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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,
1 d9 E2 [- q0 a2 f3 o) n: S  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.2 H- D; i. @& R
  Loads are processed by each operator for the following time:8 d. v0 \; O+ s. H2 X
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
) ~9 E& M' x) |4 @% u& @0 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.
  K# J9 q7 I4 b# p2 t& F  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.2 |4 S9 V, ^, I6 S
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.9 Z6 n5 @+ o- U4 P/ J7 Y
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问题:! L1 Z  F0 Y% q# D. r) \( E
After running the model for 10,000 days, what was the average number of loads in each process?
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, Q. s! e4 [/ x& l不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving# S" R8 T# d0 e
move into Q_wait /*Capacity is infinte*/7 b5 z- U& o4 R+ }- r$ t0 |8 V
move into Q_process /*Single capacity*/( @& U& l1 J7 O

0 `' J/ ?, W2 D# Luse R_A for n 60,10 min /*Resource A*/
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send to P_B/ _! b6 [" h0 i. ?
end& Q% V6 q; V3 M1 o( J
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P_B and P_C is similar
* Y8 D1 ]5 a. k: N( [: jtriangular 30,60,90 min7 w, v1 x, u! n
u 60,30 min
2 Y0 J6 O& E( v) X, w' b5 C9 ?/ A5 b; R1 D7 p# D* M- E# a& h# e

7 K& V7 \2 \4 w6 |/ Rin P_C, you need to send to die.
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) ~/ Y- C- _' WThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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3 s% `" ?4 b4 |! C, ]) fRemember 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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