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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,
, a) E! X- H" T  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.
* Z3 q! O: W. B/ p' c( J4 z  Loads are processed by each operator for the following time:
3 s5 J- N6 z7 k  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.8 ]# |( R  b" B
  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.3 t2 T8 K0 c6 N" u" P3 c: S
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 P- T; K: I! C) r: g# I
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.* P7 @3 @" M* r4 b- ?( K

" M+ `6 `7 g2 ^) q) k- L! w7 M问题:0 M) H7 e: K# ]. d
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, G) s  A/ E2 O- o
move into Q_wait /*Capacity is infinte*/
& ^1 q! }( H# Z6 nmove into Q_process /*Single capacity*/& f0 P5 z7 C2 f% H, r" ]
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use R_A for n 60,10 min /*Resource A*/; ]3 C+ ?" S9 b3 G* ~
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send to P_B# M* l/ x  S- b+ V
end7 n' j: b1 ~: L9 {; G+ m  z) ^

8 ~4 P) \1 B7 U8 R) N% R3 b0 ZP_B and P_C is similar
3 e# E! \6 R, B" I& _8 p4 g: Ltriangular 30,60,90 min
1 l/ z% Z% p8 eu 60,30 min
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in P_C, you need to send to die.7 O; J# R; {; V) p* P2 p) o
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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.
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% ?3 o& z( P0 f" S5 uRemember 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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