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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,
2 b" p: y- \2 C6 N4 k' D: c' N  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." T" o" e4 j4 h* I+ a- c
  Loads are processed by each operator for the following time:) [! g7 u$ T. R* Y+ U  [* ?. q
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 O* B$ h" Z: O- K& o7 O' U
  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.
2 |$ F+ Y: _/ ^5 n. f" B  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
$ x8 W- p: g* zSend 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." a3 O; K) f3 n+ `" s- b0 u" r5 F/ G
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问题:. U0 _: F) [4 f3 ^! R3 k- ~
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+ E2 z" X* O9 R* j$ Q, ?
move into Q_wait /*Capacity is infinte*/
5 b, E0 o- ?; h7 qmove into Q_process /*Single capacity*/
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  ~, U; X  k: C  kuse R_A for n 60,10 min /*Resource A*/
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send to P_B
' j  x" G. P1 w7 Rend
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P_B and P_C is similar
3 _- v1 i: E  J- D, P1 S! Btriangular 30,60,90 min# ~" g2 R" E! q2 E3 i4 {
u 60,30 min
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. i7 s, _) e7 i2 S: ]& x8 zin P_C, you need to send to die.0 @% l+ h8 W- L! D

: t% w" ]' g2 mThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.* U: P; B2 Y" G( q  f" }- F
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( \5 \& W# I" M$ m/ I  L% |: eRemember 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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