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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,
- f( K6 j/ O9 y' b% k  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.0 F; W& |- q6 `, r" C; k
  Loads are processed by each operator for the following time:
7 W0 Z7 p' ^2 b. ?' D2 `) T  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." R2 F5 I7 O9 d
  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.
: I: s0 L  r+ m8 a+ Y! k* e' Y) G  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 ^8 r- X2 e  F: \; |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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( n! C( ^5 s  D9 t8 k2 T问题:' [5 k6 b; L" W& {2 c
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  B, P4 G+ K& N4 Y7 _move into Q_wait /*Capacity is infinte*/3 D: G1 T; i- n3 K$ J3 D* W% L" h8 s
move into Q_process /*Single capacity*/
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. j* K0 e; Y. s; _8 u. r* Tuse R_A for n 60,10 min /*Resource A*/
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! U3 X- ?, I. b; P$ v7 T/ }: u- [send to P_B: r8 G1 \0 J- ~' @; z; v
end
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4 H; a( @6 z0 U2 `P_B and P_C is similar
$ [- V" ^' a* }triangular 30,60,90 min
6 ?9 h1 n' X+ q$ q. ?u 60,30 min
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in P_C, you need to send to die.
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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.: H& a, b- L; H8 F- ]

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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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