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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,
, x+ l" @9 u; E. t( G8 _' 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.
  y$ }$ W) v2 U/ P+ Z2 |5 ~1 {  Loads are processed by each operator for the following time:, w! G6 E7 A0 K' s. G5 R$ r
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
8 J, f- \0 L& m  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.# g7 k" o) `4 V, p  _) ^
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  c) ?1 G, H6 h6 u* FSend 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.: ]! r, k* w0 \' Q2 l

; a' Q7 Y5 b) q* Z6 S* i问题:
# I( }" O  q; d8 _) M  X( t$ ^After running the model for 10,000 days, what was the average number of loads in each process?
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) _# U. Z" j/ `4 A6 ^$ ]" |( U' q不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving7 h* S" z, @  F; P2 T
move into Q_wait /*Capacity is infinte*/. V; ?$ E9 @! e2 X7 y& p" j
move into Q_process /*Single capacity*/
( c3 }- G5 m$ C" ]  e* b
( U9 E0 h" c# j# h3 n1 luse R_A for n 60,10 min /*Resource A*/+ M0 G3 x  k* B9 B" U! r
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send to P_B3 A2 S0 y& h5 g; K& N
end8 f. L1 }! I' z; S- e1 U

+ ]9 j0 J) c) rP_B and P_C is similar
, p5 C9 Q& h* e6 W: v" k8 Gtriangular 30,60,90 min
* M  B+ i  h- D; e& Z. xu 60,30 min8 V' V- W4 h- _. C
% y: Z  c6 Z; x: n3 }/ g4 B

* M* F3 X" t$ t# p. ein P_C, you need to send to die.
; G4 y$ K1 M0 k3 ?' H9 r; K  I. D, p# R. q8 \
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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7 l1 C2 s; S* M+ J- e4 @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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