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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,
1 v$ H  [3 p6 F! b" b' w  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.
# S; J0 Q* R3 }, W$ M. D8 A1 D( I  Loads are processed by each operator for the following time:" k& n0 V0 F6 q& q- ~8 R
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
4 G1 {2 z/ m# s- w& 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.5 p# F, a% K: X* Z
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* k0 K2 q$ y* x' p1 R& 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.0 _  p5 |4 G# v  h
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问题:% L3 d  l7 K$ Q- Z- J; N2 X
After running the model for 10,000 days, what was the average number of loads in each process?
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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/ Y( ?" o/ w; w: N
move into Q_wait /*Capacity is infinte*/
; P6 P2 ^# ~8 n1 M& n) Xmove into Q_process /*Single capacity*/$ l4 V* S( }8 Y! A3 H

9 \; ?7 n2 V9 ^8 Muse R_A for n 60,10 min /*Resource A*/6 g9 m  E( p( l% g; r

) `2 v  b& ~; \+ Usend to P_B
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6 B, y6 T& ~. U5 FP_B and P_C is similar
% n3 V" B6 M; y; g5 T! ?, ytriangular 30,60,90 min. P" a9 u9 F. G3 w, [) L+ z
u 60,30 min1 n- P8 n" M  e0 h& [

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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.
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+ {- |/ y  k7 O% ]& hRemember 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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