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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,
* N' B; `+ A0 r! v& `  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.3 r" w  c2 `. D: j/ q, F0 l% ?
  Loads are processed by each operator for the following time:
: A- ~1 Q4 x: s+ G! C  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
' V1 K' U& r, `5 ]  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.
0 g) Q- r$ b2 a! f/ K$ g: Y- U, J  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 R1 C, D0 L9 r4 [& `
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.8 b  h$ j" s9 x" K

6 Z- ?" h. q* `问题:5 q8 }2 x2 k7 D: @( p3 z6 D
After running the model for 10,000 days, what was the average number of loads in each process?& U4 O& b* B6 z) C, |

% N) h# X% X- U9 j不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  V" p$ k! A: N& F& M7 u( Y- xmove into Q_wait /*Capacity is infinte*/
: Q3 k" j( K6 h$ x8 Q' I  Gmove into Q_process /*Single capacity*/
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0 f, {! K& B" D* ]use R_A for n 60,10 min /*Resource A*/' e: v! q! ?. n! d# @3 x- h" m1 r5 l9 ^! Z

0 G+ X3 S) X: i, Xsend to P_B
3 W; b3 e7 t0 G- _. Zend
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P_B and P_C is similar
5 p& z3 g. Z+ G- |; ^* i& ~9 M. ^triangular 30,60,90 min
& s, I9 }6 ~; }8 e5 D' @$ Q* A8 ]" K' Lu 60,30 min0 ]8 B: {8 e4 X- a6 V
9 e/ Y3 i; M) X9 V, J1 J6 ]# ^0 N

0 \- w8 ]9 y2 U/ }4 e- bin 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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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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