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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,
  A" g, ^" b- S; J! A7 A) x  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.+ E# ]0 C; E3 \7 y& e; j$ f
  Loads are processed by each operator for the following time:
; ?/ r& C) x6 B6 o  i, E  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 O# d" r' a% J8 v; C
  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# B, Y7 T- N  Z- Z) i3 U2 ]
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- x6 z2 n6 |$ P/ P* o  @2 Q
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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% K% w3 S, \( d( d6 G/ k7 D/ S( q4 |问题:
- f6 u* J: f# oAfter 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
  h' Y# J( h. y+ j7 Bmove into Q_wait /*Capacity is infinte*/. r% e+ v! y6 N6 Z6 Z
move into Q_process /*Single capacity*/+ k$ l2 v0 `8 {

8 A/ P' `2 @4 b& j& S( l+ k4 y/ yuse R_A for n 60,10 min /*Resource A*/
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3 P, w. J# L" z8 M  t' A: msend to P_B
( s8 I  q2 b+ M' Y( C) s* D; @1 y% mend
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# u$ u! j. |$ ZP_B and P_C is similar
* J" M* X' ]9 }% K. Htriangular 30,60,90 min
. L1 l0 E+ c+ X( R$ L& T# p. Q8 Uu 60,30 min
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2 K8 u7 }" b. P0 g% [6 Uin P_C, you need to send to die.
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& m0 d' |- X) o$ a" `! eThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.- b6 y" H) N  L2 ?/ u" h& B* h0 ^* b

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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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