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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,
( x/ x! u2 Q3 _9 W  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.
! Y) W) [7 b1 ]) z  Loads are processed by each operator for the following time:
; h- X$ w& ?- V* m& F1 k- o$ C  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.- M+ z2 @; I  M% }" U: h( K
  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." |+ A! n, r! U$ A0 d# l4 R
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.6 w/ C) [; C( `7 j" B
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.! q0 W8 f4 |) A! `. j: I
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问题:- }! ^# u  E$ _& |( E9 F1 G
After running the model for 10,000 days, what was the average number of loads in each process?! s" h& |1 o3 U7 ]; W. |4 @
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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; [: a( R* P# I" F, J1 a
move into Q_wait /*Capacity is infinte*/6 v! N4 I% E  Y+ M4 S. A
move into Q_process /*Single capacity*/  o- ?# {6 F& x: a; L& R

, p7 m" v: Z. o1 Euse R_A for n 60,10 min /*Resource A*/
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send to P_B
2 C5 b; R7 t* e7 W$ H2 c3 _, a* x2 ]( yend$ K/ n0 H6 x8 x) y0 o8 E5 m3 H

7 O8 [% Y# z5 T; {& FP_B and P_C is similar
8 p& V0 w* l1 R9 \& y' W' }triangular 30,60,90 min
  i9 s0 u1 }! p% W, k! ]8 Pu 60,30 min
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2 W) Y. j; ~  }! |. cin P_C, you need to send to die.5 j, P' Z- \( t; a
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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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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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