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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,
" u+ f7 _8 z- h& i) X) d  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.
- c+ B# J3 B  ?- d2 |  Loads are processed by each operator for the following time:
0 x! N. I! i& ~$ E0 y: k% v  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
! v% R1 X3 t2 b* [$ G+ S  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.
0 Y- e9 T3 M7 a3 w+ J2 y4 B  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 z, {: s2 H- q. b1 ~/ {
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.
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3 w6 p( n2 |5 {3 Y1 z3 u2 C3 ^  ?问题:
0 l! B2 U: F: F" O- fAfter running the model for 10,000 days, what was the average number of loads in each process?
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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
8 j( E# E) P  w% A( Q+ I6 a) w. Hmove into Q_wait /*Capacity is infinte*/4 W6 ?1 K) O8 ?) @: C
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
. v6 {) z, K! p6 _% @& \end# q& u+ K5 d  E9 W2 L+ `( `

0 F  t2 o4 A  r% @  \5 gP_B and P_C is similar, b7 M% X1 Q# c( ^' i7 y+ Y; G% h
triangular 30,60,90 min
0 M' P& B# I4 eu 60,30 min
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in P_C, you need to send to die." m  P, s/ ^6 F! N
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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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