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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,
# C1 b/ k; B  n  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.; A' I8 V# Q  E0 G, o" T
  Loads are processed by each operator for the following time:8 E9 w* s  ?7 G2 ]# ?( G( Y. s
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! q- ^! U5 h! B7 ~% C/ J
  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., C1 [' p0 C4 W2 t) J
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( A  D4 ^% j* Y# ?6 s+ q0 |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.7 P1 j" e  A( Z, k

* C! ]# D' ^, U5 d& |+ r+ O问题:
7 G* Q" u# D& A) W' \After running the model for 10,000 days, what was the average number of loads in each process?7 C+ ?3 p/ E* R( Z

# j7 U9 G8 u' f0 E6 f% R不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving0 s+ `9 z# J  A
move into Q_wait /*Capacity is infinte*/2 F, Z4 s) f$ L9 U& v) W5 ^8 B; z
move into Q_process /*Single capacity*/6 ^4 N# }  z7 [

, O0 D2 u, G6 P3 xuse R_A for n 60,10 min /*Resource A*/, ?$ f1 P8 R8 R: k

3 w3 T3 j' x! H# ~  t; ysend to P_B
& B! R( g1 S; ^" f, N9 S3 ?end
  _1 K" L1 L; I/ m4 V1 p  f
" o7 C2 |$ Y8 @' A1 }6 T1 [P_B and P_C is similar
9 \) H6 w  b& @triangular 30,60,90 min. M9 x, i$ E* V2 g
u 60,30 min
/ W( ]! z; h  X2 y; `9 O7 F% N4 t# @, c
7 i1 n" H/ ^/ }( ~1 e- w
in P_C, you need to send to die.1 y5 N6 k5 n# W: p1 @

% y) l' g) I- |9 z5 {! W5 D5 QThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
; @) m! J' e# U$ p) _. E; S; L" R  W+ \- c$ p) I* O

; p. c0 L: D1 B8 r: E! jRemember 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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