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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,
4 z2 A6 I$ }/ l5 e  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.. U7 M: s6 b. Q4 F, Z1 {
  Loads are processed by each operator for the following time:) K9 q* P/ Q/ E1 f
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." b7 y7 j+ I% p! E1 G# M
  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.
( ^$ T7 Y% M' I( T' q  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 O* V3 }5 {- P$ q/ l+ y, j
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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问题:
( r7 P# a4 O3 Q1 b' J. `/ i3 N4 a# sAfter running the model for 10,000 days, what was the average number of loads in each process?' l" w8 W3 m2 m( O
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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
( \8 W' h. m; ]/ F9 H" Z  D; F/ Jmove into Q_wait /*Capacity is infinte*/& K: }; `( Q& [$ b( X; Z' O
move into Q_process /*Single capacity*/  B( ~4 l% W' k5 X2 v4 e; o

) ?2 e4 S/ f# v: V( Z; u) Cuse R_A for n 60,10 min /*Resource A*/- u4 j( Q; v/ f& [! p$ q

; K/ f  q2 l- \2 I% A! Xsend to P_B
. r" m7 q+ C. Pend
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P_B and P_C is similar$ `5 H& H! q, _  o  p
triangular 30,60,90 min( D9 f6 ]: ?1 R5 ~) g: P9 _2 B3 ^
u 60,30 min
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in P_C, you need to send to die.
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4 [4 Y6 O4 g& @0 d( q1 ?1 JThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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6 ^# x1 M! @) v/ C/ J( Z6 bRemember 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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