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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,
! W: b! Q0 H# R  Q$ q% ]  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.+ v, x3 [" F$ d1 ]' z6 O6 }
  Loads are processed by each operator for the following time:
" N; l% p% l; E, o$ |: C  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 W  c. F; \% A* @! n  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.& u' O1 n7 ?, {* m* w
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 |" y5 j; A; T% A( _
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.# W% y- G( s; e3 X" L8 t
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问题:8 T9 I) w9 }9 w+ X4 o' s
After running the model for 10,000 days, what was the average number of loads in each process?/ h/ S% W. @7 T+ Q3 U8 b( M+ s
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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
# @' h( N) F6 \6 t" q" z, Imove into Q_wait /*Capacity is infinte*/) ]6 h5 H0 F; ]) [8 ^/ |6 p' ]
move into Q_process /*Single capacity*/( o, I7 B: B2 y, ^

0 N  J: b5 y. _% X# o& F8 Vuse R_A for n 60,10 min /*Resource A*/
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0 c# o- c( T$ y2 M! K$ Ysend to P_B
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P_B and P_C is similar8 H, L5 ^3 C/ v# V
triangular 30,60,90 min9 v8 x/ G: C  R8 o( c3 n; M# L* a' T
u 60,30 min1 U% L  G* H& @/ V9 d8 ]9 i! h0 j

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: i8 X' m2 |) I/ k" s6 T" g* m2 sin P_C, you need to send to die.
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1 k$ ~8 e9 l" O# DThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.  [( W2 w: r' I

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Remember 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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