nrt - báo cáo
TRANSCRIPT
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MC LC
I. MC CH.......................................................................................................................- 3 -
II. C S L THUYT.......................................................................................................- 3 -
1. Phng trnh tnh cng !"t #$ h%&! !"t '() ngh%*n.................................................- 3 -
+. Phng trnh ,%-! %/n 0n 2 3h4n 3h5% 6ch th7c 05% #7% h8t nh!)/n.................- 4 -
9. Cng !"t #$ h%&! !"t r4)..............................................................................................- 5 -
:. Phng trnh tr;n............................................................................................................- 5 -
III. TI< T=>
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2 1
2 1
1 119
i
p p
P P P WD D
= =
- OPi > l" nUng /ut. ]ng /ut nghin > tn vt liu t< H1$n H2
2 1
2 1
1 119 i
p p
P P P W TD D
= =
I#TK
1 2,
p pD D
l" #h th ^! ngu)n liu v" /&n hMm, mm
- N$u nghin #h thF D C nh(n vi
4
3
- ]ng /ut tiu th ho ng E ^! m+) nghin
_ o/P U I =
>'ong =V `V in th$, a
bV Ang dcng in,
o/
V th
- eiu /ut ^! m+) nghin
100L_
PH
P=
+. Phng trnh ,%-! %/n 0n 2 3h4n 3h5% 6ch th7c 05% #7% h8t nh!)/n
b
p
p
dKD
dD
=
>'ong =V
V #hi lCng th l;) t'n '()
HV #h th ht
Y1, ZV h[ng / Zi?u th f tnh h(n hi ^! #hi ht
- ) th h(n vi + gi+ t' tEng ng, t! =
( )1 2
1 1
2 11
b b
p p
KD D
b
+ + = +
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- >ng %u+t t! *jt giX! '() th n v" n-1 v" gi& /k /k dng '() tiu huMn =
1n
n
p
p
Dr const
D
= =
.
( )1
1 1
11 n n
b b
n n n p p
KD D
b
+ + = = +
W!u = t! th!)1n np p
D rD
=v"o t! C
( )11 1
1_
1 n n
b
b b
n p p
K rD K D
b
+
+ +
= =+
vi
( )1 1_
1
bK rK
b
+
=+
eof( )log 1 log log _
nn pb D K = + +
- Y v" Z C *+ nh Z[ng +h vn
thBonp
D
t'n : th log log v" /u) '! h / g=
1K+v" tung g=
_ v"K K b.
9. Cng !"t #$ h%&! !"t r4)
100J
EFa
=
>'ong =V V #hi lCng vt liu Z!n Gu ho v"o '(), g
pV #hi lCng vt liu di '(), g
!V t@ / ht = th? lPt %u! '(), L
- >h /F a
t'ong th nghim C tnh nh /!uV
qBm '() mt #hi lCng ^! vt liu, #h&o /+t *+ nh1J
. ) vt liu cn li t'n '()
1F J v" '() li *+ nh C2J, ti$ t l) vt liu cn li t'n '() ( )
1 2F J J +v"
'() ti$ t.
>ng / + gi+ t'1 2 3 ...J J J+ + +
/ tim n $nF a
8
eiu /ut '() l" 100L n$u1
J F a=
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:. Phng trnh tr;n- Yhi t'n mt #hi lCng ! ht vi mt #hi lCng Z ht \, to th"nh hrn hC :ng
nht. >h"nh hGn ^! ht v" \ t'ong hrn hC ls tngV
qi vi ht V
A
aC
a b
=
+
qi vi ht \V
B
bC
a b=
+
- >h"nh hGn + ht / nh nh!u mPi #hng gi!n th? th ^! hrn hC t'n. Nhng hrn
hC ls tng n") h@ t ti #hi thAi gi!n t'n l" v v" #hng *ut hin nhXng )$u t
hng li %u+ t'Fnh t'n.- >'n th t$, thAi gi!n #hng th ti$n ti v C nn th"nh hGn + ht v" \ /
#h+ nh!u mri hGn th? th.- q? +nh gi+ m :ng u ^! hrn hC, t! f t'ng Zi + gi+ t' /!i Zit ZFnh
hEng t'ung ZFnh.
- N$u t'ong hGn th? th1V
^! hrn hC th = th"nh hGn th th ^! v" \ lGn lCt l"
1 1,
A BC C
, gi+ t' /!i Zit ZFnh hEng t'ung ZFnh ^! hrn hC th = / l"
( )
( )
2
1
2
1
1
1
N
A iA
iA
N
B iB
iB
C C
s N
C C
sN
=
=
=
=
- ai,A BC C
l" th"nh hGn ^! ht , \ t'ong hrn hC, t! th),A Bs s
"ng nh #hi hrn
hC = "ng gGn vi hrn hC l tng.
,A Bs s
h thu v"o nhiu )$u tt nhng %u)$tnh nht l" thAi gi!n t'n.
- >'n th t$, tw) thBo )u Gu ^! / m" t! *+ nh thAi gi!n t'n thh hC. q? +nh gi+
m! t'n mt hrn hC, t! = th? dwng i lCng #h+ l" h@ / t'n v" C nh nghS!V
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esI
s
=
- ai
e
l" lh huMn ls thu)$t
( )
( )2
1
1
A Be
A B
s N
A iA
i
C C
n
C C NI
n C C
=
=
=
n l" / ht t'ong t'Ang hC t'n vt liu 'Ai
III. TI< T=>
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- ]ho vt liu v"o m+) t'n, #hi ng m+), Zm thF #$ *+ nh thAi gi!n t'n. H
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- Y$t %u& h(n th '()V Yhi lCng Bm '()90,1+ !=
Bn! $ K%t &' th( n!hi)m ph>n t(ch r>?
@n r>? K(ch th/c r>? 1mm2 Kh-i ./0n! trn r>? 1!2
1 0,75 2,0
2 0,425 18,7
3 0,315 28,0
4 0,25 1,9
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Bn! L$ K%t &' t(nh to;n cho 4M th< .o! .o!
log np
D lognp
D
0,02220 -1,6537 0,75 -0,1249
0,20755 -0,6829 0,425 -0,37160,31077 -0,5076 0,315 -0,50170,02109 -1,6760 0,25 -0,6021
Bn! O$ K%t &' t(nh to;n hi)' s'=t r>?
@n r>? Th3i !ian ( )iJ ! ( )iJ ! Hi)' s'=t
1 5 33,4 33,4
88,132 10 0,8 34,23 15 0,6 34,84 20 3 37,85 25 0,1 37,9
Bn! $ K%t &' t(nh to;n IstQi th3i 4iRm Fs
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 27 84 0,2432 0,1729
0,2678 0,1956 1020 0,0148 0,0759
2 83 33 0,7155 0,00323 60 59 0,5042 0,02404 95 21 0,8190 0,02565 108 58 0,6506 0,00016 69 43 0,6161 0,00197 96 43 0,6906 0,00108 65 76 0,4610 0,0392
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Bn! #$ K%t &' t(nh to;n IstQi th3i 4iRm #Fs
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 55 56 0,4955 0,0268
0,0753 0,1037 1178 0,0138 0,1332
2 97 39 0,7132 0,00293 78 70 0,5270 0,01744 102 45 0,6939 0,00125 108 79 0,5775 0,00676 89 76 0,5394 0,01437 110 43 0,7190 0,00368 80 51 0,6107 0,0023
Bn! ##$ K%t &' t(nh to;n IstQi th3i 4iRm s
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 71 61 0,5379 0,0147
0,0642 0,0957 1105 0,0143 0,1490
2 103 69 0,5988 0,00363 59 31 0,6556 0,00004 88 73 0,5466 0,01275 100 45 0,6897 0,00096 85 66 0,5629 0,0093
7 101 32 0,7594 0,01018 66 55 0,5455 0,0129
Bn! #9$ K%t &' t(nh to;n IstQi th3i 4iRm s
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 67 112 0,3743 0,0811
0,1900 0,1648 1181 0,0138 0,0837
2 84 121 0,4098 0,06223 84 31 0,7304 0,00514 78 75 0,5098 0,02235 105 56 0,6522 0,00006 97 52 0,6510 0,00017 75 19 0,7979 0,01938 83 42 0,6640 0,0000
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Bn! #$ K%t &' t(nh to;n IstQi th3i 4iRm #9s
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 93 80 0,5376 0,0148
0,1267 0,1345 1257 0,0134 0,0994
2 67 92 0,4214 0,05653 80 96 0,4545 0,04184 94 70 0,5732 0,00745 107 60 0,6407 0,00036 91 43 0,6791 0,00047 107 65 0,6221 0,00148 81 31 0,7232 0,0041
Bn! #E$ K%t &' t(nh to;n IstQi th3i 4iRm s
+,' N J iAC ( )2
iA AC C ( )2
iA AC C s n e Is1 70 88 0,4430 0,0467
0,1206 0,1313 1279 0,0133 0,1010
2 102 65 0,6108 0,00233 79 55 0,5896 0,00484 98 103 0,4876 0,02945 114 83 0,5787 0,00656 88 66 0,5714 0,0077
7 96 50 0,6575 0,00008 99 23 0,8115 0,0232
AI. ?IE< CJ KI TH
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HSnh #
5 10 15 20 25 3032.5
35
37.5
40
$
in 4MiJ t
+. ?%n 0Nlog
thO
lognp
D
Bn! #$ Bn! s- .i)'
log -1,6537 -0,6829 -0,5076 -1,6760
lognp
D-0,1249 -0,3716 -0,5017 -0,6021
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-1.8 -1.6 -1.4 -1.2 -1 -.8 -.6 -.4
-.8
-.6
-.4
-.2
.
HSnh 9$ in 4M
log lognp
D
9. ?%n 0Nnp
D
Bn! #L$ Bn! s- .i)'
npD
0,75 0,425 0,315 0,25
0,02220 0,22974 0,54051 0,56160
log
lognp
D
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.2 .3 .4 .5 .6 .7 .8.
.2
.4
.6
HSnh $ in 4Mnp
D
:. ?%n 0N ,%-! %/n ch 5 tr;n thO thQ% g%Rn
Bn! #O$ Bn! s- .i)'
>hAi gi!n I/K 5 15 30 60 120 300
I 0,0759 0,1332 0,1490 0,0837 0,0994 0,1010
npD
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HSnh E
0 50 100 150 200 250 300 3500
0.05
0.1
0.15
0.2
Chart Title
$
in 4MI t
AII. K< LUhAi gi!n t'nV C *+ nh Z[ng thF #$ IZm t!)K nn / = /!i / nhng /!i /
n") nh, #hng +ng #?.
Yhi lCng 'ing ^! vt liuV vF u *!nh v" u n"nh = #hi lCng 'ing * *@
nh!u nn #hng t+ ng nhiu $n %u+ t'Fnh t'n.
>nh d v~ IgicnKV & 2 loi u u #hng = tnh d v~ vn nn %u+ t'Fnh t'n /
d d"ng hEn.
xu l) ti nhiu v t' nn = tFnh f t'ng, hnh *+ !o hEn.
W!i /=t t'ong %u+ t'Fnh $m u.
AIII. PH LC1. Tnh t(n th ngh%&' ngh%*n
J;c 4h? th ht goV
2 231,5 6 3,375 10,60
4 4
dV h m = = =
Hin th Z mft ht goV
2 221,5
1,5 6 9,5625 30,044 4
d
dh m = + = + =
- q? *+ nh #h th ht ngAi t! dung #h+i nim Ang #nh tEng Eng, = l"
Ang #nh ^! ht Gu = wng t@ / din th Z mft vi th? th. Ho = Ang #nh
tEng Eng ^! ht go t' #hi nghin l"V
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1
3,3756 6 2,12
9,5625p
VD mm
= = =
- |+ nh
2pD
>hBo nh lut \ond, vt liu /!u #hi nghin = 80L %u! '() t l" th l;) li t'n
'() 20L0, 2 =
>hBo gi&n :np
D , t! *+ nh C
0,4np
D mm
T(nh c7n! s'=t n!hi*n
- ]ng /ut ? nghin vt liu Inghin #hK t< #h th
12,12pD mm=
$n #h th
20, 4
pD mm=l"
2 1
3
4 1 1 6019
3 40
4 1 1 319 0, 2 10
3 20, 4 2,12
0, 08836 88, 36
i
p p
i
P W TD D
W
kW W
=
=
= =
T(nh hi)' s'=t m;? n!hi*n
- ]ng /ut tiu th ^! m+)
1 0_ o/ o/
220 5,4 0,8 220 3,6 0,8
316,8
P UI UI
W
=
=
=
- eiu /ut m+) nghin
88,3627,89L
_ 316, 8
PH
P= = =
+. Tnh t(n th ngh%&' r4)
- H! v"o gi&n :iJ t
Ang ong tim n $n Ang thng
37,9iJ =
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