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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,( d- g: b% r$ b* M, `5 ]
  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.
! a# @: L6 q: L( d% n% }' t3 t  Loads are processed by each operator for the following time:
* T4 y; T5 I/ ]/ N* B5 ~  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
! K( E% b  b9 n" E. A  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.
$ X- q( X" v, L) i0 N" e/ J; V  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 u( A2 t7 \3 s' t
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.3 [) W, ^  H5 u. q
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问题:# H& O1 ?; t8 O3 z( _
After running the model for 10,000 days, what was the average number of loads in each process?% P/ W7 \0 W9 _7 M; k6 W
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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# P4 Q5 V* L7 M; Y- u  k
move into Q_wait /*Capacity is infinte*/: o" |) |5 `, v+ X/ x
move into Q_process /*Single capacity*/
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  j4 x" X4 t/ L' B% ^: c0 u' ]use R_A for n 60,10 min /*Resource A*/
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' Q$ D/ O1 K, o2 `send to P_B
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' `$ v9 Z( i! I1 S  wP_B and P_C is similar: F- m5 U2 o- e
triangular 30,60,90 min. u" q; V  ~4 @+ |  }
u 60,30 min
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% }- y. m: G% A1 K' Lin 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.3 Y- Y, g3 m& O0 y- P) e: c

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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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