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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+ g8 A# n" V  |$ A- d
  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.
- C1 U6 f( }0 e7 i" o9 t/ I1 [  Loads are processed by each operator for the following time:
7 s* p+ |7 U5 B! l) d$ n  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% O+ \8 ^4 t+ W  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.
2 C  ^0 g1 o  J4 |9 V- h  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( b  a5 n! S4 E3 K+ f0 aSend 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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( ?, v( `+ l* S) Q- l; x问题:; ^/ b1 I* `( t/ \% ]4 X* D
After running the model for 10,000 days, what was the average number of loads in each process?$ s9 k- ^! L; O$ J& g$ k6 f8 R# c
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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
8 x( q& q' g2 v1 n2 qmove into Q_wait /*Capacity is infinte*/
8 t' Z; ?) B" G$ Jmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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; X% a: L+ e' |+ ^, c& o/ a; |send to P_B/ a% g3 Y1 V; s$ B
end
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, R! H" R9 S% x& y8 @! N8 tP_B and P_C is similar# s! m) `5 T* ?& [# X; W; \
triangular 30,60,90 min: V7 H4 Y- l" C; C& q
u 60,30 min- I4 o" _7 w3 Y& V

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in P_C, you need to send to die." f% p7 g1 a1 n* B
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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.8 {' R+ b( d7 ?8 n8 w

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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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