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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,
* W9 ?% W1 }8 ]: X- U* A+ Z$ G  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.
6 I) M1 _3 u/ @: e0 _- b% R3 f  Loads are processed by each operator for the following time:
1 y9 [7 c3 S; d* w# A! @% K  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." K/ b8 y' ]2 Z+ \
  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.
( J- L( M0 o* v% _) E  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
0 Q) Y; o  I- T. V5 A& wSend 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.  U- \& V, x6 j) P# ?

' ?+ h( {% T; Q, M- @- o' b问题:
( K0 U, p  F) R2 XAfter running the model for 10,000 days, what was the average number of loads in each process?3 A+ H9 O0 `! G$ o+ {, i, r  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 arriving, q% l2 R" b4 ?6 y
move into Q_wait /*Capacity is infinte*/1 c5 E7 K% G3 n. c
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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6 u* ?3 @3 {" |8 G& wP_B and P_C is similar& a! N+ z+ g4 u$ P! G
triangular 30,60,90 min
9 b, U$ }! ~. Q- j' p5 Pu 60,30 min
7 @& i7 l2 S" S) {5 l* f$ ]1 y9 j; [/ G3 e

/ s; ^$ m- y2 rin P_C, you need to send to die.
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$ M$ a* `" b* Z* F% i; x7 |% h, KThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.6 v3 H8 A- O# N( m% ]" ]
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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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