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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,* [/ w$ u% m% E6 A
  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.' F/ E1 s: l" C* k; }: b% h
  Loads are processed by each operator for the following time:
/ r5 J" ~7 g. C7 @3 ?2 J+ E  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.: b4 `. z1 Y7 {) V, q! s
  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.; X3 q# \' D' H$ a
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." G8 Y/ {3 C) Z% h
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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$ ]7 }8 G4 |9 P8 D- s0 Q/ l0 W问题:& p1 t6 @5 D. ^- J* [# R
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
( r! U5 G# Q6 V$ J/ imove into Q_wait /*Capacity is infinte*/
4 O2 H, O% o% \move into Q_process /*Single capacity*/! M4 R9 G+ J: N$ U

  l9 x2 ]( l- ause R_A for n 60,10 min /*Resource A*/! U% V7 |# r& K

+ W. C) E# j6 X2 K( O' a$ |. }# f; Hsend to P_B
% G, P/ b0 g: L& ~% aend2 e+ V7 W5 x3 ^7 [% u

* N1 j9 I. P# X) bP_B and P_C is similar2 K. F8 r( b+ }( D
triangular 30,60,90 min
; ?' B) [  D# e& B5 vu 60,30 min
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in P_C, you need to send to die.9 A7 N! J& C8 a" k( u

0 H+ F2 x7 d! l, ^8 OThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: H' o  r' w5 n

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4 D5 i. S9 ~+ k$ \* WRemember 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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