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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,
2 S& n: \. c; N5 t4 E: 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.
- w# J3 i% }$ T- S, y7 v( V  Loads are processed by each operator for the following time:) s  G& b; e5 t/ w9 g
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
) @+ V6 S, K0 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.( E4 f5 [% c! F* n- [
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.1 n. I1 L$ p& `8 U& E- T
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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问题:0 [' n5 ?& X& N; k5 h
After running the model for 10,000 days, what was the average number of loads in each process?! k8 M# j2 c; a6 G

3 O6 H5 W0 C; \& t/ G; R不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
4 ~) m" d  F# |" Cmove into Q_wait /*Capacity is infinte*/0 s5 `, ?  u# m
move into Q_process /*Single capacity*/
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! O" q1 F% w: g! F0 suse R_A for n 60,10 min /*Resource A*/
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send to P_B! I3 z9 {- _: x. F
end' \5 }& E  M' l! m
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P_B and P_C is similar- y- ?4 [8 o. z6 i! |# q" }$ D
triangular 30,60,90 min
9 H  N: ?# I  n" Cu 60,30 min8 I6 q# E  e% ^% r, l0 u

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in P_C, you need to send to die.
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- F+ s2 T+ {* r' [2 m; x8 XThen 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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