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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,6 w. {/ l" T" @
  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.2 n$ F& H8 j; W- u# F
  Loads are processed by each operator for the following time:9 y! n' o; i* o& b* H% N& i4 H
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 g+ d- Q* f/ [3 ?1 ~  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.
% W3 y( o: x4 V) ^, b$ _7 u  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! y4 p; H+ L, B' ^5 c  \) h8 i. L6 J, ASend 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.! t2 B2 Q. e' ?

0 i2 o( ?6 l& ~! l# z& T问题:
6 g. n7 c9 A! L& }# S- }  tAfter running the model for 10,000 days, what was the average number of loads in each process?( p, E  ?) q3 [4 A, T5 W

" s$ a5 w, U$ C6 \% S) T不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
2 R9 h# x( R9 f  Mmove into Q_wait /*Capacity is infinte*/
  F9 I2 s# f# M. C5 c4 ~9 Smove into Q_process /*Single capacity*/
$ d& U  H4 x- w: y0 e
/ R( Q' m/ E# Q4 l: ~. Euse R_A for n 60,10 min /*Resource A*/$ n/ f3 ^- `) q8 H2 J
+ [$ @, M: \2 \0 g
send to P_B
- {* K' C  N# [8 ?) F* R3 ?end
  r. [0 }" t& G( P# G
& @$ @- B/ S! J' rP_B and P_C is similar
5 V7 W+ R) i; \1 `3 L. ttriangular 30,60,90 min* B% t- i4 k9 D, I" V
u 60,30 min6 q  D7 J- w; v

$ `) V! h, S, I* _8 z+ y
4 g1 b* z: i2 B8 S5 W. fin P_C, you need to send to die.
  M) q+ a% m$ f& u
# j& b& @$ m9 |& bThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
1 \# _2 Q2 F& Z. s2 h7 H. z; y; U" x1 f8 Y+ t

! y+ J0 O+ @# I5 H. D. mRemember 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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