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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,
' G( h# L( U$ y/ U1 ^( X0 h8 O" J8 h  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.
" D2 ]) b3 H1 c; x7 W: N' |  Loads are processed by each operator for the following time:
' @9 k4 V8 z" ]' h  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
/ h3 l  L/ l- o( f3 [. i  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.
$ H( B! i9 f6 b8 U! b# w- N& m  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
+ f3 H# A4 B, x8 \* L: {- ^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.
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& a% _+ s# k  ~4 n问题:
0 M- m" o4 n; U& [3 z6 \After running the model for 10,000 days, what was the average number of loads in each process?
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0 j' |- a' j' y+ i1 W不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
' F# k# r' t  pmove into Q_wait /*Capacity is infinte*/0 z+ |' _2 C$ l# s$ u5 w) c
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/- r  B( @" N$ Q% @4 ?; l
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send to P_B
# }& K0 A5 v6 vend
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P_B and P_C is similar3 U! r- `2 g# ?2 K
triangular 30,60,90 min  V" D, u, l1 I) T9 x- V% Z1 h
u 60,30 min5 e+ U& Q- {/ J7 j" h

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( w5 Q0 |, n( W+ T& @* Vin 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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1 u0 b+ B" t. i5 T% ]! c
# b, Y0 |; e2 ~8 A( WRemember 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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