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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,
; a* y& c6 Q, q: v( e; U+ S; r! ]  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.
/ e, u! _9 @$ V3 v" u+ f' p  y  Loads are processed by each operator for the following time:3 K3 L6 |  m3 _
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 i9 V7 C  x( q
  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., d+ f" }2 g# h% e7 B
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 ~' c8 G- @) ^% R) D1 vSend 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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$ A0 U  ~" S  k( i问题:9 `( K3 {$ p' u& s- \) q
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 arriving6 P3 W5 V; F4 @% A3 q! v
move into Q_wait /*Capacity is infinte*/) e2 Y1 C9 s0 j* l# d9 e5 _; o9 |
move into Q_process /*Single capacity*/+ K* m, z, `) k* o$ I/ m
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use R_A for n 60,10 min /*Resource A*/. M" c: B4 N4 l- V
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send to P_B
6 _$ x2 b4 e. }5 H" j  _) eend: B7 G7 Q) U3 D$ A+ f# b

3 R3 k* J% ?5 `) q5 `P_B and P_C is similar
8 T; D. y5 b% p! d4 Mtriangular 30,60,90 min
4 k. I; p' {0 R1 G+ vu 60,30 min
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in P_C, you need to send to die.3 Y: M  R$ Z5 J5 E$ Z" k' S, O

: i% a1 [2 S' K# BThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.  }- r6 f* g- O4 p- {' Y
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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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