ИССЛЕДОВАНИЕ МЕТОДОВ КОНТРОЛЯ СРЕДНИХ ПОКАЗАТЕЛЕЙ БЕЗОТКАЗНОСТИ ВЫЧИСЛИТЕЛЬНОЙ ТЕХНИКИ

  • Published on
    04-Apr-2017

  • View
    215

  • Download
    2

Embed Size (px)

Transcript

  • ISSN 1028-9763. , 2005, 3 180

    621.192 (035)

    .. , .. , ..

    Abstract: Methods of planning are submitted with the purpose of the control of an average operating time over refusal of products of computer facilities on the basis of use diffusion distributions, and also exponential distribution. It is marked, that volume of tests (the minimal number of the samples necessary for tests) on a basis of exponential distribution are essentially overestimated in comparison with similar plans of the control over a basis diffusion distributions. Key words: failure, an average operating time to failure, the plan of tests. : , . , ( , ) . : , , . : , . , ( , ) . : , , .

    1.

    .

    , -

    ,

    .

    .

    ( )

    .

    .

    2.

    .

    , .

    , , ,

    . , ,

    , .

    , , ,

  • ISSN 1028-9763. , 2005, 3 181

    ,

    .

    , ,

    .

    , ,

    : T T ,

    TT > .

    : TT = (

    );

    T ;

    TT = ( ).

    ,

    ( ) ( ),

    ( T ) ( T )

    . , ,

    (T ), . ,

    , ( TT , ).

    , [1]

    T T ,

    , ( TT , ) .

    [2] ()

    , ,

    ( TT = ), ( TT , )

    .

    , T ,

    , ( TT , )

    .

    ( TT , ) T , 50%

    . ( TT , )

    ,

    ,

    .

  • ISSN 1028-9763. , 2005, 3 182

    , ( TT , ) T.

    ( ).

    () ,

    , , , ,

    .

    , ( )

    DM -, T :

    =

    =

    RTt

    Tt

    RTtDMTF

    /,;)(

    ,

    (1)

    ( ) ; R ( , T ); ,t ( ).

    (1) :

    ;422

    12222

    ++=

    R

    U

    R

    U

    R

    UTT

    .422

    12222

    +++=

    R

    U

    R

    U

    R

    UTT

    (2)

    =

    ++=

    R

    U

    R

    U

    R

    UTTT

    22222 4

    221

    +++

    R

    U

    R

    U

    R

    U 22224

    221

    = .2T

    (3)

    D ,

    T

    TD = . ,

    (3)

    .;D

    TTDTT ==

    (4)

    DN-

    ,

    :

    ./

    2exp

    /,;)(

    2

    +

    +

    =

    =

    RtT

    TtR

    RTt

    Tt

    RTtDNTF

    (5)

    (5), , (2),

    :

    ;;1

    =

    RTT

    .;

    =

    RTT

    (6)

  • ISSN 1028-9763. , 2005, 3 183

    ( );Fx ( TT / TT / ), DN- F .

    T T ( (4) (6)),

    , , ,

    . ,

    .

    , .

    . T T

    :

    ;2;1 == DT ;1,0== 9;1 == R . 1. ,

    DM -, T T (4):

    ;414,12 === DTT .707,0

    2

    1 ===D

    TT

    2. ,

    DN -, T T (6):

    =

    RTT

    ;1 44,19

    1;1,01 =

    = ;

    =

    RTT

    ;

    =

    9

    1;1,0 .692,0=

    ,

    .

    T T

    (4) ,

    .

    3.

    [NUT].

    T T ,

    TTD /= .

    N r ,

  • ISSN 1028-9763. , 2005, 3 184

    =

    +=r

    ii ttrNt

    1)( , it i - , t

    . :

    r maxt . ,

    .

    rr = maxtt

  • ISSN 1028-9763. , 2005, 3 185

    4.

    (, , D), , DN-

    . ( D,, )

    .

    1. 27.410-87. . . . 01.01.89. .: - , 1988. 127 . 2. 23773-88. . . . 01.07.89. .: - , 1989. 56 . 3. .., .. . .: , 2002. 486 .

Recommended

View more >