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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,
+ k  [( Q0 I9 z( g$ Y  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; D/ A2 Q! Y  K5 r: v! w
  Loads are processed by each operator for the following time:
% R' G4 B4 m0 [! H/ [8 G7 x  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* h- f3 M: J4 S& q  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.7 E) r2 y( F) y4 f: P
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: m9 y4 r+ \( \
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.+ W% ]5 i$ i- G1 F
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问题:- u6 r" A+ G9 L* Q
After 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 arriving9 \! w* S! u& P8 V/ V. s
move into Q_wait /*Capacity is infinte*/# p. n+ G& L' S. V& O% h$ X
move into Q_process /*Single capacity*/
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) h) T" F( P/ ^  A3 |; Buse R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar* l$ w( v4 c; c4 n* S# w4 w
triangular 30,60,90 min
% y9 E8 b8 Y4 H& h1 C. J# R: du 60,30 min
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in P_C, you need to send to die.8 y7 v8 r4 O+ u$ x5 N4 L. ]! }

. U6 v: V. T, L2 T3 RThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.9 n+ P; T( b/ ~7 ^

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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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