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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," \- J- X8 G" Y$ I! Q; d/ {" M7 n
  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.
' L; {9 a! W: {: Y$ L  Loads are processed by each operator for the following time:
8 W0 C5 T5 s; @9 p  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.: A5 a1 V6 T6 W9 T7 \* R
  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.
+ b. J$ K. v4 r8 V$ X# P) v  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.) ^1 i; R0 s$ F+ X
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.$ D/ v: N6 z1 J& n* [
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问题:: `6 y( V% G! H, \+ ]# Y  t
After running the model for 10,000 days, what was the average number of loads in each process?3 i+ A' T1 Z2 u  b1 A

9 y" b. a7 @$ H, R$ O; G不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving( I7 v7 c7 ]  f$ Z' Q# x* Z
move into Q_wait /*Capacity is infinte*/+ N4 ~- j0 l' o# K% n
move into Q_process /*Single capacity*/
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' k2 o/ E; p+ q5 C+ Zuse R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar) N; ~6 ~. }9 a0 e
triangular 30,60,90 min
" G6 u- ^: ~2 l% ?9 c: \/ a& D# qu 60,30 min
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9 I) p+ n, I, V1 jin P_C, you need to send to die.
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* a4 ~  k2 X. K$ ]- uThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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; r0 v4 r1 i/ O* G2 JRemember 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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