: 1-1 :

1-1

1.1 ak(t)=1,7 am(t) ak(t) a t am(t) a am(t)=m(t)lpm m(t)

Zpm kk

Sal

210 102 +

+= lpm- .

0 =2.5cm - na S=8.75cm - j k1=0.4 RA k2=0.125

:

UP

Z ak

kp=30 RA ; kp =35 GA u u =0.2 mm

7 521 62 5 0 8 7 5 1 6 16 12

.

.. . . . .

W o uz

W

d a

d c

= + + +

= + + + = m

20 40 16 1 644.bz WB b d cm= = =

16 2 6730 0 2

. %.P Uk a

= = 10 05 100 1 56644

. . . %STVZbz

AB

= = = ZP Uk a .

z - Bbz .

0 1 22 108 75 1 62 2 5 0 4 0 12510 0 0156

11 87

. .. . ..

.

pmZ

pm

pm

Sl a k k

l

l cm

= + + = + +

=

=

2

21)( 1a

ap

a

atam E

- a

t=0

aE . (210000 ); =bE 31500 MPa 1 . 1 = 1.0 RA 2 - . =2 0.5 ap

zAM CR

ap = ; CRM

cr b bzsM W f=

bzbzs fdf

+=

4

4.06.0 -

bzmbz ff 7.0= - 3 225.0 bkbzm ff = -

2 4.bzmf M= Pa ( Pa 30)

0 7 2 4 1 68. . .bzf M= =

4

0 40 6 1 68 1 7880 55.. . ..bzs

f M = + = Pa

Nm

20166 67 0 1788 3606 36 06. . .cr b bzsM W f kNcm kNm= = = = 97 56.g pM k+ =

+ pgCR MM

3/xhz =

++=

anAbh

bnAx 211

210000 6 6731500

.ab

EnE

= = =

6 67 10 05 2 40 51 11 140 6 67 10 05

11 41

. . .. .

.

x

x cm

= + + =

/

3 51 1 11 41 347 3

/ . ..

z h xz cm= = =

36 06 1000 75 8610 05 47 3

. .

. .CR

apM MPaA z

= = =

( )xhJ

MMn

p

pga

+= pJ

( )3 32 24

40 11 41 6 67 10 05 51 1 11 413 3

125403 6

. . . ( . .

.

p

p

bxJ nA h x

J cm

= + = + =

)

( )2

65 89 31 67 1006 67 51 1 11 41125403 6

20 6 206

( . . ). ..

. /

a

a kN cm MPa

+ = = =

.

=

2

21)( 1a

ap

a

atam E

2206 75 861 1 0 5

210000 206

0 00091444

( )

( )

..

.

am t

am t

= =

0 00091444 11 87

0 01085

1 7 0 01845

0 1845 0 20

( ) ( )

( )

( ) ( )

( )

. ..

. .

. .

m t am t pm

m t

k t m t

k t u

a l

a cm

a a cm

a mm a mm

= = == == < =

1.2 :

dozVV

20

g pg pg p

b ef

MV R

E J+++= l

1 116L

RK

= = 3

4554583 312

.id bbdJ J cm = =

2 4.bz bzmf f MP= = a

4

0 40 6 2 4 2 550 55.. . ..bzs

f M = + = Pam

Nm

20166 67 0 255 5142 51 42. . .cr b bzsM W f kNcm kN= = = = 51 42.crM k=

( )3 2 4125403 63

.pbxJ nA h x= + = cm

3 3

1g cr cref id pg g

M MJ JM M

= + J

3 3

8 8

4

4

51 42 51 42554583 3 10 1 125403 6 1065 89 65 89

0 00329456

329456

. .. .

. .

.

gef

gef

gef

J

J m

J cm

= + ==

3 3

1g p cr cref id pg p g p

M MJ JM M

+

+ +J

= +

3 38 8

4

4

51 42 51 42554583 3 10 1 125403 6 1097 56 97 56

0 00188265

188265

. .. .

. .

.

g pef

g pefg pef

J

J m

J cm

+

+

+

= + ==

20

ggg

b ef

MV R l

E J=

20

0

1 65 89 100 63016 3150 3294560 157

.

.

g

g

V

V cm

= =

20

g pg pg p

b ef

MV R

E J+++= l

20

0

1 97 56 100 63016 3150 1882650 41

.

.

g p

g p

V

V cm

+

+

= =

gr

gt VKV 0=

1 0 6 0 82'

. .rAKA

= = = 2.3

0 82 2 3 0 157

0 3

. . .

.

gtg

t

V

V cm

= =

0

0 41 0 30 71

m ax

m ax

m ax

m ax

. .

.

g p gt

doz

V V VVV cV V

+= += +=