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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,
6 o/ K* g# ]: I( l( k* J  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.+ w$ s9 P1 X$ @* J" n& \
  Loads are processed by each operator for the following time:
+ ?5 F5 h1 f4 j5 D4 E  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 U. B4 |7 C7 w; {1 i; q
  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.
9 i) }4 y! l) J2 J0 d& o2 A4 _  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." W8 }$ a' D, d2 ]
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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% X' a* B' w3 ?5 o7 @问题:
  d/ Z" F: \/ D* O' H! T/ q! v+ _After running the model for 10,000 days, what was the average number of loads in each process?
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! [3 _$ n; I3 s( `不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving( S& E% V8 w! ]4 ^- E8 [
move into Q_wait /*Capacity is infinte*/
, h, T$ I6 S2 }9 tmove into Q_process /*Single capacity*/. F; U- R4 n+ @+ Y& A" A, k  j
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use R_A for n 60,10 min /*Resource A*/
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# m7 A, _; x" Jsend to P_B
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P_B and P_C is similar* S4 H% A& T% s
triangular 30,60,90 min) q2 U4 d# `$ }  e' ~4 w$ }  ~& L
u 60,30 min
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. B( i: F/ d* [0 |8 vin 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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, S# i7 J1 O6 {* k8 bRemember 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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