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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,
0 z  n0 `5 `/ s6 G+ r9 q; `. I  S  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.9 w( A* e) U( I5 N
  Loads are processed by each operator for the following time:, |( S5 \! u- ?0 j% _1 m
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.; Z/ C* s; |/ g( z$ L$ N8 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.
' l1 }. L3 u; t) K  Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ a- C# g9 T" x' O
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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6 l6 S2 G3 \- t; S7 e  n: k9 w问题:
* c, R! W7 S. o* t" e* _After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
' L' C3 `9 u: X) G2 g+ {move into Q_wait /*Capacity is infinte*/
" v0 C+ ]/ t. t2 z" x* umove into Q_process /*Single capacity*/
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, c4 B* z! G0 V' A1 V  ]2 xuse R_A for n 60,10 min /*Resource A*/( L4 \- t. a0 q5 r0 W' ]: m9 {
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send to P_B# F  T' ^( H4 X7 T+ ~3 e4 L- X% l
end( ]0 R- G9 Z, j- @! V$ ]+ S0 B4 `  g

( F, t* l; U2 o5 ]1 n8 q* A/ Y# F% pP_B and P_C is similar. E: p+ P/ q/ t& O9 R- w
triangular 30,60,90 min
; G6 n  z, n1 L% qu 60,30 min
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in P_C, you need to send to die.& w  _: j+ e0 @% W. W6 f# ?

! v2 v- W4 b' E8 q8 k6 c, IThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.& E. K2 F+ D4 ?2 ?1 S* [
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* k: c9 R; @! V9 p4 L* l" fRemember 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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