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.
) g2 t" m$ y( _$ S2 V) j5 l  Loads are processed by each operator for the following time:
5 ^6 K1 k; V5 k% y  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
# I, F5 p; m( c" O# Z6 L. e& Q  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.
2 I. X# q: e9 @7 F1 U, rSend 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.
0 I3 H" r, c+ V6 `3 S8 c- q
问题：
2 A( z( v, b. D; F0 JAfter running the model for 10,000 days, what was the average number of loads in each process?
: g" `  l4 p) V; L, g8 o
不胜感激！

YingliYuFeng

begin P_A arriving
move into Q_wait /*Capacity is infinte*/
move into Q_process /*Single capacity*/

use R_A for n 60,10 min /*Resource A*/

7 _5 I& m5 {" ]3 `0 Z* n% K7 S" Y9 D# Tsend to P_B
end

" s/ R; {+ o# x& zP_B and P_C is similar
; C$ i0 ?: p) l' ttriangular 30,60,90 min
& ^7 z, x# f" {1 mu 60,30 min
/ K3 m6 @* l) j# k5 _# W

in P_C, you need to send to die.

Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.


Remember to turn off the animation before you run your model.

daphanezhang

thanks...