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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,
% C( ?, M/ W& I( M  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.
* h* F) _' p* _  Loads are processed by each operator for the following time:
/ x, B5 R7 \3 F% C8 W! [  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.; ?( K: T' P2 x1 {
  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./ g& @/ C+ h& s7 A6 F
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
" ]) ^1 o& ^4 N# mSend 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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& d/ y% z( R/ T3 @3 F8 F& J1 s问题:
% s* ?' t) J* o* ^After running the model for 10,000 days, what was the average number of loads in each process?9 M' p: B) C2 J5 F% Z

  X' P3 b- k* C1 h8 X9 B6 S不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving% b0 |! ?& K& a. ^
move into Q_wait /*Capacity is infinte*/- y$ T: _" s; {4 J: f, x
move into Q_process /*Single capacity*/4 v/ R4 {6 C0 q# f6 W2 I% n7 \  q/ Y
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use R_A for n 60,10 min /*Resource A*/9 a5 M3 w1 _! p' ?" `
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send to P_B* T' v! c! L3 ?& M$ V# P
end) X! a4 W9 g( v

2 n/ Q& m0 F  x- g+ r" rP_B and P_C is similar% d. Z3 }$ \7 V% F
triangular 30,60,90 min9 u# h+ b; u& J) ~* ^9 @
u 60,30 min1 H8 e" h5 o- r, |. O* I- i5 K. @

) }1 X( `3 |, i
- {  |- _7 N: @' C  Z& Jin P_C, you need to send to die.
5 y; x# N4 U( K; D4 p
8 n% |, p0 M! G% S5 JThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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- j8 Y) G; X* B7 mRemember 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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