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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,
6 F5 O. U2 C  ?7 `: h  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.
( l. g4 k8 z3 I8 `  Loads are processed by each operator for the following time:
2 M" W! V3 R* Y( I3 I+ g  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 M% E& ~8 K/ v/ ?4 g6 u; @
  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.9 |: K9 r) I" T/ n8 e
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& X- K- p  y4 V6 j& k0 c8 a
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., Y6 D) M  U( J3 x* Q1 A

( x$ O/ A2 I" i  {/ x( H问题:
: T* p: L! u( x6 L! CAfter running the model for 10,000 days, what was the average number of loads in each process?  q9 y; W# b. w: ?' N( ]9 j! n! G

" I( c9 b6 C; S! a8 ~( |- J% ^不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving; n: c: T8 V+ i3 `0 S% H
move into Q_wait /*Capacity is infinte*/- V6 Q7 v& a% B" S( W
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/" d  E* o. c) Q0 c* C$ }: B
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send to P_B
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P_B and P_C is similar5 Q/ g$ m. j2 C& Q1 k/ K" L
triangular 30,60,90 min
2 C5 V+ `/ `2 Y% s6 ~' O; Uu 60,30 min
+ }( ^2 A, B/ F' I
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) [+ i. v" {* @in P_C, you need to send to die., b6 g. g1 O  r
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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.' v/ h$ H! t4 [; Y% D2 [' j

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- k' E2 U, f" ]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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