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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,5 i2 Q% L6 f9 C9 \: F
  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.
# q, j7 w; S, T& E( q  Loads are processed by each operator for the following time:4 W0 K; A2 {0 O
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
# |8 c# j0 ]9 B; B& _  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.
! A. n3 a* }; J( ]/ Y7 _! }+ ?  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; H. Z& T2 E9 O$ T$ l$ USend 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.1 y8 o( l: C" T% M6 i" v. ~

6 J: S" N, F% }7 m问题:
+ X" h+ h4 Y/ }+ z( _. o# `. b" H2 |After 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
4 _: Y0 l7 u5 B9 n8 r; @) E/ P; jmove into Q_wait /*Capacity is infinte*/; }% m/ v9 |0 r# y! C, j3 z2 a
move into Q_process /*Single capacity*/0 M8 f4 |% c+ s* g$ a. ~7 E

# H+ Y, s- S( g$ ]* I1 k% vuse R_A for n 60,10 min /*Resource A*/
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send to P_B
6 g1 o5 B5 s" |& uend& M: B9 O8 e& Z& ?6 ^. K& w
7 o! }- n2 K# C; L8 ]
P_B and P_C is similar1 Z: Y" f0 h* F8 Z# ]9 k3 @
triangular 30,60,90 min/ {8 {* b7 M7 s3 |
u 60,30 min
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in P_C, you need to send to die.
+ s9 E2 k9 M3 S# S2 S
- q) P( o; x# jThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.) d+ `" l2 k* s4 T
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0 P# p2 j7 Y- F6 m- bRemember 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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