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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,
/ I3 p/ {9 G8 o  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.
% G* E2 g3 a$ ?& b: A! C+ M8 o3 v& y  Loads are processed by each operator for the following time:; S* I& [3 E9 E& m9 z
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. c. J5 l* }/ F' o6 R" x0 a  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.6 N! b! q9 u- X0 P  D* G+ `6 l
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.) i, i. h/ l, b8 w
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.
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# M3 ^* }" M6 Q& T. u4 H% x( z问题:" [, _9 b# r* ^/ {0 W0 i7 N0 n
After running the model for 10,000 days, what was the average number of loads in each process?
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! U6 m: t5 [! A$ L1 \不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
6 r1 ^( z  f7 u5 mmove into Q_wait /*Capacity is infinte*/
2 X0 J3 m) b3 n) g* L2 M' r; G, bmove into Q_process /*Single capacity*/. n* w! z; C- b) y- |6 b, v6 b) j4 \

( W8 [1 C" Z, juse R_A for n 60,10 min /*Resource A*/* x, q  P) v: i" D! }& u

+ A# k9 k& I6 y" N* Wsend to P_B) j( ~5 ?  y" d8 @" v! w8 O
end. a; X' F0 |' `/ w8 f6 ^

1 M; L" I+ |( e, L' mP_B and P_C is similar
+ E. r7 t- M* F% \* [triangular 30,60,90 min4 ^4 B: m$ H. c/ J" [3 ?
u 60,30 min
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in P_C, you need to send to die.- G" J. }& m2 G% h2 t9 r' B5 p5 v& A
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.0 x! W  U9 T; j6 w% \+ L  K

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  J# j8 W6 ?% u: t4 GRemember 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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