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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,
& \- G9 F- X" i+ Q+ }, j, ?4 Q) k7 O  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.6 n9 s/ v3 g' Z& ~$ C8 k
  Loads are processed by each operator for the following time:
' a' Q( z( _$ Z$ J7 t' _  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. K/ C0 e$ |* z8 `0 u2 g  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.0 ]* t: }9 m$ C" G) D5 m% M. C
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.  B$ ~- G2 p: J) B, d3 M
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.0 q, r$ F3 u( F  V% i& C* U  }7 |

$ G6 f$ [3 a( Q9 V/ j问题:' w9 _! B6 D# D1 w; ?4 M
After running the model for 10,000 days, what was the average number of loads in each process?
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$ }1 q/ h- a0 S3 ^+ Y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving. y* v0 _2 u! J) C
move into Q_wait /*Capacity is infinte*/
: n+ D8 L, l' M" Lmove into Q_process /*Single capacity*/
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' |8 K0 C" }2 N6 S! Yuse R_A for n 60,10 min /*Resource A*/
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send to P_B: z9 f; @- x0 e6 y" O* O
end
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0 _4 z$ i3 n0 i  k1 t, V2 W# d. EP_B and P_C is similar2 C' x8 C9 ~8 p' _/ ?# n( L
triangular 30,60,90 min
& N0 v) J1 t4 a* {u 60,30 min! a' ]" p1 Y, _- E- x

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+ }( w% n. e- Win P_C, you need to send to die.
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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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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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