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[求助] 本人初学auto mod,有一道题目希望大家赐教

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发表于 2009-10-3 15:08:34 | 显示全部楼层 |阅读模式
刚刚开始学auto mod,这道题目搞不明白,希望大家看看 题目是这样的,
2 O6 Q% W% \, a) H& E; ]  Create a new model containing three independent processes, each with one operator. In each process, loads first move into an infinite capacity waiting queue, then into a single-capacity processing queue.) p0 f: n; I1 B0 @  R
  Loads are processed by each operator for the following time:+ O; {" E2 a$ Y6 }. B
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.' u1 |5 R. C6 ]1 c6 k
  Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins.
; ^2 o0 b/ `4 G; C  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
" R: Y+ r5 B& M1 Y; j/ XSend loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.6 q9 X# o8 I/ R  _  x/ {
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问题:. W# Z; b! e. _. Z: Y6 d* e
After running the model for 10,000 days, what was the average number of loads in each process?
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/ }) c6 L5 P& C+ q不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
) w1 y, o) X1 e9 `, l3 Rmove into Q_wait /*Capacity is infinte*/
2 u6 U6 n# w4 l7 Cmove into Q_process /*Single capacity*/
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+ N/ n0 O& O# s: {' Kuse R_A for n 60,10 min /*Resource A*/
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6 k; ^9 C, W- b) ssend to P_B" j( {; ]: P! |4 T! i
end6 D9 n# M; [' _: K- X

6 C) d% F2 c5 c, oP_B and P_C is similar
9 ?" \/ u+ {2 itriangular 30,60,90 min2 k9 }( M8 [3 S5 U
u 60,30 min
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in P_C, you need to send to die.3 j( I4 \- V2 f/ g. q- `
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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3 _( a" r& j  Q- Z$ r) @  U1 D, S+ yRemember to turn off the animation before you run your model.

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 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
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