607PBiy~y—0.5—4.8844%n=arctan-^=----=arctan--------------=-0.5397Xp2~^^2—4.07+13.0583Jy-y3.05-1.0319.0.=arctan-P3---B-3=arctan-------------=0n.1i9n38oXpy~—2.1+12.3812ᡠ42=%-4=—0.5397+0.2465=-0.2932%=0.1938+0.2465=0.44030.95730.289-4.07[Ojc=-02890.9573-0.5001x=0.9573%+0.289y-4.07C2clᡠᵫডvᨵy=-0.289x,+0.9573y-0.5C2ccl

300.9046-0.4262-2.1[£>]=0.42620.90463.0513sc001ᡠᵫডv|ᨵx(C3%=0.9046xCrl-0.4262Ûyri—2.1[y=0.4262x+0.9046y+3.05C3clclᑖN{ᐭঠvᨵ(x+7.1)2+(y+0.52)2=(0.9573v+0.289^-4.07+7.1)2+(-0.28%+0.9573y--0.5+0.52)2C]clclclcl\x+7.1)2+(y+0.52)2=(0.9046i-0.426^-2.1+7.1)2+(0.4262r+0.904^+3.05+0.52)2clclclclclclx=-4.7026ᵫªv+éclW=2.6021=᪀wᔜ᪀CḄᩚ¾ᑖN6l=ë-”f+(-%)2=!(—12.14+7.1)2+(3.06+0.52)2AD=61821l=Jì-í)2+(%—)4)2=7(-12.14+10.1607)2+(3.06-2.5561)2=2.0424ABl=7(x-x)2+(y-y)2=J(-10.1607+4.702®?+(2.5561-2.602=5.4583BCfllclB1cll=yl(x-x)2+(y-y)2=7(-4.7026+7.1)2+(2.6021+0.52)2=3.9364CDclDclDᙠªðñᩚw!ò6/"+&>

31/'01
289Ḅ:4;o2ᙠp$%BḄqrsn-nK;ᱏ3ஹ83ḄusḄvᜐ᝞3xᡠn/'11
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289Ḅ:4;<=ᨵ?@Aᓄ஺7-2᪀
Ḅ#h,3°஺
ḄF:4
sN389Ḅᐵs——[1—cos
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Ḅ:4஺!}¡ᑖ¢,/ᑍ3ஹ.rᔊஹ.&./ᐔ3tஹ-v=^adt=accos(-^—=4ccos(--=-^asin(——)+C)“)£¤715c%§!}¡ᑖ¢aSin(7^)+G=---T^'accos(¨G)+C/+Cc2o7l~OR)()

32§ᵫª«ᩩ3=0v=0,5=0nb=bxv=0,s=hM)*\¯*°ᦪK²ᑖ°ᦪHG³c_h_h7t3G=஺nJn=5᦮2n·}'ᐭ⊤º¢—[1-cos(—8)]2507-5⊡ᐰ⚪7-5ÂW᦮Ḅ
ஹ:4KF:4s(ᑨÄÅÆᨵÇឋÉÊ,⚪7-5ÅÆᨵËឋÉÊ஺D᪷ÍᐵV="0,4="জ⊡ᐰ1Ḅ
ஹ:4KF:4dodos᝞}Ñᡠ஺ᙠḄÒO,MÓ%/3ஹ4Õ/3ஹ57/3ᜐF:4ᨵ▲×AᡠMᙠØÆᨵËឋÉÊnᙠ2Õ/3KÕᜐ:4ᨵ▲×AF:4Ù▲×AᙠᳮÛ}·ÜÝ@ÙÞᜧḄàឋáᡠMᙠØÆᨵÇឋÉÊ஺7-7ᙠ⚪7-7ᡠḄ᤮
᪀ã᤮ᩚABᙠåᚖçèOB,l=40mm,l=80m/n,ëìí=10mm,Mî:4co⌮OBAB┐N஺
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34cos3sin3}t~=sinScos5ᡠycdᳮdḄ\&}Xcos5sinbl-lcos(^+^)OAAB0)'sin3cos3TABsin(%+஺)ᵫghr,\0mm,ᡠycd▭dḄ\&}-dy/dSxr=x-104⊈"T+(dx/dS)2dxjd8yf=y-10Mdy/db)2+(dx/d6)2(2)ஹcdḄ▭᝞`ᡠb1`txyᨵ
ஹᜫ஺᝞ghᡈᜧeᙊgh஺8-3%dᔣp,ஹeᙊp஻ᑖᙊp¡ḄᐵQ}p=p=pcosa=¢72cosa஺nh£᪷¥Ḅឋ§ᓽḄ©⚪8-3`

35«Yeᙊ¬Ḅeᙊ^®¬Ḅᙊ¯ᨵp,=phdḄᦪz²ᦪ³eᙊgh´ᑖᙊghr,µ¶a~zp=2^,,zp=2¸"bº~r=rcosahᡠyPb=pcosa~p=miᡠyPn=Pb=pcosa=mncosa»஺8-4ᵨᡂ¸¿NᙊÀdᑐᐹ᪗ÃᩩÅᑐᐹᐸeÇÈᦪ:m=2mm,a=20஺ÊËᑴ஺ÍḄÎজ=Ð'"%ÓÔᑗᑴᦪZ=90Ḅ᪗Ãd/0×(1)tØÙᑐᐹᑖ¡ḄÚaᑐᐹÛ2ḄÎv(2)ᙠÝᢝ^☢Ḅ஺VáḄâãR×ḄÎᦋ3=᪵ᡠᑗᑴᩭḄdḄᦪZæQᦪXᔜéêëìdéÊædíéîædìï᪵ÝᢝaðáḄâãR×ḄÎᦋজ=*rad/ᡠᑗᑴ(3)sᩭḄdḄᦪzæQᦪxᔜéêëìᨬò¸¿Ḅó᝞vìô1õஹᵫ鸿᪗Ãd×tØÙᑐᐹᑖ¡ḄÚmz2x90a=——=-----=9()mm22ᑐᐹÛ2ḄÎmz2x901”,v-----co------------4mms2222.5(2)ஹdḄᦪz2v2x4ccz=——=----=92஻Y2x23æQᦪx

36a-^90-2_2x=tn2~æQᦪöᡠydéîæd஺(3)ஹdḄᦪz2v2x4=88.4æQᦪxmz90_2x884x=2----------2—=0.8m2~æQᦪÊᡠydéÊæd஺÷ᵫᦪáé᦮ᦪᨬò¸¿ḄóRù«úûáᑮFýþ᦮Ḅd஺8-5Fý᪗ÃÊËNᙊÀddḄᦪZ=17,µ¶a=20஺²ᦪm=3ÿ஺
ᙠᑖᙊ⚔ᙊḄ᳛஺᝞⚪34ᡠᵫᩩ!"mz3x17=25.5mtn~T~2r=rcosa=25.5cos20°=23.96mmbr=r+=25.5+1x3=28.5஻?஻%aᐸ'hZ=1(ᵫ)*+ᑴ-.Ḅ஺᪷0123Ḅ4567ᐵ9:;"ᑮᙠᑖᙊḄ᳛ᑖ=)%23.96a-arccos—=arccos-------=2o0nor25.5p-rtana=23.96tan20°=8.72/nmhᙠ⚔ᙊḄ᳛⚪8-5ᑖ=)a-arccos=arccos=32.79஺a28.5p-rtana=23.96tan32.79°=15.44mmahQ

378-6@A123B᪷ᑗḄᨬEFG9ᦪXminᵫIX2Xmin=1.min-Z-.஺JKZminZ>NXminḄᱥᳮUV஺AWKXYZḄḄᦪZhjn-xm}xm>hlm-NQ}klm=n$pqmPN]=rsina=^-sinaᦑm=2^sin2aᡠ;x2%-sin2a2%*0Zi*kl)Zmin=—ᓝᓽsin2a=—,ᐭI"SinFZminஹ/z.2,*z2஻/i*(z-z)x>h——sma=h--------=~—-min.......ancac22z-Z-ZminNXminḄᱥᳮV(ᢣYZᑐᐹ:;ᔣ'cஹmB᪷ᑗḄᨬᜧFG9ᦪ஺8-7ᵨ᪗ᩩᑐᐹYZ஺ᩩḄᦪ=4mm,a=20°,⚔9ᦪZ=1,⚔◣9ᦪc*=0.25,Ḅ'ᑮᑐᐹᑖ3¢£Ḅ¤¥)H=29mm,¦§XYZ¨ᨵ᪷ᑗ஺
-.XYZḄª«¬ᦪ஺ᵫH•°±XYZḄᑖᙊḄᜧE²³ᡠ;ᨵ“«¶·ᵫ¸:2ᑓ2H2x29…"z=——=-----=14.5m4ᵫᦪᦪ½E᪗B᪷ᑗḄᨬEᦪ17,ᡠ;¿:À(*FG஺᝞Á

3815x4ÂḄᦪᙊ᦮)z=15,ᑣH<------=30/Æ)ÇFGᑣ2.È᪷ᑗ஺Âᦪᙊ᦮d᦮ᦪ2=14,ᑣÉH=——+xm24X14H-ᔳ29-:"]=----2_=------2_=o.25m4¸NB᪷ᑗḄᨬEFG9ᦪ)x=="("74)=0.176minZmin*ᦑFG9ᦪx=0.25>0.176ÏÐB᪷ᑗᩩ!஺ᡠ;XYZ)*FGᦪ)14,FG9ᦪ)0.25஺ᑖᙊ)r=᝞'="Xi4_28mm22ªᙊ)r=rcoscr=28cos20°=26.31஻?஻%h⚔ᙊ)q=r+(஻+x)=28+(1+0.25)x4=33mm᪷ᙊ)஺=r—(஻+c*-x)/«=28-(1+0.25-0.25)x4=24mmÕ8-1ᙠiᑡ×ØÙ-.᜜ÛᔠÝᙊÞßḄàá(1)â—14,z—40,a=15°,h*=1,c*=0.25஺22h*ᵫI.LTᱏ:"æᵫç=30,ᵫZ.+Z<2z,èéß2minsin~a¿Àëᵨ*ß஺FG9ᦪḄ⌱íbÏÐ)>x,x>xolmin22min(2)Z]=33,z=47,m=6mm,a=20°,hZ=1,஺’=235mm2l)஺=ðX—+")=240mm>a'=235mmᡠ;ðñëᵨÇß஺ḄFG9ᦪᵫòó£◣ôõ-.:

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3%]=12,z=28,m=5mm,a=20஺h*=1,⌕᪷ᑗ஺2ᵫḄᦪ᪷ᑗḄᨬᦪ17,᪷ᔜ!"#$Ḅᦪᩩ%&ᵨḄ(!"#$)*+,(!"ஹ.!"/0!"஺
4a'=138஻?஻?஻3=4mm,a=20°,h*=1,=-.!"789:;3±1%Z1=--------------=25.875஻?<1+il2=>Z1=25,z=4225_42AZ=-3~25=0.008<1%,1253ᵫ?a=134"஻”

40ᑁsᑗGᵫZ"(2Ḅ[ᔣ%cᳮDEᔠGMN2᝞Oat⁐RGᡠ_஺(2)ஹf▭EᔠGᡭwᳮDEᔠGMN?xḄkypᐸaB,z"(1Ḅ⚔ᙊkᳮDEᔠGḄ|}B2Z"(2Ḅ⚔ᙊkᳮDEᔠGḄ|}஺(3)ஹEᔠia,;⁚}ḄU(Ḅ⁚ᙊḄsᑗGkEᔠGᡠᜳḄ┦i᝞O_஺(4)ஹ(A%jk(AlEᔠḄ(Ḅmnop%ᵫ}B,/B2cᩭOaᡠ_Ḅt⁐mp஺8-11G᜜EᔠRᙊT(!"ᔠḄs£--[z(tana-tana')+z(tana-tantai2a22⚪8-11OᵫᔠḄᨵ£=PnaPn=^C0S6Z=8]P+BP2=BN-PN^BN-PNX1222aB|M=rtan4]blPNஹ=%tana'BN=rtana22b2a2PN?=rtana'b2H=coscr=^^-cosar=rcosa=^^-cosezb22

41ᡠ%£=——[z(tana-tana')+z(tana-tana')](al2a21718-13ᨵPQ᜜EᔠRᙊT(!"(ḄY¢ᦪ£=36,G=33,a=20஺m=2mm,.§ᑴx=-0.235,x=1.335,(2(I)(¬Q(!"Ḅ᪗®a¯°஺/.±²a¯°a'A(2)(1Ḅ%,%,r,p,s,eAfi(3)k&ᵨ᪗®(!"l7´¬Q(!"ᨵµ¶·}/¸}¹ºḄᩩ)µ¶3(1)ஹ᪗®a¯°am2஺»ὡ½+Z2)=]X(36+33)=69஻஻஻.,2(x,+x)tancr.2(-0.235+1.335)tan20°.”“mvaf=—~~7----+inva=—--------------------+znv20°=0.0265094+Z236+33ᡠ%Eᔠi஻=24.05஺.±²a¯°஻',acosa69cos20°a=------=---------=71mmcosa'cos24.05°ar-a71-69(2)ஹ(!"ḄᑖᙊᑖÌÍᦪÎ==xÏ^=1m2Ñ⚔Íᦪ஺=Ò+Ó2-y=-0.235+1.335-1=0.1^2x36r=---=-----=3omm122%=6cosa=36cos20°=33.83MMr=஻+(A*-

42(3)ஹᵫ?X1+/=—0235+1.335=1.1>0,ᡠ%ÞQ(!".!"஺k&ᵨ᪗®(!"l7´ÞQ(!"Ḅ(ßà´á᪷âãä´åæᔠᨵᡠçèéᣚឋ9஺¹ºḄᩩ)ᔠ/(Ḅ⚔ᙊì)ᔲîï⌕ᓽs>0.25m஺a8-17PQG᜜Eᔠ᪗®ñᙊT(!"&=21,ò2=51,m„=4mm,a„=20஺*=1,cA=0.25,=15°,(ó8=30ôô஺`¬Q(!"Ḅa¯°a/ᔠ£஺(!"Ḅa¯°aa="xÏ*»ö=149.08ô2cosptanatan20°tanan=-------=----0-.-3-7--68tcos/?cos15°ᡠ%%=arctan0.3768=20.65°4%=--------Z]cosa.-x21cos20.65°=40.69mm2cos42cos15°m,*43I÷n…ù,----------x21+4xl=47.48mm2cos15°a=arccos—=arccos-31.02°at[%௃47.48m4r--------cosa,=----------x5Icos20.65°=98.81mmhn-2cos-2cos15°=———+mK=---------x51+4xl=109.60/nm"22cos/?2஻nan2cosl5°r98.81__,.a,*9-arccosh-t^2=arccos--------=25.64°o%2109.60

43£,=—l^i(tana“Ptan%')+z(tana-tana,')]2at22=—[2l(tan31.02°-tan20.65°)+5l(tan25.64°-tan20.65°)]2zr=1.5871£üBtan0b_Bsinr_30xsinl5°L06i79PP_^4ᨬᔠ££=+£=1.5871+0.6179=2.2058-18∍ᩚ∍!"#$∍!Ḅ&ᦪZ2=40ஹᑖᙊ,-4=200mm,∍ᩚᓫᜮ஺12(1)"#5=-.ᐸ731∍ᩚḄ9:$0)2∍!Ḅ9:;0)2(2)∍!<☢>ᦪ?,2$∍ᩚḄA☢>ᦪ஻C$ᑖᙊ,-4;(3)∍ᩚᑖᙊᓣE%;(4)7HI4஺JK(1)ஹ"#5[2="=N=O=40a>Z|12(2)ஹ∍!<☢>ᦪ",=Q=R=5஻᝞Z402᪷U∍ᩚ∍!"#ḄV1WᔠᩩYZ∍ᩚḄA☢>ᦪ[n=?,2=5஻஻"]᪷U^_᪗ab2Ḅ∍ᩚ>ᦪᑖᙊ,-cdᐵf$⌱h∍ᩚḄᑖᙊ,-4=90/71/71(3)gGஹjHcofjtan2,2ᡠp∍ᩚᑖᙊᓣE4=arctan=arctan100=3.18°,tuCvZpᵫpᓩ]245x40{|}12:

44AZRIZ,m.1x5-.c=arctan=arctan——=arctan-----=3.18°1ᐔ4490(4)ஹ7H'a=g(4+mz)-x(90+5x40)=145/nm28-20ᙠ⚪8-207$∍ᩚḄ9:=900%$%=60-%=25,z=20,z<—25,஻=20,z-=30,ᡭ=35,q.=28,z=135஺3346(1)ᑏi]6=~»=--»h,6="Ḅ⊤};86~66(2)12஻6Ḅᜧ9ᔣ஺JK1ஹ="=ஹ3..¡5=60ᵫ¢∍ᩚ1&!6ḄAH£¤¥¦§$vজ62••Zy•Z«•Zy¥ᔠ$ᡠp9ᔣᐵf«¬ᵨ®¯ᑜ±ᜮᩭ⊤³;«="=+´µ஺¶·-$“+”⊤³&!2&!6Ḅ9ᔣºt;জ6•2•஺,Z9%6=»=+জ&!5,&!6ᑁWᔠ$9ᔣºt஺জ6Zs(2)ஹj4="=¶•""Z5•Z6=60,0=20"013?=]08জ62•ZT•%•J'Zs2x25x25x30x28

45nnn/ᡠp஻6=¾n=ᯅ=8.33%‘Áᔣ"f"᝞ᡠ³஺Z16I஺'8-22⚪8-22-ᵨ¢Â#ᓄ᯿ÅÆᐹḄ!f$%=05ᱏ,60,z1m3z—=30,0421!fÉ¢ÊËÌÍḄᕜ9!f;212ÏÐḄ9:9ᔣ஺JK1ஹj!fḄF='3n-2P,-P=3x4—2x4-3=1hᡠpÑᕜ9!fÉ¢§Ò!f஺!f7ᨵÔÕ□!×Ø2¥#Ḅ஺—13d1—"HZ24%=30x40x120¡_2ஹÙ=2n-nZj-z,ez60x30x405H24j%=0ᡠpA”=—=3"HᨬÏÐḄ9:஻“=—=6.5^/$Áᔣݺt஺in8-23Þß⚪8-23ᡠ³ᜧà:5à:ᘤḄ"#5=v஺Jâ1ã!fᑖäÔᕜ9!fজ&!AஹBஹEfᩚCæᡂḄ§Ò!fKঝ&!AஹEஹFஹGfᩚCæᡂḄé#!f஺c/A_Z_47lAB——Bߟ-T7-COZA15cj6y8=0,ᡠpEo———cocA62cজf;3cSZG16X50I=—------=--------=---------AGco-coJ%15X17Gc

46ã0C="ᗂAìᐭî}$ᨬ62i=v=3306.67AG8GJâ2Kã!fᑖäÔᕜ9!fজ&!AஹBஹEfᩚCæᡂḄ§Ò!f;ঝ&!BஹEஹFஹGfᩚCæᡂḄ§Ò!f஺.cZB_47lAB~1óজB-%ZA15ᵫ%=0'=I+^=—3cZ.15,co-coZ“Z§_17x47cGcco-(o_ZZ_50X16ccGE17x47ᵫ஺8=0૙⎃=1-=1-জC50x16%62ᐔ=vcoc153306.67জG3G17x471-co50x16rᵫ¢§Ò!fḄᑖ᪆Þß5é#!fúᓫ$ᡠp$Jâ¡ᙠÞßÁ☢5ûúᓫ$Þß஺8-24ᑏ⚪8-247$জ3$S*þÿḄᐵᔜḄᦪ஺

471(C)⚪8-24g஻2](b)ஹ="ᜐ=(_1)2=&G-জHZ]•⊟Z],ᐰ3ஹAজHZ].Zஹ8-25⚪8-25ᡠ!"#ᓣ%ᱥ'(஺∍ᩚE"+,஺-ᔁ/01"250mm,AḄ23"700r/min456%ᱥ7ᓣḄ389AḄ:52ᔣ஺<=>ᵫ6@(A-B-C-D-E-F-G)9ᕜ2(G-K-H-L-M)CᡂḄEᔠ஺G6@(A-B-C-D-E-F-G),ᨵn_z-z-z_42x39x56ABl)FnN-E28X21X2GGᕜ2(G-K-H-L-M),ᨵ

48-G_஻K_஻G(_])2M51IKM~஻GP"஻K=0,ᡠQ1GM=±=2238஻MUVᨵ="=9•±=78x2.238=174.564nMnG஻MᡠQ஻Mᨬ_`%ᱥ7ᓣḄ38"v=n,A,£4x—x^=52.36஻?஻jw=302302/s-⌕m%ᱥ7ᓣ0nᔁ/Ḅ2ᔣo7\lli=7=2.238>0qMGM9ᩚGḄ2ᔣtᡠQG(F)Ḅ2ᔣvᔣ7w᪷y∍ᩚ∍z{9᜜}ᔠz{2ᔣᐵqQ56~AḄ:52ᔣ"⌮4┐ᔣ᝞ᡠ!஺8-26ᙠ⚪8-26ᡠ!Ḅ-A2{24L2{2ὅḄ2ᔣ>ᔲt~Ḅᡫ᪷yᐸᡫ56Ḅᵫ8஺<=>ᵫ6@(A-B)ஹ(A-D)9ᕜ2(E-F-G-H-J-K-L-M)CᡂḄEᔠ஺G6@(A-B),ᨵ-v__஻BZA20P"஻B=஻MᡠQ஻M=-0.5஻A⚪8-26G6@(A-D),ᨵ"A__24__2nz363DcP"஻O=஻EᡠQ஻E=-1.5஻AGᕜ2(E-F-G-H-J-K-L-M),ᨵn-n__z-Zj-z100x40x85EMFLn-nz-z-z30x40x45LMEGK஻M=-0.5஻A,஻E=ᐭ7ᨬ_`

49=j=-0.34nAᓽ-A2{24L2{0.342ᵫ¡0,ᡠQLḄ2ᔣ¢A£¤஺P"=v-\-F¥D(E)¦ᵫᡫq⚔¨Ḅᦪ©u=8,«Ḅᦪ©4=6,ᡠQḄᵫ8"F-v—X—e^=8—1—6=]8-27⚪8-27n,¬"Ḅᐭ®{C"Ḅ®{~᪀±஺An-50r/min,n=100/7min,5623஻0Ḅᜧ·92ᔣ஺AH<=¸aºஹ>ᵫ6@¸1-2º9ᕜ2¸2344-5ºCᡂḄEᔠ஺G6@¸1-2º,ᨵ஻i__z2_30_6nnZ125522ᓽn=--n26A4

50Gᕜ2¸2-3-44-5º,ᨵ.2஻3஻2-஻2/224-^550x4545n%5=-----------=-----------=¸-1º-----=-------=%஻2ncAd2Z3/420x3514஻A=50%in,%=100/in஻2=ᐭ7ᨬ_`n=-59.8%~ᐸ⊤!5Ḅ2ᔣ¢஻B£¾ᔣ"τ᝞ᡠczj\O¸bºஹ>ᵫ6@¸4-5-6º9ᕜ2¸1-2-2-3*4ºCᡂḄEᔠ஺G6@¸4-5-6º,ᨵ.__஻4_஽_24_3஻6nB43243ᓽ஻4=/Gᕜ2¸1-2234º,ᨵ,4_«|-«4_nA~n4Z2'Z3_34X64_1713%-஻4nc~n432x369஻É=50%Ê஻8=1¸º¸º%1Ë஻4=ᐭ7ᨬ_`1"0=88.24%^nc>0⊤!2ᔣ¢஻A¸஻Bº£¾ᔣ“Í'᝞ᡠ!஺10-1Ïm~⚪10-1Ð᪀Ḅᨬ·z{Ñ9ᨬᜧÒjÑ஺B'BUe=30mm\2<=¸aºஹsindz=-30+25=0.4583maxmaxl120BCᡠQᨬᜧÒjÑamax=arcsin0.4583=27.28°ᨬ·z{Ñ7min=90°-஺90°—27.28°=62.72°

51(b)ஹᨬᜧÒjÑa,ax=0°nᨬ·z{Ñ/=90°-a=90°-0°=90°minmax10-2᪗~⚪10-2ᡠ!Ð᪀ᙠ!Ù(Ḅz{Ñ஺<=(a)GÚÐ᪀ᙠÛᙽCᜐᨵz{ÑÝ᝞ᡠ!¥ᙠÛᙽDᜐvᨵz{Ñj,,᝞ᡠ!஺(b)Þ{±4ßᑮḄá{j>â᪀±3#ãḄ.᪀±4Ḅ38väå56¦᪀±3æᵨ᪀±4Ḅá{jḄᔣḄ56è-ᢥ᯿ë☢ḄVíUî=জ᪷y᪀±37ßᨵjஹjè-ðñ¨qQ56~᪀±4æᵨᙠ᪀±37Ḅj¥ঝ᪷yæᵨj9¤æᵨjḄᐵ56~᪀±3æᵨᙠ᪀±47ḄjḄᔣ஺!Ð᪀ᙠ!Ù(Ḅz{Ñ/ᑖô᝞ᡠ!஺10-5᪗~⚪10-5ᔜõÐ᪀ᙠ!Ù(4ḄÒjÑ஺õ"ö{±஺

52⚪10-5<=ᔜõÐ᪀ᙠ!Ù(4ḄÒjÑa᝞ᡠ!஺10-6ᙠ⚪10-6õ"ö{±~õ⌮4┐2÷30°4Ð᪀ḄÒjÑ஺<=ᑭᵨ¤2ùᓽõú6ஹÐû9Þ{±ü¢õ2ᔣ£¤Ḅᔣ®{ú6ýþ¨AÞ¨A“¤2”ᑮ
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53HI(1)ஹNOPb.ᐸa᝞ᡠ"஺ᵫ(TUᐵ6ᨵe-ecosbsina--R+rrᡠW᪀Ḅa2b34Ḅᐵ6)a=arcsin()R+rr(2)ஹ᝞:a>[a],ᑣ;^_`ae,cᜧᙊ-*+efg*+_10-10ᙠ⚪10-1ᡠ"Ḅ᪀(.W᪀1)/᪀jᔲlmn
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62mr^\=-[/n//0cos(-90°)+/«r(1)cos(180°+45°)]=169.71g/n/wh22mr^=-[w.r/0sin(-90°)+/«r(,)sin(18O0+45°)]=229.7Igm/nby22mr^'=^mr('\2+mr('}2=285.6Qginmbbbhby(I)q=arctan(m/^v)=53.54°(1)m/b1᝞11-4(b)ᡠ6஺ᙠ⊝☢n—iimrx=rH110bb^/cos(-90°)+mr^cos45°]=-593.96g஻஻஻2mH=ä[mJÔ"sin(-90°)+mr(u)sin45°]=-563.96gm/n22^brb'''==819.05g/?w7(II)6ஹ=arctan(ffl---')=43.57°mbrb*᝞11-4(c)ᡠ6஺11-3⚪11ᡠ6«þḄEÿ300r/min,Ri=25mm,1=35mm,R=40mm,mi=2kg,im2=1.5kg,nh=3kgoABᜐḄ஺!"#$%&☟(⊝*(⊝+,mi,-./0Rb=50mmᜐ*2Ḅᜧ456-7஺b:89+,1:;Ḅ<9=ឋG=2x0.025x31.422=49.36N89+,2:;Ḅ<9=ឋ

63F=m/?y2=1.5x0.035X31.422=51.83^222<89+,3:;Ḅ<9=ឋ4=ᔩ4ᗂ2=3x0.04x31.422=118.47NF=Fcos90஺+B2cos1950+FCOS285°=-l9.40Nx}3F=ὡsin90°+:2sin1950+Fsin285°=—78.49Ny3ᡠEFḄ<9=ឋF=G+ḄH=I19.40)2+(—78.49)2=80.85N"AJK*ᨵ1000NB=200FᡠEBᜐḄNg=M”B=16.17NOAᜐḄNA=F-NB=64.68NP(⊝+,᪷஻*S-ᵨ5xGᔣVWḄᜳ6a⊤ZᙠxSᔣ\]ᑁcos90°+mRcos195°+cos285°+mRcosa=022bhᙠySᔣ\sin90°+mRsin195°+mRsin285°+mRsina=02233hhᡠEᵫE\`abctana-dᑁsin90°+d?fsin195°+g4sin285°_40452Rஹcos90°+mRcos195°+cos285°22ᨬic(⊝+,nh,ḄS-a=arctan4.0452=76.11°(⊝+,jḄᜧ4d=1.64kg11-8ᙠ⚪11-8lᡠZḄ&mnop*qrᔜnḄtᦪzi=Z2=20,z=60,ᔜ᪀wḄ+9ᙳᙠᐸz"{#3|\*2}Ḅ#~=,ᑖM=\=0.01kg-m2,J”=0.16kg•m2,&mn2Ḅ+,m-2—2kg,ᦪm=10mm,ᵨᙠoᩚH\ḄKM“=40N•m,Sᔣ5oᩚḄ#ᔣz஺E᪀w1ᦔ᪀wḄᦔ#~⚪11-8l=,JeMHᦔKM0cE᪀w1ᦔ᪀wḄᦔ#~=,

64A=^+A(—)12+w(—)2+JH(—)22

651—71171%=—Ùx500=+500x—;AW=-/^x(1000-500)=-500x-;62828171%=—g"x500=+500x—216ᐸp“+”⊤ZÒÕ*“”⊤ZÔÕ஺l13-9ᦔKZÕlÛÐZÕl*᝞l13-9(b),ᐜÛÐᩩÞ(|*µßaàá*ÒÕᔣ\Û,ÔÕᔣIÛ஺ZÕlpḄᨬâß"ãCOmin*ᨬæß"ãজmax஺ᵫl13~9(b)bEèÐ*ßbᨬæ,ᑣᙠêßo¼Ḅ6ÃÄᨬᜧHßCᨬâ*o¼Ḅ6ÃÄᨬ4஺ᑣAWmaxḄëᑖ×▲\▲ãl13-9(a)pḄßbßCo71%9004î2=0.716kgmí9;

6613-6qrïd»ðñÆ#Ḅᦔ½~Kᦔ¾K᝞⚪13-6l(a)ᡠZ஺d»Ḅᦔ#~=,.ò1kg•m2,ᦔ½~KM=30Nm,d»ðñÆ#àáᦔ᪀wḄ6(lÃÄ30=25rad/s,÷øñ(1)ᦔ᪀wḄðñÆ~ùú3(4)H(2)ÃÄÈᙳᒴoᦪ8H(3)ᨬᜧÒÔÕAWL*M(4)!⌕[6]=0.05,ᔲ⌕᝞ḄZ஺ᡠ=4M=4x30=120Nmd!"=[”%&,)ᓽ)᨟=+yf

67-71,625+60஺0<(p<-271,/ᓄ78ᑓ=V7625+120^-180^—<(P<7C2J625—120B+60஺7T<(p<2/r(2)ஹDEᔜGHஹIJn%=^7T-M=+15BdK%=(NOPB).(M,_Md)=-457A%V(2»O%).=+30N᪷Z[\a^_`aḄbᓄcd[᝞[\b^ᡠc஺f[ghiᙠ^/2ᜐḄmnoᨬᜧᙠrᜐḄmnoᨬs஺ᓲ1,1,F(M஻-M“M(p=-W-Jco-eᓽv30-0M°=gxlx*%gxlx252ᡠ஺|=26.82}%2ppᓽ£(30-120)d(P=|xlx(yP-|xlx26.822inᡠ.=20.89}%%=P@+®)=1x(26.82+20.89)=23.855^d/minᡠnoᙳᒴᦪ"5_@m,x&min_26.82-20.89=025co23.855m(3)ஹᨬᜧHIJ"AWmax=£(30—1203᜛=45B=141.37N22\4^ஹ⌕[6]=0.05,a⌕஺Ḅ"

68n%j__141,37=3.97.2}23.8552X0.05