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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,9 K+ u9 ^( F: }% q% n4 B! s
  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., L8 L% E+ S: T8 F1 Q& P
  Loads are processed by each operator for the following time:2 U, C. l! h4 Z9 R. @& h: ?
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.4 Y$ V% F4 C( u+ [, v; u3 ?' s
  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.% d+ ?6 a# \, u$ r# I, I+ l3 Q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.$ Q% N- r' _; O" M7 T
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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5 `# e/ v0 l  g( [: ]问题:
6 W% H" |& T6 {After running the model for 10,000 days, what was the average number of loads in each process?
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) L0 h* i  V- W9 ~9 u不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving" M, t4 h  E& _) q+ ]+ O
move into Q_wait /*Capacity is infinte*/
/ ~* _! k( h2 m. {7 g* D) `& gmove into Q_process /*Single capacity*/' D, ?3 `2 `6 I: {( G0 ]

- j9 |- W" ]. Quse R_A for n 60,10 min /*Resource A*/
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& x7 k9 B* e+ D* z- ^send to P_B
  g+ a" q/ d( G- R0 U4 p- i1 W( E, @end/ r$ W' k' v& Q+ z1 y& b- q- _3 s
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P_B and P_C is similar
3 {' B3 y/ _; [# I. C9 atriangular 30,60,90 min/ O; M) y' H& I
u 60,30 min! A4 T% u2 b# S  F7 h+ B

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1 V  p  y7 o2 D! Y: n' S9 L3 q6 M( b. ^in P_C, you need to send to die.! t; m# T0 B' V! w( t

& g& R7 `% u; T1 v7 a) U: iThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.' e7 J& D( {2 t5 k# p0 s
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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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