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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,) Q  x0 ]' e: g: v
  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.
0 ]0 R# \3 a+ _  Loads are processed by each operator for the following time:  u" u0 t9 c+ w) W3 B2 S0 [) P
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
! S- `1 T4 j$ \/ s8 T  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.  ?. D* b5 N( r  e4 ~$ d" e. W
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.$ n5 U! M8 e" j/ {! M/ M: o
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.) A4 Z  h- F7 I; w0 K8 k

# W& e* E) E" u* F问题:" L# A5 T; A& a; |* W- v1 h/ f
After running the model for 10,000 days, what was the average number of loads in each process?& |4 I8 r8 W# q: \2 @8 ~
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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
$ Y  M# y9 ~9 L2 K& o+ h4 @move into Q_wait /*Capacity is infinte*/
9 P7 S" y4 i8 P2 ~# smove into Q_process /*Single capacity*/: Y, w# R: V( d" M
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use R_A for n 60,10 min /*Resource A*/5 B- S1 s' G, Z" |1 j/ f5 d
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send to P_B: d& [' D) Y6 a: T0 h7 N+ }2 F' E
end; v  I. I, t3 a3 T0 z) y  |
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P_B and P_C is similar' J" l: m$ O$ ]2 I1 \) R1 j) L' @
triangular 30,60,90 min4 P3 ~0 D& q( m- g
u 60,30 min
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2 X" x) |+ Y3 C8 N- ]' m- b+ gin P_C, you need to send to die.2 ^2 d; [) h, M# A; _3 T* J
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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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  O6 O" Z) F0 Q: m0 HRemember 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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