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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,
; H9 W' ?1 t& A( 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.
. O* T/ u0 d! R5 j- E+ R  Loads are processed by each operator for the following time:
& L1 o% |0 j: X1 l% G; p% }' v( h  [  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! l9 M! U, b0 e& M- g! i4 i5 y! `
  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.& y$ F6 Y- |: k
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.( v* l" Y0 H& s  @1 c1 H
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:0 X* q6 {9 z: ^5 N# d9 @- Z1 _
After running the model for 10,000 days, what was the average number of loads in each process?' y1 Q. y6 r6 q3 ?' l, U0 r
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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: F( g! u* {& J5 J2 a/ ?
move into Q_wait /*Capacity is infinte*/8 S/ p* |' ]3 ~) U0 m/ @4 @
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
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, _. j( J6 S1 w  iP_B and P_C is similar
5 c* u3 G( R- \4 l9 j. etriangular 30,60,90 min+ d+ B9 J5 C2 n# [- O: N& g
u 60,30 min
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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.6 r& o7 F% P$ r# R
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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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