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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,
$ M! Z: m$ O, R, }5 M  Y  u( h  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.
) T% t. f' r! }# V7 j3 W& m; u  Loads are processed by each operator for the following time:
7 \8 s- k4 |& B' y/ v+ v  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 ^, i4 @& }, U) B2 Z$ e7 a' 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.1 Z+ `- {' N& ~4 s3 E- B+ Y; z
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- r7 S/ i; k8 I  [3 j
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." D5 k% a0 v' G2 k3 |* |
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问题:3 T: U7 \7 R" A! ?2 n
After running the model for 10,000 days, what was the average number of loads in each process?, T9 D7 k& w$ Y* |$ L
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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
* |  ~' O$ ]2 @. }! J# P  pmove into Q_wait /*Capacity is infinte*/
" r- {: I7 q, h/ B5 xmove into Q_process /*Single capacity*/- J3 W, Z2 k/ X" I0 O

4 b3 O& V4 \# j; U( ?6 `use R_A for n 60,10 min /*Resource A*/7 i' l+ X4 h  [7 M( g: J. A
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send to P_B/ l; p7 @. j7 D( T. u6 m
end
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0 m; _7 l: P7 ^# VP_B and P_C is similar" o2 c3 x  |" l
triangular 30,60,90 min. y! Q' W, B1 i$ O4 s( B
u 60,30 min
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3 K  K3 Y0 g9 v; T7 _0 m2 y2 rin P_C, you need to send to die.
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. Q  M' P# z1 h4 }# T- l$ i) EThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.( w. X; t& b. {. b

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# v/ I4 X& X3 y6 [' r/ b/ H  QRemember 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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