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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,
; T5 Q* o: T" b5 V4 M0 T* _  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.
3 ]; W4 x  k/ S& _  Loads are processed by each operator for the following time:4 [2 ^% p3 O& @- `# X
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
7 e" p  k1 N1 J" @: x6 _  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.0 K  S6 P( ^2 h
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 F0 b6 Z4 q. Y  {
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.  H) _- V! d. c/ W: d
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问题:
2 p$ e, t5 P1 W$ B1 k; d" a% GAfter running the model for 10,000 days, what was the average number of loads in each process?3 I8 C7 P6 X4 K2 R6 U$ f" Q
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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 arriving3 }/ o' B, o3 j. p! s( l* M
move into Q_wait /*Capacity is infinte*/" {4 S' i2 P% v: \, V0 u
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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" W: X" f, r! X. Bsend to P_B( }2 V* b8 Q3 E4 c( O
end
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P_B and P_C is similar
; G+ c( h3 Y. P5 D  p6 Ctriangular 30,60,90 min& ^' h6 _) ?4 |) W' a; w2 |
u 60,30 min. d3 t6 M1 O1 l0 }0 Y! H
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in P_C, you need to send to die.. {" T6 u. }* N9 ]
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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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! F+ o  H& z7 i) Y! y! \* RRemember 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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