rigid bodies beam lecture note
TRANSCRIPT
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D B
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2D
B
E E
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.
F B D
A
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.
: )
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, F
.
. H
F
. (
F F. F F
, F
.
.
. H,
.
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:1.
.
2.
.
3.
,
, G.
4. C
FBD
. F
.
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FBD 100 .
:
1. , , A, A A. (
,
. )
2. 100* 9.81 = 981
G, 3
A .
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H E EACH HAG A A F 300 G AE ED B HE
FED E F HE AC. EED DA HE FBD F EACH
E AD BH E GEHE.
1.
H ,
.
2. : A 2943 .
A
, ,F,
.
3. :
A B (
3 )
4.
FBD (
)
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A ( ) ( )
C ..
. , . A 2 .
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:
.. ,
.
. A
.
:
/.
E
.
:
,
. E
.
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( ),
.
, .
.
:
E ().
, , . .
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()
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: F A B
:
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F A B
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: , 6:
:
:
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F A B :
H, AC=CD=DE=EB=3
:
HA = 10 ( )
A = 0.833 ( )B = 0.833 ( )
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F A B :
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,
.
AA F'
, ,
AA F, . ' .
.
() 1, 2, 3
1 2 .
, ' .
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, .
,
AA AA . ,
AA ' ... .
, 1,
2 3 1 2
F.
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H
B .
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.. ..
B. .F
.
, ,
' . , .. ().
' . .. ().
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,
F ,
..
,
F = 0,
B
B:
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