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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,
7 C& m8 Z! ~' s, V# x0 G  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.: j" c" E5 N5 k4 w; G( ^) _
  Loads are processed by each operator for the following time:" {$ }, u$ K' N  e0 G, `4 i
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* N7 {2 q5 X2 w" m" n
  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 w) ?- u0 l: N  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.  \/ z# a8 V7 D) k8 |2 y
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.1 R9 m4 R, M! k2 E- F" k: e9 R
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问题:$ F+ K' ]7 U7 C/ |+ h& r" }
After running the model for 10,000 days, what was the average number of loads in each process?
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( b  ?1 K6 x3 L不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving$ k" z& O3 a+ l1 R! O1 y
move into Q_wait /*Capacity is infinte*/1 C" ^  _; N. w( j$ q
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/5 ^5 O, ~- u) s
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send to P_B. i- N* u" p2 t' d) F. n6 c5 U5 D7 m
end8 n- h; U8 B' X2 C: z4 a9 b" L

' t. S0 \) Z# N# P2 q& }5 tP_B and P_C is similar6 {0 D2 P. O- |
triangular 30,60,90 min- W( ~  s8 n" n( j
u 60,30 min
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in P_C, you need to send to die.- ]' x3 _2 i. [- V) f6 `
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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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