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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,4 x: j8 n+ R" u& L* I" w5 v* p& B
  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.. \/ z1 b- v5 g3 V( M
  Loads are processed by each operator for the following time:8 y9 t% E& P: Q  m! ?
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.+ ]% H9 h- ]2 V- h0 y( C
  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.( P" m( `: R" Q7 a+ ?* k
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
5 z: d. C- Z5 y4 \  l! lSend 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." R9 p! x' m' U9 r8 b& y, ~
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问题:
0 h& c! @. A" W0 ?* NAfter running the model for 10,000 days, what was the average number of loads in each process?9 {; F  g( @, {/ C: e
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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* E2 c8 Z* e) D( t8 f) o- Y' `% H
move into Q_wait /*Capacity is infinte*/. t+ J. u' |( K; P4 I' U$ q
move into Q_process /*Single capacity*/9 p% C" F( p! r& N) q6 _& ^& c) k
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use R_A for n 60,10 min /*Resource A*/! f: ^4 |3 ^9 O" M

2 o- m( d, O4 {( {9 dsend to P_B+ d) E6 n# l* N2 @! @, ]3 Y) F
end
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$ ^& N3 x" ?: w4 L" v5 k: @3 {P_B and P_C is similar
- Y4 q- X( E* j2 ]& Q/ h. l. N9 e  ctriangular 30,60,90 min2 V0 `; b7 s# W- @$ I# n! t
u 60,30 min
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/ M5 M9 x2 }) i( o' X4 a/ ~in P_C, you need to send to die.9 {/ [7 y4 {* i  h+ G. @

+ G9 v8 F3 N" l, PThen 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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