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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,
, ~& z  x9 H, I' `. D5 w) ]  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.
/ b4 G4 e7 I8 l  Loads are processed by each operator for the following time:) \% m3 [& V2 _
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
8 X4 K- A' P- Y- 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.& a0 C+ D- S6 z2 ?: s
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 \+ @# U; U" V; Q5 Y
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.
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问题:! j) C1 V# [9 s9 @* C. _  {) o
After running the model for 10,000 days, what was the average number of loads in each process?2 A8 x8 B, `  G" @% l
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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
) E) ~) Z" S  x6 ?move into Q_wait /*Capacity is infinte*/
& D. i. X5 _, H5 t; Z# }move into Q_process /*Single capacity*/
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* N$ Y0 @+ @3 z( |+ wuse R_A for n 60,10 min /*Resource A*/1 l3 ?: W% K) h4 y, O
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send to P_B
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P_B and P_C is similar
6 U; t) T& V0 W6 U1 R9 Rtriangular 30,60,90 min0 `$ R+ A9 Q+ c: V5 `! k8 `
u 60,30 min
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9 `: N: |) Y/ x' [2 M/ Jin 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.
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0 e( D2 _, r' \. v6 o* S1 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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