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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,
7 \  {4 ~- F4 Q% i4 z$ H, I  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.0 K) T+ n9 l; d. @
  Loads are processed by each operator for the following time:
# R1 g5 Q5 }9 d/ l  l. n4 e' a( C4 ^& d  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" O5 x8 H1 {4 V' m  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.$ s; @, `( v4 \$ }1 w: x
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.  L3 ]  \9 v# H+ P" e
Send 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.8 X; {- i$ A# F- l: \$ W2 p
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问题:
: `# ]8 P# G% }3 `6 AAfter running the model for 10,000 days, what was the average number of loads in each process?" J  ?, q; j+ ^6 y$ U. C

4 G' i9 z7 h; x不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
; a8 p  ], r- w8 pmove into Q_wait /*Capacity is infinte*/
) Z/ {$ g2 {; ^" ^6 ^move into Q_process /*Single capacity*/
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& c* [. t! r6 [( d: P& F& quse R_A for n 60,10 min /*Resource A*/
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send to P_B( ]  j/ d$ U! x0 Q( H- t$ w5 i
end
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% z+ l. x: w! y1 T& ^P_B and P_C is similar
( O7 x' Z  {3 m6 k9 I' striangular 30,60,90 min
- i8 V1 H2 a( g1 fu 60,30 min2 z' t' |( i1 g; e1 p

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+ e  [( l% k9 J: {- kin P_C, you need to send to die.$ p0 v$ H0 w1 L( t% |
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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.8 K9 ^4 {5 q; l0 |- _% z
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  [, w5 U8 ]; v" x" Z3 q+ N4 n
Remember 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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