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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,
. T: ]  V2 o; C6 d3 a* u8 p  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./ E3 W1 H  v0 O9 l/ k
  Loads are processed by each operator for the following time:3 s6 U6 O; R' ~" R
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) b6 \5 \# q1 V' p
  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.
; o9 e; q/ y. ?1 N  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
, F8 _. ]; t- T% s) ^+ tSend 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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7 z3 T3 C% x; L6 S/ Y1 j6 \$ @: u9 S问题:! }; k& D* V! {$ `" x3 x% w/ D7 l
After running the model for 10,000 days, what was the average number of loads in each process?8 e5 }" R/ j0 x# i$ |. F( Q! q' f

3 u+ [# V- q1 x+ q* e& F不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving: S5 u- ]; C* L7 j; |- R
move into Q_wait /*Capacity is infinte*/+ l* V! ?1 K- `' I8 U- E
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/8 j5 e) c  j1 S1 o
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send to P_B
) r; t: o4 U: a7 t& L( }6 M# K6 e2 nend
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P_B and P_C is similar4 m: U2 n. H3 u! C4 c) {
triangular 30,60,90 min6 P! `5 `8 c) B8 O. {7 F
u 60,30 min7 S, p9 g$ N5 P/ i; w

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* t; _3 G. `9 M" z1 Lin 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.7 @: {" u1 U7 c, @3 p
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' i% b# X+ S1 }1 B$ c9 X2 M; [2 h! lRemember 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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