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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,
+ n  w% v# N  b! p0 X: x  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.) H3 q0 }: o3 q0 ^* ^0 H
  Loads are processed by each operator for the following time:
/ d2 s2 B0 }+ g. V% e5 ?/ S  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 E: z9 \& a4 u$ \
  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.  f9 n7 D4 h; ?: X% k; g" c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 M1 H! ?. a2 HSend 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.- c! _% E3 K8 j& r# p$ t, I
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问题:: l$ ~4 _% F7 f
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
+ X% S- z2 G# Z) \move into Q_wait /*Capacity is infinte*/
: \; ?# K1 c6 N; N* k% v" T& U+ u3 Omove into Q_process /*Single capacity*/
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) H7 R; ~' ~- J- g8 q7 C' \$ wuse R_A for n 60,10 min /*Resource A*/) p; r9 P4 K& g/ u& T% Y' J$ B) {+ l
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send to P_B3 Y+ ~) ^% j- \3 x7 z4 L4 H
end
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P_B and P_C is similar$ ]. E! c4 d8 I
triangular 30,60,90 min: c- q# R% m* D) |
u 60,30 min) @9 c# Y& D" _4 F4 y

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' l: E# o  r# F0 p0 t4 {in P_C, you need to send to die.
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& f8 Z$ W; }. B6 NThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.  d: Z( S: |# S9 ^3 V6 u( A
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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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