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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,
2 m9 n) R1 ]5 T/ M1 B/ Y6 s- q  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.
: x; D8 |2 A5 ^  Loads are processed by each operator for the following time:
" i" H/ H6 ]" A( [# [% D+ @5 d  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." q: ?7 _5 K- V3 ]. X1 W, 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.: K! Z% m8 n8 |$ d7 V" w2 Q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.6 b# y9 K2 h& k. c5 }) @6 X6 [) x
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:
3 D7 j* l% E0 t- w& d+ ^1 R- h: vAfter running the model for 10,000 days, what was the average number of loads in each process?
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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) [$ j% Q* L. t/ N1 q/ X
move into Q_wait /*Capacity is infinte*/; c2 S8 V; C3 \$ O4 a$ W0 d
move into Q_process /*Single capacity*/
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2 @7 K1 D3 I7 y1 g; Yuse R_A for n 60,10 min /*Resource A*/
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/ q0 h- P0 z( P* S: Dsend to P_B
2 ?7 N- g' l" R1 M! o! j6 Gend
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; q. y* i/ r' f; X2 A, n! g+ C6 zP_B and P_C is similar$ U9 y% I* K# s' f" f, k
triangular 30,60,90 min
+ c) g  ^8 h- z. m; pu 60,30 min8 _9 A5 A# }  ]3 D. ?: s9 x7 ?

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; q: R3 O; }' ]0 ^" Q! T. cin P_C, you need to send to die.
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6 G! D; x1 k' S8 A6 Q2 lThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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- q) u5 D  L: d+ xRemember 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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