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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,
, V. d, Q3 d' W! y! Q4 H$ n2 U  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.( L+ d- I4 J3 K$ S
  Loads are processed by each operator for the following time:
8 c5 D! `$ q; F( v5 g  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! N# u8 R1 L# S' d& F9 q$ g! k
  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.
! \! b/ }  {: f8 m; T+ c+ \( d2 a: y  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) `* k0 Y0 L" \+ P6 k- jSend 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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" K4 P# S6 `: _# s0 u3 c4 E问题:
% w$ z& }4 F3 c7 ~! AAfter running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
; D9 z7 S1 b7 c: Imove into Q_wait /*Capacity is infinte*/
% [- C; z7 V7 t. h9 n, a9 Qmove into Q_process /*Single capacity*/
& F+ l  f+ X) n1 r2 R. h
6 ?# Y& w/ T& d3 Suse R_A for n 60,10 min /*Resource A*/
& p( m% U* r* ?- V7 d9 `! P) t+ Q5 F' Z  E- x
send to P_B7 R" \5 U4 m+ d! Z3 e
end
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! Q- o, L' T! ~P_B and P_C is similar. j5 A' |& c% C$ i0 T7 B3 u
triangular 30,60,90 min
) u- N+ U, p5 z- G, y% v' l, ku 60,30 min( ~% l) p$ `( A3 X" K7 R

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in P_C, you need to send to die.
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% m6 B+ _# t4 ?  |: TThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.6 B. P9 y4 s6 E# B7 W5 o

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; ~7 B- o* n6 `; [- lRemember 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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