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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,
7 Q' b3 u& I4 Z9 p1 A  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.% Q( w8 u; Q, r2 E
  Loads are processed by each operator for the following time:4 k/ z0 I; G6 J0 t
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
6 H- k# C! p/ q$ E  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.
: P; o0 x2 y1 e2 k9 T+ P  Worker_C does the job in a uniformly distributed time between 30 and 90 mins., w4 F% Y/ n5 F9 w; o$ l6 P- P1 Q
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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! H5 P4 ^% b/ J, V0 A3 T! n' r问题:3 }- K! p8 F9 c) ^. X( W. {$ `
After running the model for 10,000 days, what was the average number of loads in each process?
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5 R8 I+ ]1 y4 W- v) [不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving9 m6 e. @+ O' x1 k& ~' j1 \( c
move into Q_wait /*Capacity is infinte*/1 V& J7 ?" K' K; l3 \- C8 T3 D1 @
move into Q_process /*Single capacity*/) e) h2 w. H) I, @* l: N* D

& o1 K! k1 u- J" g1 a0 B$ N  fuse R_A for n 60,10 min /*Resource A*/( E8 w( T" _+ Z3 L* T+ ?" B6 s' A
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send to P_B
7 z1 ~' z& s: _- q6 K  T2 Cend
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& ~( F3 p" `% U5 iP_B and P_C is similar! s& p3 \  K+ V8 ]) u/ F( s
triangular 30,60,90 min
3 ~- y- S/ X# \% q" v) Cu 60,30 min% y- u$ S* O  w

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in P_C, you need to send to die.
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2 B, q0 e$ V( b& eThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days./ ^( d* [3 ]4 D, G& I. I$ D# r
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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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