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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,: Z' \6 V5 J/ |6 n' K0 p+ A; C
  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.
) h' G% \! d( g' G  Loads are processed by each operator for the following time:
) W) U; y6 Z" _+ {" ?: s  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) _' w0 s8 t. V2 R
  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.6 J  h) t% Q9 @' m& Z
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! I& K, f, V4 @2 w. s/ E% ]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./ V1 d1 e0 O; D8 G1 {4 ~
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问题:
: Q. a2 F, @1 }3 Q  @After running the model for 10,000 days, what was the average number of loads in each process?2 H) [3 {/ t. L0 C0 G% I
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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' \4 N4 Z( @; k% C+ O
move into Q_wait /*Capacity is infinte*/
( F$ z7 o  d' m( Vmove into Q_process /*Single capacity*/
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: ^# A2 r& `# X. M; _' A. Ause R_A for n 60,10 min /*Resource A*/7 Y+ c4 T7 g0 r2 {8 h" d
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send to P_B
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P_B and P_C is similar
0 R* W9 K1 N2 S$ a1 }" ~7 ptriangular 30,60,90 min/ B+ }- J8 p3 M9 c3 a
u 60,30 min
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+ b7 U% m7 y+ m) k6 Nin P_C, you need to send to die.
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8 [& }) t6 O0 H( DThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.( I( a! q% ^: u; r/ b. H( E9 _

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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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