本人初学auto mod,有一道题目希望大家赐教

daphanezhang

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，
  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.
) h' G% \! d( g' G  Loads are processed by each operator for the following time:
) W) U; y6 Z" _+ {" ?: s  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  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.
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! I& K, f, V4 @2 w. s/ E% ]2 `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.

问题：
: Q. a2 F, @1 }3 Q  @After running the model for 10,000 days, what was the average number of loads in each process?

不胜感激！

YingliYuFeng

begin P_A arriving
move into Q_wait /*Capacity is infinte*/
( F$ z7 o  d' m( Vmove into Q_process /*Single capacity*/
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: ^# A2 r& `# X. M; _' A. Ause R_A for n 60,10 min /*Resource A*/

send to P_B
3 q2 ^: |4 p1 _$ D1 [end
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P_B and P_C is similar
0 R* W9 K1 N2 S$ a1 }" ~7 ptriangular 30,60,90 min
u 60,30 min
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: b6 N3 [& X" [! k8 |+ p
+ b7 U% m7 y+ m) k6 Nin P_C, you need to send to die.
5 E! C3 F) C, V8 o  w; o
8 [& }) t6 O0 H( DThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.

; Z+ x3 O2 i  T  U* ]7 X  t2 C
Remember to turn off the animation before you run your model.

daphanezhang

thanks...