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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,* P, {: H' Y4 e$ M; J* H1 H4 ]: z4 Y( \
  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.: u; }' b# q6 A3 n' {1 ~8 s$ Q
  Loads are processed by each operator for the following time:
9 s6 A* K3 R: b( ^: f  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins./ E. n+ Q# b0 P" h
  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.2 }# p: X& o* G$ A7 O+ i5 X8 u
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 O' O; X$ \3 J
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.3 X1 G3 ?9 i# q8 N/ k8 p5 {/ z

9 f/ ~: F$ |" f! ~" `问题:! m8 m9 B4 L9 D5 }4 {
After running the model for 10,000 days, what was the average number of loads in each process?9 q+ ]; U7 Q# \

. [  H6 f1 K3 x2 H不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
2 Y6 I3 Z- B, [# {move into Q_wait /*Capacity is infinte*/
( i3 f$ b' _9 |8 D: mmove into Q_process /*Single capacity*/7 z7 M! A" A, ~+ k( T

( I+ f% V* g9 ~: g  huse R_A for n 60,10 min /*Resource A*/$ d* W0 j: A+ Y% @( E: {
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send to P_B
  @. w! W# }3 q+ s' w: I! F) l) }end
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4 i$ t9 g, ~( I6 c" @5 DP_B and P_C is similar
% z# X4 g0 Y0 y. wtriangular 30,60,90 min
( A" w1 X/ F, B- x2 [$ B! iu 60,30 min
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, j, J1 o4 u& `- y, `  O0 N0 pin P_C, you need to send to die.
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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.& ]" |- ?) s, @
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: S& R9 ?4 {' _# xRemember 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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