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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 [. Q& `$ \( {; p1 {9 q' ]$ T$ a  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.
' `* z# G$ P8 a( E: m  Loads are processed by each operator for the following time:" V" p8 b3 G6 Y
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% D3 q8 z8 V* @4 c  g
  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.0 v% A# S: M6 I+ f: R  S" ]
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! H! d& E* g' w8 ?( h# U$ ESend 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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3 A) B) g7 n1 F: i问题:" k: @/ l  x! W4 `0 W
After running the model for 10,000 days, what was the average number of loads in each process?% U, ]" f, j1 D

* Y* s  W& a6 d不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
6 K/ x0 u2 x/ P# @" D; _$ Cmove into Q_wait /*Capacity is infinte*/1 e! |6 @0 {9 e2 Z8 C) M
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B. V' d; j+ L( D0 A, A2 f
end
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4 z# n. x4 ~! w1 S5 t2 pP_B and P_C is similar
5 o; t" p3 m0 A6 V1 \; V( w5 O6 jtriangular 30,60,90 min$ I& G. p2 F: v, k8 s" J8 L
u 60,30 min
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- O/ q7 V# _' A7 qin P_C, you need to send to die.
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  T! ?" U3 t& EThen 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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