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1. Phn 1 Chng 2 Cc ch tiu thit k my v chi tit my Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

2. 2.1 Yu cu chung ca my TK 2.2 bn 2.3 cng 2.4 bn mn 2.5 Kh nng chu nhit 2.6 Dao ng v ting n 2.7 tin cy 2.8 Ti u ha kt cu 2.9 La chn vt liu trong TKM Mn hc C S Thit K My Slide2.10 Tnh cng ngh ca CTM 2.11 Dung sai v lp ghp 2.12 nhm b mt 2.13 Tiu chun ha trong TKM Chng 2 Chng 2: Cc ch tiu thit k my v chi tit my 3. 2.1 Yu cu chung ca my thit k:

Nhng yu cu chung vthit k ch to :

Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Nhng yu cu chung vvn hnh :

Nhng yu cu chung vx hi :

tin cy cao

Nng sut my

Gi thnh my

Gi thnh gia cng

Cht lng gia cng

T sut li nhun

Tnh c ng ca my

Bo m kh nng lm vic

Tnh cng ngh cao

Mc quy cch ha, tiu chun ha cao

Mc tiu hao nguyn vt liu

Kh nng pht minh sng ch

An ton

Thun tin

Mi trng

4. 2.2 bn: 2.2.1 Khi nim c bn: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Nhng dng hng ch yu lin quan n bn ca chi tit my:

Ph hy mi

Bin dng do

Ph hy gin

Phn loi bn ca chi tit my theo v tr:

bn th tch

bn tip xc

Phn loi bn ca chi tit my theo tnh cht ti trng ngoi:

bn tnh

5. 2.2 bn: 2.2.1 Khi nim c bn: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Cc phng php tnh ton bn ca chi tit my:

Theo ng sut cho php

Theo h s an ton

Theo tin cy

iu kin bnc bn:

Ba bi ton c bn lin quan n bn:

Kim tra bn

Thit k

Xc nh kh nng chu ti

6. 2.2 bn: 2.2.2 Ti trng v ng sut: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Phn loi ti trng theothi gian :

Ti khng i

Ti thay i

Ti va p

Phn loi ti trng trong tnh ton:

Ti danh ngha

Titng ng

Titnh ton

Phn loi ng sut theo tnh cht ti trng ngoi:

Sn Forex.com

ng sut tnh

ng sut thay i

Chu k ng sut:

Khng i (n nh), cc c trng:

Bin ng sut

Gi tr trung bnh

T s ng sut

Thay i (khng n nh)

ng sut tip xc:

ng sut tip xc

ng sut dp

B mttip xc

S phn bca ng sut tip xc

ng sut tip xc:

Cng thc Hertz

Vi vt liu kim loi

Hnh tr tip xc vi mt phng

Hnh cu tip xc vi mt phng

Chu k ca ng sut tip xc v hin tng trc r b mt.

9. 2.2 bn: 2.2.3 ng sut cho php v h s an ton: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

ng sut cho php v tnh ton thit k theo ng sut cho php

ng sut gii hn (bn, chy v mi) v tnh ton thit k theo tin cy

Trng hp ng sut khng i:

Cng thctnh ng sut cho php

Cng thc gn ngtnh ng sut cho php

Trng hp ng sut thay i:

Cng thctnh ng sut cho php

Cng thctnh gii hn mi theo tnh cht ca chu k ng sut

10. 2.2 bn: 2.2.3 ng sut cho php v h s an ton: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

H s tui th:

Cng thc tnhh s tui th

Khi schu k lm vic ln hns chu k c s

H s an ton: l t s gia ng sut gii hn v ng sut ln nht

Khing sut khng i

Khing sut thay i

Vi trng thi ng sut phc tp

11. 2.2 bn: 2.2.4 Gii hn mi v s chu k lm vic tng ng: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Cc bin php cng ngh:

To phi c bit to lp b mt c ng sut d nn

Nhit luyn v ha nhit luyn b mt

Gia cng t bit to lp b mt c ng sut d nn

thtng quan gia gii hn mi v s chu k lm vic tng ng

S chu k lm vic tng ng:

ng sutkhng i theo thi gian

ng sutthay i theo thi gian

ng sutthay i lin tc theo thi gian

2.2.5 Cc phng php nng cao bn mi:

Cc bin php kt cu thit k: gim hin tng tp trung ng sut

12. 2.3 cng: 2.3.1 Khi nim c bn: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Vai tr ca ch tiu cng trong thit k chi tit my

cng th tch

cng tip xc

cngth tch

cng tip xc:

Gia con ln v mt phng ( cng thc Belaev )

C tnh n nhp nh t vi ( cng thc Votinov )

2.3.2 Tnh ton cng: 13. 2.3 cng: 2.3.3 Cc phng php nng cao cng: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Dng vt liu hp l (Module n hi t l thun vi cng)

Chn hnh dng tit din ngang hp l

Hc Forex

Chn kt cu chu ti hp l (kt cu i xng, u tin ko nn)

S dng v phn b cc trc hp l tng cng tip xc

Dng i trng to bin dng ngc b tr

Phi hp hp l v cng ca cc chi tit my trong cng h thng

Gim bin dng cc b ca cc chi tit v, thn hp

14. 2.4 bn mn: 2.4.1 Khi nim c bn: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

ng cong mntheo thi gian

i lng c trng cho qu trnh mn:

Lng mn

Cng mn

Cng mn i vi ccb truyn n khp

Tc hi ln chi tit my ca qu trnh mn:

Gim chnh xc

Gim hiu sut

Gim bn

Tng ting n

15. 2.4 bn mn: 2.4.2 Tnh ton bn mn: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Theop sut cho php

ng cong mn

S dng vt liu hp l

Gim ti cc b mt chu ma st

Bi trn, lm ngui tt

Gim lng ht mi ri vo vng ma st

Thay ma st trt bng ma st ln

Bo m mn u cc chi tit trong cng h thng

Chuyn mn vo cc chi tit r tin, d iu chnh hoc thay th

S dng cc kt cu iu chnh khe h khi mn

2.4.3 Cc bin php gim mn: 16. 2.5 Kh nng chu nhit: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Ngun sinh nhit trong my mc

Tc hi ca nhit trn my mc, thit b:

Gim bn

Gim tnh nng bi trn ca du bi trn

Thay i cc khe h lm vic

Thay i tnh cht ca b mt lm vic

Gim chnh xc ca my

Cc bin php nng cao kh nng chu nhit ca chi tit my:

Tnh ton cn bng nhit cho my

S dng vt liu chu nhit

S dng h thng bi trn, lm mt

17. 2.6 Dao ng v ting n: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

nh hng ca dao ng trn hot ng ca thit b

Tnh ton tn s ring phi c tin hnh cho ton h thng ch khng cho tng chi tit my ring l

Cc bin php chng n cho my mc thit b:

Tng chnh xc v cht lng gia cng

S dng cc kt cu c kh nng gim hin tng va p

S dng vt liu c ma st ni cao

S dng cc b phn gim chn

Ting n sinh ra do va p vi nhau ca cc b phn trong my mc thit b

18. 2.7 tin cy: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

C s tnh ton tin cy bng l thuyt xc sut

Ch tiu tin cy rt quan trng i vi cc my hoc dy chuyn m s hng hc ca mt chi tit s dn n ngng tr cho ton h thng

Cc bin php nng cao tin cy:

My cng n gin t chi tit cng tt

Cc chi tit my ca h thng nn c tin cy gn bng nhau

S dng cc chi tit tiu chun ( phn tn tui th nh, cht lng cao, d tm cho vic thay th)

Thit k cc chi tit d hng sao cho d thay th, sa cha

Cctnh ton kinh tda trn tin cy ca thit b

19. 2.8 Ti u ha kt cu: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Th d vto phi

Th d vgia cng va ngcc b mt cn thit

Th d vgim nguyn cngtrong gia cng phng

Th d vgim nguyn cngtrong gia cng l

Th d vlp rp

2.9 La chn vt liu trong thit k my: 2.10 Tnh cng ngh ca chi tit my: 20. 2.11 Dung sai v lp ghp: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Dung sai

Lp ghp

Biu dinl

Biu dintrc

H thngl

H thngtrc

Lp c di

Lp ckhe h

Lptrung gian

H7/k6 H7 /k6 H7/ k6 A D H S U a d h s u H7/k6, H9/d9, H7/h6 D11/h11, P9/h9,E9/f8 H7/p6, H7/r6, H7/u8 H7/e8, H7/g6, H7/h6 H7/js6, H7/k6, H7/n6 25 +0,025 -0,005 21. 2.12 nhm b mt: Mn hc C S Thit K My SlideChng 2: Cc ch tiu thit k my v chi tit my

Cc cp nhm b mt

2.13 Tiu chun ha trong thit k:

Nhng li im ca tiu chun ha:

Gim chng loi chi tit my thit k

Tng cht lng sn phm, tui th chi tit my

Bo m tnh lp ln

Gim cng sc thit k

Cc cp tiu chun ti Vit Nam:

Tiu chun Vit Nam TCVN

Tiu chun ngnh TCN

Tiu chun vng TCV

Tiu chun c s TC

Cp nhm Ra Rz 1 320 2 160 3 80 4 40 5 (5) 20 6 2,5 7 1,25 8 0,63 9 0,32 10 (0,16) 0,63 11 0,32 12 0,16 13 0,08 14 0,04

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