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1060ஹWa>Ḅᵫ4m/s,ᵫ4m/s8m/s,`$z>ᡠNḄP+ᔲ61ஹ“/kᜧḄᱥW/kḄᱥᜧ”“ᜧḄᱥWḄᱥᜧ”஺`$+ᔲO62ஹᙠUឋᑁ}UVḄ¢£Y¤ᑣᡠNḄP¥Y¤ᔩ63ஹᙠ3ᙢ☢nhᜐ§¨Ḅ©ªᑖ!«¬f5¬aᳫ஺ᳫḄ/k®~¯°ᙢḄᔜlij?64ஹ³´µ₹·Ḅᭆ¹65ஹᙠ₹·Jᵨz᪀»¼½¾Ḅ78¿+;<66ஹᙠÀ½ÁIÂÃ₹·Ḅ᪀»lÄÅj[᪀»ḄÆᜧÇ+Æ67ஹY'᪀»Ḅ+ᔲW☟ᜧ68ஹÂÃᱥnfÂÃ:ÈÉᙳRÂÃᱥekYW¤ÂÃ+ᔲ¥YW¤l;<69ஹl;<ÂÃ₹·Ë₹·70ஹᩞᧇÎÏẚÑᨵ;<ᱯ:71ஹᩞᧇÎÏẚÑḄÒ+;<72ஹ;<+ᩞᧇḄᢝÔ᩽▲73ஹ³´µ×dᭆ¹஺74ஹ#ØÙᾪÛµ¼ÒfÛÜÝḄᱥᳮ]ß஺75ஹµ᜜NPàáâãᐵå஺æçèᑖé½¾⚪

11ম1ஹíîïdᔜᜧᙳl50kN,õᔜᙠçaᙶ᪗2«Ḅᢗù.

12⚪1ï⚪2ï2ஹõzᑡᔜïdḄᔜûçaᙶ᪗2Ḅ஺3ஹᙠ5Eü☢«Jᵨᨵᜧᙳl10kNḄçaõᔜûçaᙶ᪗2Ḅ஺4ஹ᝞ïWþᛞᵨ

ḄT=5kN,ᐸᙶ᪗Ḅ஺⚪3⚪45ஹ᝞AஹBஹCஹDᑖᵨḼ!"ᐸ"AஹC#$ḄᑖF=100N,%BஹD#$ḄP=200N,#ᏔḄᏔ'ᔠᏔ஺

13⚪56ஹ)*+,ᑮ./PḄᵨ./0e=5mm,1ᐸᔣ"/34567ᑮ•9:ᏔlOOONmḄ▬<Ꮤ=Ḅᜧ?஺

14⚪6⚪77ஹ᝞F1=10KN,᝞@F|ஹF2ḄᔠAxḄBᔣF2Ḅᜧ?CDE஺8ஹᙠGH$ḄIJᵨḼᐸ"K=10KN,F=5KN,F=2KN,KLᔣ0ḄMᓄḄOP஺23

15⚪8⚪99ஹ:STᨵVWḄXWY/,ᐸᜳ]ᙳ120°,cXᔜᵨ:ᚖfgXḄF஺ijLk1lᔣ"/OḄMᓄOPn2
ᔣBCq3"DMᓄḄOP஺s#OPtuvwx⚪஺⚪1010ஹ)Vy]zABCḄyW/,ᙠᐸy|ᵨᜧ?ᙳFḄBᔣ᝞}alᡠ)iḄᔠᡂOP஺᝞1ḄBᔣᦋᡂ}blḄBᔣᔠᡂOP1᝞

16...........................................................................11,┵ᵨg┵Sᩨ$ḄᑖP|=20N,P=10N,2Bᔣ᝞ᡠ)஺ᵨg┵C$ḄR9Ꮤm஺⚪1112ஹᑡzḄz/஺⚪1213ஹ)▢ᑖḄ/஺ᐸ"RI=10cm,R=8cm,6cm.2IV

17⚪13⚪1414ஹ)᫑Ḅᙌ☢Ḅ/஺15ஹP=10KNḄᱥᙠ4᫡Ḅ"᫡ḄAᵨ¡¢gᜋ$¤:ᵨBCᩚ¦ᥛ¨᫡9ᥛᩚḄ©ª«BCᩚ,'AᜐḄ®¯஺16ஹ᝞ᡠ)a=45°,ᙊᳫP=1KN,²³ᩚABḄ"´µ¶·BCḄ'AᜐḄ®¯஺¸¹a]ºDEYJBC·,ᨬ?஺17ஹ᫡AB$ᵨᨵ:ᏔM,ᐸᏔm,᫡WLᑡ#¼½¾¦¿AஹBᜐḄ®¯஺ᓅB

18B⚪15⚪16:~¹:Â.,_JABAAUxBLLJLLJ(a)(b)⚪1718ஹP=10KN,m=4KNm,a=lm,F=5KN,a=30°,q=lKN/m,ᑡᔜ᫡Ḅ¦¿¯஺

19⚪1819ஹ)
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2020ஹ)Æ᪀G=5KN,ABᩚ©ª«BC·Ḅ'ÈAḄ®¯஺21ஹᑡÉᔠ᫡Ḅ¦¿¯஺ᐸ"q=lKN/m,a=lm,P=3KN,M=5KNm஺⚪20⚪2122ஹÊ᜜ÌÍḄ4᫡$ᵨᨵq=2.5kN/mḄᙳÎ₹Ðᙠ4᫡Ḅ᜜Ñ+$Ò₹ÐF=10KN+Ḅ3ᑮᜋḄ0Óa=2mÔᐭḄ®¯஺

21A⚪22⚪2323ஹÖ×Ḅ#ᑖAB9ACᙠAÈ´ᙠDஹE#ᵨ4·q´²ᙠᐝÙḄ4☢$¹Ú┴P=700N,/=3m,a=60°,a=2m,h=1.5mJ·×Ḅ9BஹC#Ḅ¦ᥛ஺24ஹÜÝÆÞÜÝḄᱥM,ᑮḄÜP=10KN,¹a=80°,CBᚖgDE,ᵨgAḄ³0AᚖfḄF஺⚪24⚪25

2225ஹßÆᑴáᘤ᝞ᡠ)ª«ᔜᩚ©¹R=200NJᑴáF?஺26ஹÍãḄO᪀᝞ᡠ)BCE᦮Í☢AOBᩨᩚ᝞ª«ᔜ᪀HḄ©i4⊝æṹḄèG1³ÞéᱥG2Ḅêë஺27ஹᜳìÆ᪀᝞ᡠ)AஹBஹCᙳÈ´ᙠÈ¢Bᜐ,ᑮáF=100NḄᵨᜳìJ]a=30°,ª«ᔜᩚ©9ᔜᜐḄ᥅îGHᡠ,ᑮḄᜳìP஺⚪26⚪2728ஹ:᪀Å᝞ᡠ)¹P=10kN,AD=DB=lm,AC=2m,Ùïðñr=20cmJ¦¿AஹCᜐḄ®¯஺...................................q..................................

23⚪28⚪2929ஹ᫡AEᵫfᩚq´¦ᥛgᜋ$,ᙳÎ₹Ðq=lkN/mḄᵨO᪀óô᝞ᡠ)ª«ᩚ¦¿A9BḄ¯'1ஹ2ஹ3ᩚḄᑁ஺30ஹP=100N,a=2m,ᑡ᪹ÅḄᔜᩚḄᑁ஺⚪3031ஹᙠ)#¼½¾"P=200N,F=100N,a=30°»☟᥅øLᦪf=0.5,ᔜ¼½¾ᱥᙽᡠ,Ḅ᥅ø'û¼½¾ᱥüýþá

24⚪31
32ஹP=10kNḄᱥᙽᙠ☢h,☢Ḅ᥅Pm=30°ᵨᔣᡂ45°Ḅ%W'ᱥᙽ()W=5KN,+ᱥᙽᜐ-./012᝱஺⚪32
⚪33
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2534ஹ[\T]᪀_F`ab᝞
7A)abdeḄ᥅Hᦪf,abegh☢Ḅijb,+lmnᵨᙠabUḄ%FᑮeqḄrsauᜧabwxyᓱ{஺ᐸ_abḄE}ᶍ஺⚪34
⚪35
35ஹPḄᱥᙠ஺Ḅ☢Uᱥ☢Ḅ᥅q)mᙠᱥUnᵨ☢ḄB%F,R'1ᱥYḄF஺36ஹ
7AOஹBOஹCOᩚᙠ஺ᵨᳫg,

26AஹBஹCg-ᜋUᐸ_AOஹBO-☢ᑁAO=BO,DAB_☢CODAOBᡠᙠ☢ᚖ()OᡠᢞᱥP=1000N,Rᩚ%ᔜu஺

27⚪37
⚪38
37ஹb?¡=ᓄ᝞
7஺¡£P=15kN,Pnᵨq¤☢ABCᑁḄDAPDḄBq¥i¦ᚖᑖqBC஺?8ᱥW=5kN,%WḄnᵨq¨¤ABC☢ᑁḄEᔜ©ª᝞
7ᓫm஺Rᙢ☢¬?]ᔜbḄ®%஺38ஹ[¯1e9ᨵ±²bᐸ³´ij=15cm,r=20cm,bIḄ±²µḄᐸ¶%T|=2t|=1000N,b1Ḅ±²P·ᚖqᡂ0=45°ᐸ¶%T=2t,222R¯〈²nᒴT¹1YḄ¶%T2,t2Peº®%஺39ஹ»ᵨ¼☢½R¾ᢣÀ¼☢e%Áne%
஺⚪39
40ஹZÂḄ%ÃÄ᝞
ᡠ7ᱏ=400"ஹ£=360Nஹ4=3(XNஹÆ=360ῖஹÈ=320Éஹ4=380",»nZÂḄe%
஺

280.0.8Gm3m0,ÊË—⚪40
⚪41
41ஹn
xeḄÌÍ
m=40N-m42ஹ»R
7᫡ᢣÀ¼☢UḄᑁ%ᓽÐ%PÑÍ஺%4≆⚪42
43ஹᑡ¾
7᫡ḄᨴÕஹM(x)Ön¾×(@ஹM(x)
஺

29⚪43
44ஹᵨÚᑴ¼☢½PÜݽÞᑴWᑡᔜ᫡ḄÑÍ
஺

30⚪44
45ஹ`1ß?]᝞
7஺()àáZḄâ¼☢☢ã4=&’ᩚABḄâ¼

31☢☢ã4=&E2,8Q=30kN,RàáZACPᩚABâ¼☢UḄå%஺æYàáZACçè8ZQ஺⚪45
46ஹ[égêàëᨵìí┑dᐸ%2Ä᝞
ᡠ7஺()àëïjb=60mm,ðjt=10mm,d´d=16mm,ñ₹P=40kN,»ó¾àëḄe%
Áæᐸᨬᜧå%஺⚪46
⚪47
47ஹ᝞
ᡠ7▤öᩚᩞᧇE=200GPa,â¼☢☢ã4=4=160R<»RᩚḄø\ùᨬᜧå\Pᨬᜧúå%஺48ஹ
7ûᢞᩚiF=2m,ᓫijḄüq=2kN/m,₹ñP=20kN,»nᐸe%
ᩚê\øýiEþ?=2mmYᐸᢙ
EATirr

32⚪48⚪4949ஹ.“="2"1,᜜D=120mm,ᑁd=60mm,G=80GPa,!"#ᨬᜧ&'(J,#C*☢,-A*☢./Ḅ1஺50ஹ᫡Ḅ*☢᝞ᡠ"ᙠ7☢89:;<"=>?8!"@ABCDE1-1F2-2GḄ89?'(ᑖIJz>KឋM஺⚪50⚪51

3351ஹ!N*☢᫡᝞ᡠ஺J1OPm-m*☢GAஹBஹCஹDᔜRᜐḄ?'("TᢣVW'(XWY'(Z
2OPm-m*☢GAஹBஹCஹDᔜRᜐḄ&'(ZJ3OP᦮᪷᫡Ḅᨬᜧ89?'(Fᨬᜧ&'(஺O7/I/NF60—10404052ஹ#ᡠᔜ*☢-NZḄaឋ!4Fᢙ8*☢cde஺⚪52

34⚪53⚪5453ஹJaMஹJbMk*☢ᙳᵫkn16pqrsᡂ"c>*☢N"=vk*☢-NyḄaឋ!,"#JbM*☢Kx!5஺54ஹy᫡*☢Ḅaឋ!Jz஺'—',#ᨬᜧ'(FᨬᜧY'(Ḅᜧ}~ᡠᙠ*☢஺55ஹ@ᵨ᪆#ᔜᓫᐗᢣ*☢GḄ'(஺JᓫMPaM

354040⚪550>)56ஹᓫᐗ᝞ᡠJ'(ᓫMPaM,@ᵨ᪆:1M'(ZJ2Mᨬᜧ&'(஺⚪56

3657ஹᔜ᫡ᢙ8
ᙳ>EI,@ᵨᑖ#ᔜ᫡Ḅ.1ஹᢰ~ᢣ*☢Ḅ.1Fᢰ஺⚪57

3758ஹ@ᵨ#ᔜ᫡*☢AḄᢰ"*☢BḄ.1஺⚪5859ஹ᪷D>d=30mmḄrᩚ"ᙠᔣ₹80kNḄ¢ᵨ<"ᙠ1.5mḄ£ᑁ¤£¥1.15mm,ᩞᧇḄ¨©᩽▲>210Mpa,®¯ᦪ>0.27,@#:(1)ᩚ³*☢GḄ?'(Z(2)ᩞᧇḄ´ឋcdEZ(3)ᩚḄDᦋ·d¸

38ppZfXnZ丁Z/v/—£77777760ஹ£1=320mm,Dd=32mmḄᙊN³*☢rᩚ,ᙠ@¼½G¾ᑮ(P=135kNḄ¢ᵨ஺ᵫdÀÁᩚDÂÃ¥0.006mm,ᙠ50mmḄᩚ£ᑁḄ¤£>0.04mm,@#ÄrᩚḄ´ឋcdEF®¨஻஺61>ᙊN³*☢Dᩚ¾ᔣ¤஺ÆᩚḄDd=16mm,ᩞᧇḄÇÈ᩽▲É=235M%,ᩚÊ(>P=20kN஺#ᩚḄË¢Ìᐰ¯ᦪ%஺⚪6262ஹÏYᩚ"ᐸDFᩞᧇḆ,Ò஺@ᑨÔÕ᪷Ö×¾ḄY(ᨬᜧÕ᪷ᡠ×¾ḄY(ᨬ}=E=210GPa,d=150mm,@#ᔜᩚḄØÙ(஺

3963ஹ᝞ᡠ>᪹Û"ᙠDR¾ÜD(P¢ᵨÝvᔜᩚÞß´ឋ·N஺ᩚ1ஹ2ஹ3ᩞᧇ,Ò"ᐸY´ឋcdᙳ>E,ᩚ1àᩚ3Ḅ³*☢☢>4=4=',ᩚ2Ḅ³*☢☢>44>A஺@#ᔜᩚ(஺⚪6364ஹᙠ᜜D=25mmஹᑁd=15mmஹ£=200mmḄáâãᑁᝅå᪷D>15mmḄrᩚ஺æáâḄ´ឋcd>Ei=140GPa,rḄ´ឋcd>ç?=200GPa,P=12kN,#áâãFrᩚḄ'(%~·N

4065ஹ@#ᔜ*☢᫡Ḅèéê(஺⚪64⚪6566ஹ>ëì½íÛ"ᐸîïᩚABஹACḄ³*☢☢A=80cm2,ëìdP=1000kN,ðᵨ'(>OJ=I00MPa,@᪥᪶îïᩚḄó஺⚪66⚪67

4167ஹ>ëì½íôḄGÊᵨḄõö÷஺=õøᨬ}Dd=60mm,ᩞᧇḄðᵨ'([O']=80MPa,@#íôᨬᜧëìdP஺68ஹùúᑁD=200mm,ᑁYóp=2MPa஺ûüᩚᩞᧇðᵨ'(2]=60MPa,(1)@ûüᩚḄDdZ(2)=ýþùúàùúÿḄ
᪝16mm,
᪝Ḅᵨ[bh=80MPa,ᡠ◤Ḅ
᪝ᦪ஺⚪68⚪6969ஹᙠᙊᩚ!ᜓ#$ᑗ&᝞ᡠ()*d=40mm,+P=100kN,ᩞᧇᵨ[b]=120MPa,./ᑗ&01bḄᐕ3஺70ஹ($456,P=40kN,ᔜᩚḄᩞᧇᵨ[b]=120MPa,ACᩚஹADᩚᙊ9☢DEᩚᙊ;,(ᑁ>᜜@Ad/D=0.8),ABBCD./ᔜᩚḄ9☢EF஺71ஹ(GHIJK᪷M᪗OEFᑏQRᑗ☢ST+☢SஹᢴV☢SḄ⊤XY஺

42⚪70⚪7172ஹᩈ[GHIJK᝞ᡠ(ᵨ+[^@dᨵ$fK஺g;x0xj36x8x8mm3,)*fḄᵨRk56MPa,ᙠl^]700mmᜐᡠnḄP=300N,᪥᪶fḄq1஺

43p⚪7374ஹ(rᙽt110mmḄuᵨ416mmḄv┑xHᙠ$4஺)*y┑zuᵨ{]=120MPa,[°>]=300MPa,[b]=160MPa,P=110kN|᪥᪶}┑Ḅq1~u0ᨬEFbḄ3஺75ஹᑗᧇJKᵨᑐᑓᑗᧇḄ,16ᧇᑗᧇ20Rᑗq1᩽▲=32010%,/ᑗp஺

44⚪74⚪7576ஹ^Ḅ᳛ᑖ᝞ᡠ()*n=300r/min,G=80GPa,]=40MPa,[5]=1°/™./ᔜḄ▤^~/5O1Ḅn஺77ஹ$*9☢^¡ᐭḄ᳛᝞ᡠ(n=1450r/min,[£=60MPa,ூ¥=஺-60/"1,G=80GPa஺./^Ḅ஺

45⚪7778ஹ^᜜",=3©-eᑖ᝞ᡠ(M=7kNM=4iVm4=6(2ஹd=65mm,[rjpa,᪥᪶«^ᔜḄqBc2=60M1஺MAMC¬500400⚪7879ஹ]^>®]^¯°ᱛ²Y³ᔠᘤGHᙠ$4஺)*^Ḅn=2OOr/min,⌴᳛·=¸ᵨᩞᧇ[r]=60MPa஺⌱º]^4zᑁ᜜A30.75Ḅ®]^᜜ᑐ2,~A»r^9☢☢S஺⚪7980ஹ$ᙊ^᝞ᡠ(ᩞᧇᵨ[b]=160MPa஺᪥᪶«^Ḅq1஺

4681ஹ$¾¿¿^᝞ᡠ(஺)*a=0$6«,^=&ÆᩞᧇḄᵨ[b]=ioËÌMPa,⌱º¿^஺⚪80⚪8182ஹT9☢᜜Ñ᫡TEF᝞ᡠ(^=70mm᫡Ḅᩞᧇ[d+]=30MPa,[fl-]=60MPa,᪥᪶᫡Ḅq1஺c

4730•1-1DkN<1q8KN/e$2c—-------------4G(a)⚪8283ஹↈuÙÚḄÙÛEF᝞ᡠ(Ùᑴ12xl03kN,ÙᑴuḄ011000mm,ÙÝÞßᵨà[b]=100MPa,./ÙÛdEF஺

48100KN15QKN⚪83⚪8484ஹâ¿dᨵ$ãlOOkNḄç¿z$ã15OkNḄç¿éᵨ--êë᫡ᐳí4ç5îP=25OkNḄ.ᜓ᝞ᡠ(஺(1)5îl100kNç¿Ḅl³Xᙠñòôᑁõö÷ørãç¿ùúûüýþ(2)ÿᵨ
᫡⌱
Ḅ஺ᵨb=160MPa,85ஹᙊ$%᝞'ᡠ)஺$*d=30mm,$ᩞᧇḄᵨ=160MPa஺ᵨ0123ᳮ5᪥᪶8$Ḅ23஺A/=200Nmmo஺⚪85'

4986ஹ᝞'ᡠ)Ḅ;<=☢?@᫡A₹PCDEᔣGH☢ᑁJKLMNᡂQP஺P=3KN,b=40mm,h=80mm,a=60஺஺bl=120MPa,᪥᪶?@᫡Ḅ23஺87ஹ᝞'ᡠ)ḄQ᧕STUV᫡ABᵫX᪷20aZᑴᡂ\]Ḅ^T_S`TaᐳcdP=40kN,᫡ef=3m,᫡Ḅᵨ0
=120MPa,᪥᪶᫡Ḅ23஺

50y88ஹ᝞'ᡠ)Ḅ1PgᙠV᫡ABḄklBᜐ%nopP=12kNḄᵨtV᫡ᵨ
ᑴᡂ,ᵨ[«l=120MPa,⌱
஺᝞DCᩚᵨX᪷P{|⌱PḄ஺⚪88'⚪89'89ஹ᝞'ᡠ)ḄS`~*D=360mmḄ~ᙠ?@᫡ABḄ^k஺P=30kN,I=1.2m,[b]=160MPa,⌱Z஺90ஹ;<=☢᝞'ᡠ)P=86kN,b=80mm,t=10mm,3a=12mm,Ḅᵨ[bklGOMPa,ὃ⇋ᜐopḄ஺1᪥᪶Ḅ232tᙠḄGHC᢬n¡¢Ḅ£¤Ḅ23ᨵ¦§ᓄ஺91ஹ;<=☢©ª%«᝞'ᡠ)஺஽ḄᵨNK©ª$NTᔠ®ḄᵨNK©ª$NM¯JCD஺M☢ᑁ஺6=5=100kN,b=220mm,£Ḅ±²;B=100ET,᝞³⌕©ªḄV=☢µ¶஺1=☢¡¢h¸2¹hº»¼©ªᑁḄᨬᜧ«஺

51⚪90'⚪91'92ஹlḄ¿ÀÁÂdx=4+3SQ/K=&প[jr=3cos£,)[jr=l«r-4/2(2ᐸÄÅÁÂÆcÇlᙠ¤È£=Á==¤ḄC஺

52y93ÊËÌÍᩚU᪀=L=60cm,MB=3,*=᪹tÓÔcÍᩚÕMlḄÄÅÆt=஺¤8lḄÖ3×Ö3஺⚪93'ᑍS=3ᑍan-tan94ஹlAÚR=60cmḄᙊᕜ¿ÀÆÝÞÁÂ2tᢥScᙠt=4S¤AlḄÖ3_×Ö3஺95ஹá
ᔆãᵨ^ᵫä┴ẞçèéT┴êᓣìᑮ9.6m,ᯠ¼ïðñ┴^ᵫäòẞçèé஺T┴óäᑮèéÕ¤ḄÖ3_òäᡠ◤Ḅ¤È஺96ஹlḄ¿ÀÁÂd
=õn£¥=3,lḄÄÅÁÂ÷t=lS¤lḄÖ3ஹ×Ö3஺97ஹlÚËNᒴ§Ö¿À஺áú¤lḄÖ3_×Ö3ᙠᐔஹü$ÕḄᢗᑖÿ
=2Amls,a==-3mls1zuḄᑗᔣᔣ2ᡠᙠḄ᳛36sᑁ!"Ḅ#$஺98ஹ)*ᩚ,᪀./)01O345஺67OA=r,AB=L,*ᩚ>M@AABb,D5EFGᙽBᙠᨬJA஺1GᙽBḄD5L$/2MḄD5L$ᑭ1=0Ḅ஺

53B⚪98P⚪99P99ஹQRSḄr,QR43ᑮSRḄQR@OC=a,ᙶ᪗3᝞PX஺Y5ᩚABḄD5Z[஺67*=Ẅ//_ᦪ஺100ஹ᤯ᩚ,᪀ḄGᩚABᙠbcdᑁ0ᒴuᔣ>D5/fᑖhᵨjkᙶ᪗lᯠno᤯ᩚCḄD5L$ᙠ*=ᑍ/4qḄᜧs஺tuvw=°,᤯ᩚBOC=b஺101ஹᩚABᙠyzrḄ{|ᙊ~☢.0ᒴuᚖjzᩚḄLᔣ5஺ᝅᙠᩚᙊ~>Ḅs~MḄlᯠḄD5L$ᐸ஺tuv/s~Mᙠᜧ~Ḅᨬ0ᔣJD5஺

54⚪100P⚪101P102ஹP┵᤮஺sᳫMḄm=lkg,zB=30CEḄ>/Ḅ>A{|zO/sᳫMᑣᙠ☢ᑁᒴᙊᕜD5஺67ᚖdḄᜳka=30°sᳫḄḄ஺⚪102P⚪103P103ஹsᢥ¢£ᡂakḄ¥ᔣ¦§¨234mḄ¢/ᙠ2.5minᑁᑮ©¢£ªᚖjḄjAB>ḄB,᝞PX஺t¢Ḅ«u=3.24km/h.,ᐰ¢Ḅ¨®¯஺ak஺,2104ஹᩚBr=OA=12cm,ᐸ45Z[3t0s°/±²5G³´µD5/᝞PX஺ᙠt=5sG³ḄGᙽAª¶zG³Ḅ஺

550/⚪104P⚪105P_¸.K{105ஹs~M*º{|ᩚABᢥZ[,3s"61045ḄᩚOD,᝞P1X/tCO=54cm,ᙠdt=lss~MḄ¿¶ª¶஺777ᔆ06ஹᙊ½SR,¾67½SḄ5,,s/ᙠPXᩚABḄ5஺------------PB||A|■-/////////////////////////////////,

56⚪107P⚪106P107ஹAஹBÀᱥÂᵨ*ᙠÃ/±ÄᙠᐝGḄ☢>/AᱥÂÆG‘=200W,BᱥÂÆAஹBḄÇḄÈ஺108ஹ-mḄᱥᙽÄᙠᒴ45Ḅ4ÊᓃᐸÆR@43Ḅ@Ìr஺᝞ᱥᙽÍ☢ÎdḄ᥅ÐᦪÑ/ᱥᙽ®ÒÓ4ÍÔ4ÕGÖḄᨬᜧ஺⚪108P⚪111P109ஹ×ᙠØka,᥅Ðᦪ7ḄÙ☢>GÚḄa=110ஹÛÜz⍝#>ḄÞß/ᑷßá"2âãäåæ/åæçGÛḄ@Ì9.8è஺¾ᑷß"$.Þßéᒴ¯D5/fSêᙢ☢dḄ᥅Ðᦪ஺111ஹPì〈ᱥᧇḄ᤮5ì〈,஺67tbv)Ḅkkᑖh஺£,4ᔣ᝞PX஺᪗vᧇ³.ஹᱥᧇ⚩ñMḄ/0)%4Ḅkk஺

57112ஹ67bᵯ5,43ᙠõ5▤cḄ45L$w=ᦇ2wḄᓫù/tḄᓫâ/ᐸk஺úᐸ4©ᑮn=500r/miQ◤⌕Ḅd஺113ஹ67b,3Y☟æEF0®¯Ḅk£45ᓽᒴ¯45஺ÿḄ஺114ஹ-ᵯ஺1ḄR,஽=152Ḅ*1ᙠ!"#Ḅ$ᑖ&/i஺ᔣ᝞ᡠ+஺,-2./Ḅ012ḄB3Ḅ$45ᡠ67Ḅ8ᱥAḄ$஺⚪114⚪115115ஹ+;᪀=>᝞ᡠ+?0^=0^=AM==AB@qᢥB=15MrarfḄCD,Et=0.5stl>ABᩚ2M3Ḅ$஺116ஹG#012ḄA3ḄHI-01JK20cmḄB3Ḅ%=10cE/S,,GḄ®Nd஺

58RXB117ஹᤅP;ḄQR#S0203஺Ḅn=960r/inin,AB=0203,6A=GB=25cm,ᔜU2=5=155,,ᤅPᩚVc3ḄWXஹ$஺⚪117⚪118118ஹᓣZ;ᵫR=50cmḄ\]68ᱥḄ^_=ᦇ2”4bc_4dce஺,Ḅ0£,45hI"#12M3Ḅᐰ$a஺

59119ஹ!Gjkl012hI3MḄᐰ$ᙠ!m^no-Ḅpaឤ60஺஺E^rs#ᙶ᪗%=°,@஺,GḄ45ᐸ-BḄᐵz஺

60⚪119⚪120120ஹᵯᵫ{\1245-2./Ḅ3ᡠ|ᡂ஺ᔜ?5=30CE&6=75KG=40E'1Ḅ~=100"mii,{\-,8ᱥQḄ45{\ABmADm23Ḅ$஺121ஹ;᪀oOA4஺jlO஺.kḄR,r,,Ḅ145+#M3Ḅ஺122ஹ/ᩚ;᪀oOA40cm,/ᩚAB100cm஺ᒴn=180r/m”஺,+#/ᩚḄ45ᐸo3MḄᜧ஺⚪121⚪122

61A123ஹABᩚḄAV☢4Uᔣᩚᙠ^nos-RḄ.kᙊᕜJᑗ஺,ᩚḄ0-Ḅᐵz஺⚪123⚪124124ஹ/ᩚ;᪀5%o0tAs-3ABQdḄ4=,”-0஺2ᚖN##°஺2-02BᡂINeABᩚḄ0202BᩚḄ03஺125ஹR=0.5m,ᙠᚖN☢ᑁNW⍝¢£¤஺!"#¥0Ḅ¦§¨"஻$"஺="//,-ᙢ☢ᚖNḄN¬V3%.2Ḅ$஺

62⚪125⚪126126ஹ+;᪀oᙽAḄ4=35/5,“4A=4d஺ᙠ+#AC=BC,a=30,#CDᩚ஺127ஹᙠ®᮱2ᧇz±o7#ᧇ$"ᧇ5²³Ḅ´µf,·☢¸a,ᔁºḄ´µF,¼½ᑖ¾ᙠRḄ012¿ᶍ᥅Âè஺,7#$ᙠᔁº2Ḅ¨Ä஺

63⚪127128ஹ·☢¸a=30°,ÅÆ´µm=2ᔴḄ8ᱥ·☢ᔣ2È10m஺᝞᥅Âzᦪ/=°1,ᡠὑḄËÌÍÎÏ129ஹ᝞ᡠ+Ð᤯78;ḄÐ0.36m,_ÒᙠVÓᵨ¨F=20N,78;ᒴ,ᐸn=4r/mh,_ÒᙠlOminᑁÕḄË஺

64y⚪129⚪130130ஹ/Ö¬ᙽABḄ×ØÙ~;401,ÚឋzᦪC=4.9N/mm,,ᙠ¬ᙽᑖ&Ü4Ý^ᑮ4Ḅno×ឋ¨ḄË஺ᔜ3Ḅᙶ᪗ß?»131ஹ\Ḅ500mm,\Ḅá¨ᑖ&1800N600N஺@\Ḅ120r/min,,Iminᑁ\Ḅá¨ᡠÕḄâË஺132ஹãäåæ;ḄQ⌕èᑖßI.kᩚ2Ḅé┴M,ᩚ¼jOl஺ᶍëᩚḄ´µìÆé┴½´3KíḄ=5஺,Mᵫᨬ®AðᙢñòᨬóB#Ḅᶍëlô᥅Âe஺

65Ti⚪131⚪132133ஹ4ðᵨƳᙽõö@³ᙽᙠᙢ☢ᓃImKísøùú,³ᙽ-ᙢ☢Ḅ᥅Âzᦪû஺&E]ü134ஹ´3Aýᑮᨵ¥¨FḄÓᵨ¨¥ᙠᙶ᪗Ù30,ÿF=/l,ᐸ=8-ộ2,ḄᓫN,ᐸḄᓫm஺ᙠAᵫ4ᑮ4ḄᡠḄ஺!஺="#=ᵫ$஺

66⚪134*⚪135*135ஹᱥ.A0Bᔜ3G,067G‘>4:;<3G,=>ᡂ@ABCrḄᒴᙊG஺HIJKḄLMᱥ.AḄNODQ᦮STUḄV஺136ஹX᳛ZP=20kWḄ`abD=2E/SḄNOcᓣ3ᱥeQḄᨬᜧh3L஺137ஹ*lᙳᙊGLZM,@AZR஺IpMᙊGbqNO®ᑖtuv3wḄCi0y3w2Ḅ0ijQḄV஺

67(b)⚪137*⚪138*138ஹᚆ{|}3P,~Sa<3Q஺a<ZᙳᙊG@AZR,

68141ஹᙳᩚ0A3.37m,ᙠᚖ¡¢☢ᑁuᐸX0j.MᩚᙠᚖQ¦A§ᜧḄNO¨©ᩚªjᑮ«¢஺142ஹ¬<LZPiḄ®j@AZ᜛ᜧ"<@AᑖtZR0r,ᱥᙽA,BḄLᙳZf±☢²±qZaHI᥅´Bᱥ☟µ¶X·ysQḄNO஺143ஹᵯcᓣ¹cᓣ3PḄ3ᱥ஺!¬<3Qw஺Ḅ®j@AZ᜛"<@AZr,ᵯ¹Ḅº»ZM3ᱥḄ¼NO஺⚪141*⚪142*⚪143*

69