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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,
/ k0 H3 P4 e+ y2 Q7 H- H1 W  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.
& R: e( P) S. t, n: k6 X* i1 I  Loads are processed by each operator for the following time:0 v* v9 g" j# F4 J7 t
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% f/ a- C) ^8 {1 \. f
  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.
0 y. [* }  Q1 }, R& Y! i  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 R- H4 m2 H" B# a% W% {5 s( L
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.7 n4 F- T/ T, K& Y- m
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问题:
. }6 b$ y* r5 y; uAfter running the model for 10,000 days, what was the average number of loads in each process?7 Q3 H0 h) Q4 S- |

& \0 G% x7 b8 {3 ?不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
- W- x6 g  x4 j5 N- H$ l8 Rmove into Q_wait /*Capacity is infinte*/5 t, \% T$ {; t9 C! A; a! O, _
move into Q_process /*Single capacity*/
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9 o$ Z$ T/ L8 Z. d( p( o) duse R_A for n 60,10 min /*Resource A*/6 T6 d* A! Q4 |1 O5 i  x
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send to P_B
" U) L" }# A* j+ Mend
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! w( N6 m- A4 D+ @4 z" e( QP_B and P_C is similar
4 C" U' }9 k0 ftriangular 30,60,90 min
0 z, M/ @4 m7 c1 gu 60,30 min
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5 C- U3 q( T- hin 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.! H- P4 b& u1 T: A/ r& o
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8 P9 g( }  j0 n' C( ?! ?
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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