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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,
1 W: q( c$ E& Z) H8 J% G  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.
; O. C% P) v1 P: I  Loads are processed by each operator for the following time:! B. ?3 H+ M  ~
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: c/ G  B5 c! B* d. v# H  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.
8 N: B% E' L1 d# j9 f3 B. o3 b  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 D% j8 T0 b5 O* K% y0 `2 C( S
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 r5 |3 l9 S" h3 Z) J' G4 p$ p5 W

, C: K8 k6 x$ o问题:
5 f2 X8 r6 B- ?5 A/ \- D0 NAfter running the model for 10,000 days, what was the average number of loads in each process?: x! x9 |+ t. {, J0 X, T4 w* g7 u

" Z1 v1 `$ ~6 V! y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* c( i. I: W& n0 w8 jmove into Q_wait /*Capacity is infinte*/
/ L- ^* _0 y8 }' n, b  D# Vmove into Q_process /*Single capacity*/! _) }/ }+ G- O  P3 ?
3 Y8 R% P3 j% q' Z5 j) Y  Y* t  W2 A
use R_A for n 60,10 min /*Resource A*/
( X2 i8 `( w7 G% o! M% d3 s% c
6 y; ?9 i- _7 Ysend to P_B' y' U- y2 P3 D! R; g9 h
end
4 U& G, N, z: h
/ z6 [( K0 Z3 K7 K# }$ iP_B and P_C is similar
: ?5 v. I8 l& S% Utriangular 30,60,90 min
; r/ u4 V. P  d4 T. ju 60,30 min
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+ T8 Q5 g2 Y5 b. U2 j
  F1 b/ D5 ?% c3 q$ U. fin P_C, you need to send to die.
/ T" p; y# m! b$ Q8 y2 C9 a$ F$ ~* H3 A/ I+ n1 n5 C
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.- D( F6 S: j; P

+ y* y, H- K2 \" u2 K# w8 C  S7 f- o0 j) O6 w. U
Remember 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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