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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,
6 L! y6 h) K2 t+ N  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.
/ n$ {1 }9 _& c5 P+ Y  Loads are processed by each operator for the following time:
7 h6 L& ^" ~; ~+ K8 [7 R  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: N) y, l( C$ g/ Z; I  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.6 j+ _6 I( k% G4 }% V! v
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ Q) Q& p! N: t) y3 Q% ]& E6 r% ~
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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; g' [' |, r+ g. y" |( Y问题:
% C  n4 _' ~$ N+ m: l9 E( WAfter running the model for 10,000 days, what was the average number of loads in each process?: w9 b% U8 i! s7 d0 q9 F
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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
/ @' \3 J$ W$ ]; A4 U! Zmove into Q_wait /*Capacity is infinte*/
* M, m' T* B. Fmove into Q_process /*Single capacity*/
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$ k! k( p: G  e1 e/ Zuse R_A for n 60,10 min /*Resource A*/" z7 _+ U5 \9 ?: ]/ k5 X' T% o6 |+ b

5 H0 [. r6 I5 g6 ssend to P_B
" Y  R# m/ Y! Z( {( g- c7 Y  ^end* l5 D, w( N0 I- f
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P_B and P_C is similar1 A( f1 s. T* ]
triangular 30,60,90 min
8 }6 ^( U. i+ l! s8 ]7 ?u 60,30 min
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3 U& v6 \* }. o" E9 V# a* zin 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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