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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,6 ~6 m& A' P; y2 `# j
  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 Q4 j  u* D. m! S# d  Loads are processed by each operator for the following time:: B' a+ }- R% Z: [0 l
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.+ [6 W2 E/ p1 m' V+ P# ]7 J. `; ]
  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.! M/ Q6 g; E& ^- a
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.# [4 Q6 V/ t; l* n) @/ C( T; P% p
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:9 p( B, b: t, f. e- E
After 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/ W/ {- K+ ]6 r" ^1 @7 g8 {8 d+ X7 d
move into Q_wait /*Capacity is infinte*/2 i) p& f$ @9 Y: w+ N& U" A
move into Q_process /*Single capacity*/1 _; j' s* `$ I( \) [9 E6 d2 D9 w
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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2 \* o: F5 `1 z. \$ n9 W3 tP_B and P_C is similar
( h" ]" [& |1 S6 ~- wtriangular 30,60,90 min. K( L8 z' u9 @+ ]
u 60,30 min
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3 _, t) Z3 R' A, s$ G, O2 y5 Iin P_C, you need to send to die.
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6 }- i4 Z( c8 `" o, G: @. ZThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days." T0 M9 c6 Q, y% o- `6 Q
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, a! g  k7 [  R" N! {6 RRemember 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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