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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,
* W  `! J3 Y& C  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.# E  S  H) i+ R2 I. @" ~
  Loads are processed by each operator for the following time:* x0 o% D, V$ `. ?. R8 @0 X$ V
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 u2 k) |6 ^1 \/ N  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.3 x- X* _& ~& L/ q1 o( A6 l; O
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.1 |1 Q& G* Q* a5 i( o( S' A
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.
8 ]* ]. e$ B( n
6 ?% ^0 u/ j: k问题:
- o- i9 i5 [3 x) WAfter running the model for 10,000 days, what was the average number of loads in each process?! ]% {9 L3 v3 g" `9 d

5 O" {, f6 _, K" @; C* C5 M6 Q# S不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving  n$ M2 ~( r4 d  a& u
move into Q_wait /*Capacity is infinte*/
$ `1 w9 w$ l8 y3 w( U4 j8 @move into Q_process /*Single capacity*/
! V, ]/ E& d5 ]' U$ S+ e( `8 N+ F7 w  [$ F( |+ T5 d3 a) g
use R_A for n 60,10 min /*Resource A*/
- x9 F% I/ ]$ b$ u
9 g3 E8 q+ G4 ?send to P_B
5 D$ Q- Y, z* s8 D4 M0 P: E9 Send7 u$ P6 l1 `: }5 E0 [+ V9 M, @

' s( O" e' Z' p) l$ f1 |4 d. J5 eP_B and P_C is similar
7 E/ ]2 M& C: {; \: L/ btriangular 30,60,90 min
* U9 f5 t% A( Su 60,30 min
2 K$ K: r- I' v% R  ^/ k- n* R5 T/ Z" P' f6 k1 a

+ S5 o) o! \2 E1 k. h6 z. Jin P_C, you need to send to die.
# v) `% z. [, m/ u7 d6 s1 _; W. I! Y2 S7 p! p& G! _9 ]8 H0 E
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
  D0 T! `2 y) V6 j- J6 i, Z3 n- Y

, l& V+ y) G( [, z! aRemember 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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