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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," Y$ e& I. m, G; y# a. x$ d
  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.4 {0 C5 _* q1 ~
  Loads are processed by each operator for the following time:
9 C( K/ r: e+ Y  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) N9 v2 {& }) _! |) V: \6 P
  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.
$ M* ?3 M; c  m, Y( W  Worker_C does the job in a uniformly distributed time between 30 and 90 mins., x. E4 d# d- @( s
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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, ^* A7 Q9 }* ?+ h! ]7 S问题:
7 m4 G. B* |; f$ V" vAfter running the model for 10,000 days, what was the average number of loads in each process?
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6 _* q/ {' E% o8 N不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving+ G. v7 U3 M+ D6 |
move into Q_wait /*Capacity is infinte*/; G' d4 o% G5 E
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/0 `/ D$ X- c) l$ b

# n1 C7 h0 i5 e, i& a. Vsend to P_B
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- K4 L3 P8 L+ F. Y# q2 W8 QP_B and P_C is similar. I- ]4 j, v# ]# c( }5 G
triangular 30,60,90 min2 m4 j$ @1 g+ m5 i2 u0 W
u 60,30 min: x3 O4 E. Z; D/ U4 |& o0 |
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5 g6 Z4 ]8 \) b9 G  q" Q9 R  {) S3 ~in P_C, you need to send to die.9 }. x: [$ Q; E8 [9 r  q% p
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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.# e* i9 K' |" L& ]2 @
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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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