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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,
5 K- ^$ J$ C1 h$ L0 B6 @  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.
& e( @: w: F- _) g  Loads are processed by each operator for the following time:
5 `$ J8 ~; \% N2 ]4 `$ [% N  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: P' z& P0 @: Y; B6 M0 A9 E/ G  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.
8 |6 I6 Y- O# ]* r1 z' V  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
$ u+ P0 u5 W8 [1 ~* o7 jSend 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.( Z" b- Q6 r+ e, l' y
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问题:
. F4 l+ K6 m! T  @9 u4 YAfter 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
' V3 L) ]) Q0 b& cmove into Q_wait /*Capacity is infinte*/
% F$ }1 C+ Z$ Z- X) f1 @move into Q_process /*Single capacity*/
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: U1 h* f5 {5 H6 J+ V# Quse R_A for n 60,10 min /*Resource A*/
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send to P_B
' C4 D3 \" T7 y. ~- Nend. j" F* a( r( X+ a9 `% c0 ^
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P_B and P_C is similar
8 {- _0 `4 s. [) P# Otriangular 30,60,90 min, S- X) T% C1 h& x" d
u 60,30 min
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8 _. O; Q7 z! c# }in P_C, you need to send to die.' i, W/ M8 \# ^" T0 l! L: }

% b* E  o1 y! ]/ q/ X1 G2 IThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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0 T* D6 t9 g$ M  tRemember 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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