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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,& L( R6 w( b5 Q5 ~0 s* |8 f% j. g
  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./ V1 w  t" {, v: F9 C. r
  Loads are processed by each operator for the following time:9 l& q6 r+ }% s$ n6 K
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ R2 Z: L( }5 i+ e( w8 [! n$ D
  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.+ \; y% g% `8 s8 G5 E0 x
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( G1 a4 U& E% h" h% e& T- OSend 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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After running the model for 10,000 days, what was the average number of loads in each process?
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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+ o3 H4 M. B! B  X$ W
move into Q_wait /*Capacity is infinte*/
$ M9 N+ S/ Q! M# s4 Kmove into Q_process /*Single capacity*/, v. z, y3 a0 W0 i& P

: u' N4 m( h5 `4 h  _* f: ~+ ?" quse R_A for n 60,10 min /*Resource A*/
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" u$ l2 V! m( v# o/ R' Dsend to P_B
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P_B and P_C is similar, I) j5 ~7 u7 A! |
triangular 30,60,90 min
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in 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.. L; }& U: F9 R6 t3 T- Y1 y

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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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