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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,' {% j7 m$ C' {; V
  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.
  V, ~& A4 Z2 G' Z. q  Loads are processed by each operator for the following time:
0 S5 X0 V, C% }4 S, m3 v0 ^  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
' @; p# v5 G7 ^1 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.
1 G! H9 e& l* E7 e  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) ]  Q( i$ X& y, w6 c0 DSend 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.8 B* E8 {1 t% \, i1 L8 F& w! E
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问题:; q  w9 X. h2 ?: J1 ~4 C
After running the model for 10,000 days, what was the average number of loads in each process?
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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
  F/ t) H1 u# [+ Amove into Q_wait /*Capacity is infinte*/% `  \  E) u/ I* J
move into Q_process /*Single capacity*/3 v. n8 s4 h- w; F
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
, R& ?, Q- G! B, H- V- gend
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$ f) ~2 W# k) [6 i" v& UP_B and P_C is similar
2 i. s, F- c* l9 `, Y, jtriangular 30,60,90 min
$ n" h( r) u+ ^9 ^" G  N, p1 cu 60,30 min3 z. ?8 c. E# F% S

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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.( G* f6 C. W+ }' u. n- D
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7 j; A1 d9 q( N: q2 @5 X; vRemember 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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