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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,
! L* r4 I7 a1 z3 u/ `0 H* c3 ^7 Y  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.
# X4 v/ k# {2 F7 d, R  Loads are processed by each operator for the following time:8 L3 k- B5 {' X' x/ o
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.0 |, h# Q- e9 P+ W% F2 r
  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.
- u0 E5 v0 `) W+ b; h4 j( a  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
2 _/ v8 j6 [; }) I$ s/ S9 [# F! NSend 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.  c+ r  i/ A  |

% i: e" I7 S7 F问题:/ @0 r" W6 g, ^6 u+ x* q* }" }
After running the model for 10,000 days, what was the average number of loads in each process?1 v) l1 T6 d. _
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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
$ J7 {( O* U5 Vmove into Q_wait /*Capacity is infinte*/7 e! e/ R6 e, }- t# ?
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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4 r! [' R2 s. z1 V( k! S$ Osend to P_B
4 i* @) e# T1 t6 W- a& [end3 Y# O* o9 x2 }9 ~) E/ }
! c5 f7 h6 D; t% ~1 X* r  ^
P_B and P_C is similar) _9 c* g/ B7 J+ f7 W
triangular 30,60,90 min
$ a5 H" p7 x& R+ N2 V& }/ e& Ou 60,30 min7 g! d: Y: N2 [% M" B' ^
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in P_C, you need to send to die.. J: M$ N/ V) V

6 S6 [9 r; N) L+ CThen 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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