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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," R0 M6 s0 A3 O+ q! W
  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.% I5 W) N0 i" P% n7 M8 Y- E) m7 s
  Loads are processed by each operator for the following time:
+ t/ b+ y; u, T  @# L: j; l4 t  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
6 X0 q& U8 B' i; c' g4 ]  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.
. w# v. T- q0 t5 o" Q! Q" `  R  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
- x& d# p1 ~+ M- ^( r8 [2 ]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." D, ]4 {0 v% B) S

: J3 m) U# {+ w: [问题:7 d0 D: }1 G( h9 k- G+ l4 @
After running the model for 10,000 days, what was the average number of loads in each process?9 g( `) l' f# t1 t( X- \, q
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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
0 i+ L, ?# F! P! _" c8 k+ bmove into Q_wait /*Capacity is infinte*/
# ^7 X) h/ F$ M" y" |5 a9 K. Nmove into Q_process /*Single capacity*/1 C- b0 v4 a/ t9 F

) U: P  l9 g+ y- `  Iuse R_A for n 60,10 min /*Resource A*/+ @2 s  e$ E# y( |/ w# o

& V+ k3 p9 m" D7 e. _; B  Usend to P_B8 r: n- K1 x5 N' P3 }# T
end
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P_B and P_C is similar1 v% c% J2 L, Y3 Y
triangular 30,60,90 min
' k8 C# U# {  j+ Y; A& q% ou 60,30 min3 B1 x7 q8 U5 x5 w; l8 H
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in P_C, you need to send to die.% K$ k- f: W( \  u! o3 f
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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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