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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,
5 u; s) `9 y; }/ Y) K" U4 S  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.
" U2 e# f0 m- O9 |" _5 @  Loads are processed by each operator for the following time:
& \  |1 ?5 ?+ j+ I$ w! C  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% S4 p& D! s, f
  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.) N: w) r4 O9 \" f, O4 O7 _
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. a4 E) B& ~7 w% Y6 v, v7 S* J
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.
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' t5 ?8 s3 R; s, S' ^$ F问题:6 Q( f# n: J3 D0 @8 e4 Z9 p0 i/ |- d
After running the model for 10,000 days, what was the average number of loads in each process?" H; b' S, w$ Z

8 x- ]# s& _8 S不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
5 j: K. m5 t. amove into Q_wait /*Capacity is infinte*/( I! H' D4 s- w/ u$ C
move into Q_process /*Single capacity*/4 V# D6 ?8 [1 i: k" T: y& y

8 [, S& j. _# Q. Guse R_A for n 60,10 min /*Resource A*/
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send to P_B
. p$ W. `8 }3 ^4 S" B  Rend: R+ |, ~: t/ H3 {- K+ R8 G' \9 k

3 x1 N! A7 q1 k. p9 kP_B and P_C is similar$ C" y5 F" A( E. L
triangular 30,60,90 min' H  d8 U& }( |5 H" I: @8 S, O  x( P
u 60,30 min
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! F$ I1 ?; @& j+ j& _0 N8 h2 _: U$ @/ ]+ m! Ein 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.3 D, w3 K8 ]" r- E" b) M
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! z) A- o- A0 u8 qRemember 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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