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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,
" Z6 c, g+ D3 m9 [1 F1 C8 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.
8 D7 R9 p: k: j  Loads are processed by each operator for the following time:
( R7 j2 W) k/ A7 \  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.+ ]: w3 o, U( M+ J
  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.
6 N- B' h+ M: B0 C. ?1 _. e( d  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
7 h6 z& h  F7 _6 g, ^- qSend 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." q8 M6 _5 Q" S* L! v0 w
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问题:1 j( F7 @* H# {0 R
After running the model for 10,000 days, what was the average number of loads in each process?$ u8 Q1 h; l2 s5 s
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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' J: c4 }& u% j; u
move into Q_wait /*Capacity is infinte*/! Q5 y3 W' H, R) Y
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/7 x5 k$ @1 o1 t3 _+ _, |

, T+ }$ h' X$ O- q: dsend to P_B
! f$ i. c! e$ a! Xend
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1 O9 q. _. d9 B/ @P_B and P_C is similar6 O9 f! B' R3 N. W2 i9 |/ W
triangular 30,60,90 min$ ~3 @" ]" [% Q) Y
u 60,30 min0 J: s3 r6 B* [0 x; O& U
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, t  Y5 H2 E& n/ din P_C, you need to send to die.' O( t  ?+ l3 A$ D8 B2 B  z
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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.
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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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