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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,0 T" c  E( y! a( v
  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.
/ v8 `7 N# b; f- m* ]; E  Loads are processed by each operator for the following time:+ u& D4 Q  F) t
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* B  J: ^+ |1 y9 ?# v' B  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.' N& w; k5 O" N% B- A
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 z* u# M3 n8 f8 pSend 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.& o0 V# z0 F5 t

8 H7 D4 i* N* K% ]) S' I1 f问题:
; l, }) f: S4 ^9 N2 @After running the model for 10,000 days, what was the average number of loads in each process?) m5 q( {; h( k: E2 c
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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 arriving1 w& P  o7 D4 g3 Z. ?
move into Q_wait /*Capacity is infinte*/
" T( c! H7 R; B8 h2 I  Xmove into Q_process /*Single capacity*/4 S- E- v( t# v
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use R_A for n 60,10 min /*Resource A*/0 z6 y  I/ a0 W) E  i- Y
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send to P_B
! T) t  L. f" e2 C, u) Oend5 M* W3 a7 L, ]) p3 }. m  @
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P_B and P_C is similar
) g& u5 n# s' vtriangular 30,60,90 min
5 R/ r6 @0 N2 D3 s9 _8 Gu 60,30 min
: F1 b" e9 ~. M1 C' ?2 N2 A- r* x( m4 d) {# I

: x4 I5 j# q* A2 Ain 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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) I! K' \  O8 g* WRemember 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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