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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 N1 ^7 ?: a& A9 R
  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.
3 U+ k& _! k% q7 Y+ b4 {4 h: v/ @4 i  Loads are processed by each operator for the following time:$ X0 Z& Q& j8 D( H7 z4 D/ U
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, \# Z! }9 ~0 A1 `& q/ n! G9 v  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.
( p! l1 M+ {, i% x2 g4 _  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.1 P' }$ v' O9 Z3 O! Z
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." P% l$ E5 o- e. ~

# X; s- ]1 h- t" P, P! U问题:
1 w- [. Z$ @* h, V0 ^1 PAfter 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
: E2 W" z1 `) ?( `" o5 cmove into Q_wait /*Capacity is infinte*/
! E$ I$ z5 o5 H0 H1 C9 dmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/+ X$ f/ E3 f  r: a: i- p
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send to P_B
# k7 a* ]' y! }3 {$ P+ N8 wend$ \, s5 u* k( U
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P_B and P_C is similar
+ x5 e! H. K: |3 ?/ v) y( Y* ?: E& N: Jtriangular 30,60,90 min
# W$ z# _9 A% M6 H! H% w& Uu 60,30 min
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5 k  N4 _7 r* S- j" o2 ?& Win P_C, you need to send to die.3 i) z3 {0 i9 D% c) G: L& o
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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., \5 g' V2 X3 k4 c( q

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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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