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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,- V! u5 L( g" V( F' {
  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.
( M! |. @8 k& ?+ o( S$ w! x  Loads are processed by each operator for the following time:2 h9 e4 f$ j. a& O9 y
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 G8 i8 K4 n& V2 n' H  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.# m' p' @0 p0 v/ x/ |$ O$ p% P
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% H3 c7 n, i: r& q, K5 N
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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After running the model for 10,000 days, what was the average number of loads in each process?- j- w8 H9 [% l3 q8 {
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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 arriving2 J9 f+ X: H+ m+ z( T
move into Q_wait /*Capacity is infinte*/7 f- s8 x, R  ]2 i3 j, E
move into Q_process /*Single capacity*/
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0 W4 l/ H* l5 f$ A2 Fuse R_A for n 60,10 min /*Resource A*/
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2 I, |% g! S7 z, ^! g( C' g1 u3 ysend to P_B
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P_B and P_C is similar
  k8 q; [4 m* B! R8 k2 y0 h* Utriangular 30,60,90 min. t) K0 ~! h- M) O2 c. \
u 60,30 min
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in 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.! P4 a/ v0 v! G' j
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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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