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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,
1 F: T* Y5 L6 k5 {  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.
; l! c: O8 F8 [* V. x  Loads are processed by each operator for the following time:
0 T& H4 p' M. e, n  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
3 w- e0 k4 M# J0 h& 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.' g9 p2 X6 X/ d
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% F, u; P, o+ M$ Q5 m- A' L
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.
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问题:4 T* _0 W4 x3 M* j
After running the model for 10,000 days, what was the average number of loads in each process?9 q2 |9 F9 o# R2 W) C, s, A

, Y( M- M- f( J1 D. @不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
" F9 g+ j/ j- {; L% h1 tmove into Q_wait /*Capacity is infinte*/
4 n' ?' ]1 ]- k) N* s$ Dmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/) m% Q7 f; ]! U# v, d
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send to P_B" X$ i% H2 e$ n3 s
end
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P_B and P_C is similar8 Q! ?6 o. G5 W  f9 H3 p% l( N& E
triangular 30,60,90 min
7 x" Y2 P9 ?- ]6 K: F+ y1 Du 60,30 min
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0 B9 z; l- X/ G& g7 Y, V: _3 y' `in P_C, you need to send to die.
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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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/ W6 r4 Y! L8 {. F6 E( ]: W. t8 E+ e& {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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