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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,
5 a4 b2 J3 w# I7 ?( L6 Z  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.7 r$ f. ?. }( y# \* M
  Loads are processed by each operator for the following time:
# t- ^& m' {4 L9 S# T; A  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
) D. M  g( X. b! |5 Y; e# u5 Q  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.5 y& B6 o' ]: V* b; d# X: h
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 B) J2 s$ y7 o% Y8 ?, B  ySend 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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1 c& A/ Z% C  f  a3 s  l$ T问题:
" }0 B' I9 n5 E- VAfter 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
: p; H# B0 r/ @$ I' A0 G) F( `move into Q_wait /*Capacity is infinte*/4 ]' U0 l0 {$ F: f, V# P
move into Q_process /*Single capacity*/) n8 S" {# I3 R# i8 N7 M" V
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
2 e  c9 S6 }& K6 nend" [/ N( A( T* C

% ^( G, t' d" R6 c4 @1 d: uP_B and P_C is similar) |8 R9 r! X4 \8 h
triangular 30,60,90 min
" M* e+ k9 l- w' J1 Z4 N! Du 60,30 min5 t: q  I. j* p8 K( R( k2 s

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4 U- U3 x  ~& z2 s( W4 R; C5 Bin P_C, you need to send to die.
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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.
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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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