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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* 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.: C; V- ^/ k* X6 {" ]" h% k
  Loads are processed by each operator for the following time:
0 }- W) B# W1 o! P% O  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., j! Q  t/ w, x4 y4 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.6 c! ?, m- [2 B# c  q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
0 n' v+ [7 U' T7 t3 xSend 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.8 P- C+ r0 A% A" U
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问题:$ Q/ w2 E3 c* R- P+ j# h! Q  O* r  Y0 L
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% s. A3 _0 Q8 {
move into Q_wait /*Capacity is infinte*/' I  ~3 n& w' ~6 d9 C, Y
move into Q_process /*Single capacity*/
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' O* q/ x4 [0 ^$ d2 P% M. Ause R_A for n 60,10 min /*Resource A*/
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/ W" N; }% [' ~) q  k8 a% W) Usend to P_B
; H) L5 H$ g, e0 c+ a" o0 g9 xend
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% L: [2 E8 R; M9 N6 R9 ?P_B and P_C is similar! F3 z6 ~- ]+ s; l: t2 @7 N
triangular 30,60,90 min) X0 O% X9 }: }
u 60,30 min
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in P_C, you need to send to die.( D3 Y; n  l7 \; ?
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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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+ n$ V2 D; Y8 R. cRemember 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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