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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,% F4 l( a3 M& y, D* Y+ J
  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.
2 x7 M" Q! @9 a+ h; [  Loads are processed by each operator for the following time:
& }4 y9 r: \: O  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
+ k; u+ W; U/ I( X# V  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.
& G, \" w1 B' P7 j5 K3 W9 S! q% c  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
2 c; G# _4 D, L( ]6 p+ a$ @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.2 W# i( o. {" _% E, u7 y1 k1 a3 U
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问题:8 C; t1 z+ E& f6 r0 ?" B  M
After running the model for 10,000 days, what was the average number of loads in each process?+ A1 I: t! |- Y1 O( X

5 G5 u. j0 T" t! {8 ]3 e) g0 x2 s不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving( {$ @, l* c( C! f
move into Q_wait /*Capacity is infinte*/
6 N+ ?$ d! ?6 u) t' |" E1 R7 E+ X; mmove into Q_process /*Single capacity*/* W, n' L% J: t% x
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use R_A for n 60,10 min /*Resource A*/1 M/ O- m6 A* i( G$ [
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send to P_B
( i& k: H0 a* B; B- `$ c' }end
( I1 c3 v7 m) d
% s+ M( u: p/ i% c, S/ _P_B and P_C is similar
7 r* U! y2 g$ c, j) Mtriangular 30,60,90 min& m& e6 F8 `% x9 y2 T& D
u 60,30 min$ z# I# P5 Z6 m" h) A8 ?
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in P_C, you need to send to die.
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) `3 J3 h. a4 ^2 x! A7 P% 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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; d. K1 ~+ i  Z5 E  ?, URemember 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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