本帖最后由 GJM 于 2009-12-5 21:43 编辑
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底下是小弟做AutoMOD里面PDF练习的(Exercise 5.9)逻辑文件但问题是,程序只Run到Machine A和Machine B就没继续下去! X9 K5 ?( ]( E; U6 M6 H
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不知道是哪里出错,另外这题和Exercise7.1的题型类似,请问若要符合Exercise7.1的题意又该如何修改呢?请各位先进指导,谢谢!/ M+ z( w; X: s' ~2 o
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begin P_something arriving- K1 Q* F& N0 G! k# E5 W! K
move into Q_wait
) h \2 B" h" ^6 T move into nextof(Q_mA,Q_mB,Q_mC)/ D7 R2 D' h# y
use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min+ W% U; Z' H( v9 f) d- t* D
send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)# T* C5 N& G# y4 c, L" |" o
send to die
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begin P_mA_down arriving
: f- {) ?; H( X while 1=1 do
5 N7 k3 a7 v; G; c, ?) _3 C begin
) G, O! H9 {. N% r wait for e 110 min4 z$ U7 Q. G6 e' T- \" @
take down R_mA
2 y) y! y; c- S0 I$ {! o- { wait for e 5 min
# @! U4 s9 e) {: h9 x5 r0 N2 g bring up R_mA
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end+ T( v. k: [" d9 @8 A/ _7 W
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begin P_mB_down arriving
0 Q4 M) r$ w8 n- I5 p- c while 1=1 do6 T' R/ k: [4 ?5 j. P: x5 o
begin
) K; h/ s+ V$ D wait for e 170 min
/ [' [1 l8 ]& { ~7 y. s take down R_mB6 `3 j4 w6 G! p5 Q% N
wait for e 10 min* z8 `$ L# `# Q) }8 h
bring up R_mB. I5 k/ N; B6 b d" @( U% s3 L
end4 [8 ]0 U1 M H' e0 h
end
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begin P_mC_down arriving
; ` {; c# w, h% y; d$ }3 w while 1=1 do
' C& V8 J @; { M" f, x+ C3 U% j8 t begin
% `% L4 U( q. @. a/ {3 F wait for e 230 min
. x( Z! I& N: m% q5 T take down R_mC
' w7 N2 w Y* }8 M% b wait for e 10 min
) |% y0 Y8 [, h+ }1 O6 y bring up R_mC# I; F: Z. ]9 z* G) e0 |2 x
end8 t0 z0 Z: i7 V
end7 J5 D4 T3 J, R; q r
/ c# D. }- w% w P" S3 Jbegin P_mA_clean arriving
6 J6 a( j( ]1 ~8 H8 b while 1=1 do
% z) T, T5 ]' }$ X/ K# q begin+ a/ [: ?" W9 B
wait for 90 min3 S, z* i: O8 o/ `7 x, _7 u
take down R_mA
2 [& ^: b1 }6 U, f3 u: f wait for 5 min5 e9 H% h3 t$ T/ U \
bring up R_mA
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end
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! ^) o, p* }3 ] ?! `. Tbegin P_mB_clean arriving
) w7 P( F6 u' `+ i( n! W. i while 1=1 do4 l! j3 h- o) Q/ o
begin! ]8 r* m4 C9 _3 i- t, Y
wait for 90 min
1 ~8 y, i+ n, X G take down R_mB
4 B* e. C0 z* W; z+ C wait for 5 min" A l6 c. }' c0 S( E& M+ a
bring up R_mB
' u; ^5 t: W2 J' Y* Y$ m( R+ N8 N0 ` end
' g8 D8 M$ z8 F. y- uend4 F2 @1 @1 Y0 }! t
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begin P_mC_clean arriving
0 @8 l+ P* ? n: t! b$ A: f! j/ H$ b while 1=1 do
- i$ o [. C0 P' t9 n begin
$ s' r4 c/ w; a7 C) c wait for 90 min
, D% v+ ~; R" B* @+ K: k take down R_mC* c0 V) i8 w* M
wait for 10 min
% n* B3 d4 W$ ^" O bring up R_mC
. Q1 m% v ?9 D& ^% r$ z7 o' \ end
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. A7 }! O: x* {, RExercise 5.98 b3 C3 q9 `7 y7 @+ j
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Create a new model to simulate the following system:
V6 R% c' }2 {6 E4 U) zLoads are created with an interarrival time that is exponentially
5 U+ D2 z% }6 m$ h, z% tdistributed with a mean of 20 minutes. Loads wait in an infinite-1 @* s' A W7 K! w- o+ c/ X
capacity queue to be processed by one of three single-capacity,
$ P7 m; B3 f3 T* yarrayed machines. Each machine has its own single-capacity queue
( Q* H3 v' A3 O% Mwhere loads are processed. Waiting loads move into one of the three 4 @$ G, D" B6 g
queues in round-robin order. Each machine has a normally
, n$ ?* x: ?6 K; J4 ^& Z2 }: ]distributed processing time with a mean of 48 minutes and a standard 3 S- E7 E1 T, X c/ [4 J
deviation of 5 minutes.
. W& u+ a' E3 w* M: EThe three machines were purchased at different times and have , q3 S) ~9 |: G3 b) i( a
different failure rates. The failure and repair times are exponentially : \1 U+ t x# r* `1 ^
distributed with means as shown in the following table: 2 K) N+ s' T; ?- z! g I* H
Note The solution for this assignment is required to complete ! D* |" o: O, v M
exercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of
7 R1 j0 Y r# e9 Syour model.
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MachineMean time to failMean time to repair
1 x" J9 }. h) j# X+ {A110 minutes 5 minutes
) }: e! e+ ^8 z, S6 AB 170 minutes 10 minutes4 V4 u$ ^" q) _9 n/ i
C230 minutes 10 minutes
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The machines also must be cleaned according to the following ( \5 Z C' a4 |% ~* ^1 j8 \
schedule. All times are constant: 9 p# l/ M% @. @" _; i. ^
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MachineTime between cleanings Time to clean- _! ^, f& o% K0 j) C$ g, D3 [
A90 minutes 5 minutes7 x0 k$ @9 r9 x6 D
B 90 minutes 5 minutes& B1 V2 P3 r% [7 t% c8 `! @9 w; o
C90 minutes 10 minutes3 V [7 h4 P5 e0 W8 ?4 p
4 s' S2 m( @+ u) B* }+ i4 j# APlace the graphics for the queues and the resources. 4 t9 G' h l: r9 B; h
Run the simulation for 100 days. V3 q. G4 }, u ]* I
Define all failure and cleaning times using logic (rather than resource
3 ?1 F2 }! H! }8 \! fcycles). Answer the following questions:+ |6 w' ^. p2 N+ w6 \
a.What was the average number of loads in the waiting queue?( i9 N+ n7 `" F5 A3 l
b.What were the current and average number of loads in Space? " _% U8 U# ]8 _$ ^6 K6 ]/ C. b; u
How do you explain these values?
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