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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,& K/ l+ B: K( [; T9 h  n4 k- `
  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.
8 P' O/ o: v, x$ Y; u' P  Loads are processed by each operator for the following time:
  X3 r3 k  k2 [: E* @5 L" D  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.0 y* n. Q! _8 W' T* ^4 u3 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.8 ]: O: E1 ?! L' j' R! K
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
* b" Y; F; M* `! R: h* @  nSend 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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问题:, f0 m- O1 q+ M
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
; f* ?& i# E, i6 Xmove into Q_wait /*Capacity is infinte*/+ D+ d) r& ^, t. H9 M. f
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
% A5 N. g2 r7 V, d6 Xend/ v* k$ `/ a& D6 M! C" |" z1 J
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P_B and P_C is similar. m- R# F! j1 `5 V& h
triangular 30,60,90 min: z) V" i1 t3 O9 @& i  Z
u 60,30 min
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& e. }' f% r& t: }8 s0 x; Y6 Uin P_C, you need to send to die.5 d8 z$ c( L9 v; ?9 g5 i/ P- U

" H& r7 ^8 U" [! dThen 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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