本帖最后由 GJM 于 2009-12-5 21:43 编辑
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" J7 h; q+ C& Z+ [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
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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!
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begin P_something arriving
' H, W* p# X" t7 N move into Q_wait2 W) w/ S7 B' ^/ [# I s# p# A
move into nextof(Q_mA,Q_mB,Q_mC)
1 p7 P! X1 f+ T/ I5 H use nextof(R_mA,R_mB,R_mC) for normal 48, 5 min1 R p+ E- j8 M
send to nextof(P_mA_down,P_mB_down,P_mC_down,P_mA_clean,P_mB_clean,P_mC_clean)
0 f$ G( T3 O0 V# } send to die
* l' g# |" f- y1 gend( N1 x( n& w% @# N T& A# C
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begin P_mA_down arriving7 x3 M/ c8 C. h* d2 C
while 1=1 do : `! {; j1 q$ ^" X5 [$ x1 X4 A
begin1 X! N4 j5 R b0 @' |
wait for e 110 min
( S5 A: o0 i p b take down R_mA- Y* j* r9 d; k. g+ K# _0 c2 o6 ]
wait for e 5 min
7 {+ g' Y7 ?# M+ p bring up R_mA' W2 n+ I# o0 J$ `4 ~) G. c
end7 u: z8 _3 ^- s- d {2 j: L
end+ N- g& a* r8 Y+ [- l% F
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begin P_mB_down arriving
, k; S2 u! H- D5 W) ~ while 1=1 do
, w @9 g, M$ F9 k; O begin |( N `. t! B+ r2 g6 ^
wait for e 170 min
/ T1 o7 k: [" J" H5 o( U4 f take down R_mB8 p- B- Y, O2 S* y
wait for e 10 min( k% N+ V2 D; c# B1 o! Y8 a* b' g5 g
bring up R_mB, V; |% ^9 h* R- c( m
end6 m- w3 U1 J8 E) c
end+ P+ s l5 L+ E# F! p# u% n$ I9 _5 y
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begin P_mC_down arriving- e: v, h6 I$ n" |$ w
while 1=1 do 9 p' O! J/ [' A4 c Z3 R
begin
0 N. Q* H% N& t' I. _1 E0 q/ E wait for e 230 min0 Q9 V5 e5 @# ?" D
take down R_mC
7 v9 S: r* [; `, \" L$ R5 f) F wait for e 10 min
2 f+ n' B" ] P/ z bring up R_mC
f+ B4 b% h( N/ j end6 }# C1 t$ ?/ D/ M; Y
end* s" g( ?3 e0 ~& U5 Z4 Y# N
1 R6 o, E3 i% [7 b& p9 zbegin P_mA_clean arriving; y- F2 ? i7 C/ M; _: v; {5 p
while 1=1 do( i6 r. M9 F2 r4 F! | R
begin4 _1 K6 ]# l, y7 B M/ e
wait for 90 min
: K J) j# M9 I0 J take down R_mA
! C* D9 P4 w& z9 `7 t wait for 5 min( W/ _5 x6 n' L9 s4 `8 C1 S* o; Y
bring up R_mA
9 z8 i" V V& K end
8 m! g. ?6 I# g3 h4 B" Tend
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begin P_mB_clean arriving
5 ^- L- w8 D% z; l while 1=1 do
5 w! V) r7 z8 O# D begin2 r% _5 ^) n0 L. L) C' X/ O
wait for 90 min
- O+ U+ q }8 U, J- O' H0 ] take down R_mB7 z. p# O; }) p/ ?: F: h
wait for 5 min
5 W% _, A( n5 K0 M* a bring up R_mB
0 r( X* p* i4 k1 X1 w end
. o, X7 M" l$ V0 Gend
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begin P_mC_clean arriving
/ Q7 D- C J1 J% E5 K) Q3 U while 1=1 do
+ r' S, a& n9 Q* Z4 S. t begin
5 }% c3 A! h& ^% F T% @3 {1 f5 c wait for 90 min
+ I4 X# P+ o, l. d( y take down R_mC
% l f0 j7 A- e' [7 ^+ | wait for 10 min2 w% R% e; \! [" A/ {' z
bring up R_mC3 v v8 f3 F5 n' N* D# R# ?& d5 {' o
end
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7 N+ ]2 m3 F9 v- PExercise 5.9 a( [& }& r! G: g [
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Create a new model to simulate the following system: i$ M( {) l- |0 p
Loads are created with an interarrival time that is exponentially * C+ ^# z O4 u9 L. X) {
distributed with a mean of 20 minutes. Loads wait in an infinite-- N; x) g( K9 G8 e" y+ G
capacity queue to be processed by one of three single-capacity,
' n0 s4 k* O! y1 a/ z" xarrayed machines. Each machine has its own single-capacity queue
: L5 t8 ?* N$ w' t6 Swhere loads are processed. Waiting loads move into one of the three % I/ b6 u! }" d/ d6 f! z6 T
queues in round-robin order. Each machine has a normally
% f1 h5 O1 J; ?4 D8 Vdistributed processing time with a mean of 48 minutes and a standard
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The three machines were purchased at different times and have $ k% Y k0 r( j
different failure rates. The failure and repair times are exponentially
7 @8 ~* H' M1 v9 }distributed with means as shown in the following table:
1 G* m' A- E0 T- F' @6 ?; ANote The solution for this assignment is required to complete ; Z( h0 ~, Q4 C( x* M
exercise 7.1 (see “Exercise 7.1” on page263); be sure to save a copy of " O b3 d9 A2 W; ^4 d3 i( m
your model. 6 ~- E! [2 h+ x2 I
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MachineMean time to failMean time to repair8 m4 V! G3 k) {
A110 minutes 5 minutes! M4 X4 P3 U! r, B2 @2 v9 p
B 170 minutes 10 minutes) ?; m% y; s, C
C230 minutes 10 minutes
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: `0 ?& R( D; u1 F* z, `The machines also must be cleaned according to the following
2 Z; ~% \& u3 N7 r6 l" p9 {2 sschedule. All times are constant:
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5 i; q- t1 e- y" K2 }& UMachineTime between cleanings Time to clean8 N6 P9 C/ ]2 w7 Z6 I3 G& q
A90 minutes 5 minutes; Y7 W. x. c' E1 C6 q
B 90 minutes 5 minutes' m1 y( b) J7 ?5 h& }6 @# g% o5 R
C90 minutes 10 minutes
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8 u. ^/ F O& q7 V- m. Y" DPlace the graphics for the queues and the resources. : Q3 b: v* n5 }# I, n% B
Run the simulation for 100 days.- W5 H& r2 P8 C9 }# s
Define all failure and cleaning times using logic (rather than resource
2 ]' Y6 ?+ ? vcycles). Answer the following questions:9 G" w. n) [, D1 _& w0 H
a.What was the average number of loads in the waiting queue?
+ p# x# O+ y. {% [9 I5 @. v6 i2 Ob.What were the current and average number of loads in Space? : N$ \ B5 j$ X' z5 P) ~
How do you explain these values?
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