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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,
1 _9 q# c& H0 d/ g3 X  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.
& s$ n# F- s1 x1 k8 U) o  k! Y  Loads are processed by each operator for the following time:
/ F3 n6 C& e, |: |0 Y/ _8 a( X( x  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
4 h4 s2 Z2 J8 K  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 @0 G4 r( k8 B  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% f& w# U' W, A; z- ]+ _# v+ M
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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" p+ ?, D' ]* r+ K$ E3 \) {4 U9 H问题:8 F( P) t4 g9 M8 }2 F
After running the model for 10,000 days, what was the average number of loads in each process?
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& g  a+ `( E& K; n* Y1 R1 ]不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving' Z% ]4 I" |. U% @8 e. T; k, _' Y9 ^
move into Q_wait /*Capacity is infinte*/8 Y4 \" V+ K( b  @$ \
move into Q_process /*Single capacity*/
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) N; I1 |0 J+ x& s& t- Quse R_A for n 60,10 min /*Resource A*/' u2 g( c8 W% I  B" g

5 H6 B& L, g3 P( G# Ksend to P_B
. `" x; [9 K8 B% ^1 {- h# ?: T1 [end/ Y2 @: |7 f7 j8 ^3 l
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P_B and P_C is similar
$ _) d; C2 `# [# ^2 S. Ttriangular 30,60,90 min
- i; M/ V  A. t2 U( b0 w# ~u 60,30 min
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in P_C, you need to send to die.
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# t" E% B7 |( eThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.- E3 r$ E, `" g* r% x

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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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