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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,
, S5 z  n* T7 P$ Y5 L3 T# ~: 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.2 ?+ t6 P# {/ |/ n
  Loads are processed by each operator for the following time:
7 r, W- Z" }( G; R& x3 f: b  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
- \2 X' W6 t3 u" `" ?" N  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.2 H- n2 g! E; i* ?& R
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* `1 _* m# y" X8 J- ^
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.. s, V. v- p0 n8 u

& ~2 T' y/ M# \$ C( W7 N/ Q问题:! c( ?6 Y* a+ Y1 E9 r1 p8 ~
After running the model for 10,000 days, what was the average number of loads in each process?7 I9 n6 F9 n- n9 _9 f. l: ^

3 ~+ f) @7 Q8 Q0 M不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving0 z' h0 Z' K6 q
move into Q_wait /*Capacity is infinte*/
6 F7 ?; U& Y3 N" V0 [2 |: J8 z; Zmove into Q_process /*Single capacity*/
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1 v/ ^3 e( L2 G% yuse R_A for n 60,10 min /*Resource A*/) c3 d( w5 T7 d+ g+ O1 z
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send to P_B
. j8 ]% J+ P5 u9 n& R4 nend9 ?" ]# s( I+ W! [& {" i3 h; t
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P_B and P_C is similar4 G& `* L1 @/ a! Z/ F
triangular 30,60,90 min9 L; ?# z# J3 _$ {3 S
u 60,30 min- [& I# h; I. q9 x% d6 K/ P- Z
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in P_C, you need to send to die.8 V! V# Z1 _* N# R% g( H
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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.9 g4 ]/ G6 I1 @  z

1 d3 g, y. G: l# A8 i$ x9 A5 F
; \8 `: \+ Q6 k: ZRemember 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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