Rigid Bodies Beam Lecture Note

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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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    , ,

    ' . , .. ().

    ' . .. ().

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    ,

    F ,

    ..

    ,

    F = 0,

    B

    B:

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