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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 n% \5 p0 P6 ^) A: P9 F7 j3 t  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.
8 R& M! J. E3 G7 @  Loads are processed by each operator for the following time:
6 d5 c! Z6 b, S7 I  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., [  w4 k; a# j" I- r- _1 c
  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.
& Z+ r0 ?; B( Z' n- o& s( H  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& p0 U) t7 F# z9 r7 g. n
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.; }( {& B4 W! q- u7 ]+ D$ ]

, W  n9 e& ?2 ?/ t) P1 q' {问题:
- C% i# L. L9 r! dAfter 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' x& l4 p' t! I' _' {1 G7 b/ O# P' P
move into Q_wait /*Capacity is infinte*/
0 P* \6 Z& U4 y/ smove into Q_process /*Single capacity*/
0 `  C/ \5 U. |& b. I. D3 ?9 S- S
use R_A for n 60,10 min /*Resource A*/
4 |8 s$ ?( J) J- v1 R; J0 C1 s: ^! S: j+ i7 u+ Z: J3 J1 m. @
send to P_B- s5 x) V: c" ~4 q' A7 z" L6 V
end1 ?' c. U  e* D4 I# m5 l6 N5 a
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P_B and P_C is similar
' ?/ M1 r/ n5 F: striangular 30,60,90 min9 Z, D! c1 f' X- D
u 60,30 min
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% t) z2 U* p8 Y5 y6 Y% h1 f8 Xin P_C, you need to send to die.5 A# v1 [' K7 A& r. X# N; q
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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.7 k2 ^% b& ^: L/ L, x8 r# {+ x

1 ?5 n. {9 p7 V( D/ o
& J" \+ U, Z: PRemember 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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