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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,
$ B; a# I+ }' v7 q4 Y# k* I  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- y* Q9 |+ F' s. `
  Loads are processed by each operator for the following time:8 g( `( G  S4 E8 A' s
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.' w0 I  N, N9 _: V; P$ c
  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.
5 O0 Z6 b. l3 D) h7 C4 N! N: Y# l) c/ n  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." D# M* T4 x5 j& y/ z% P3 ^
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.7 i  h4 C7 S; |: r) w

4 F' u, M+ P* ~% v4 T. {) P问题:
& j  ^( a$ n! U9 ^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 arriving
' e* w8 c' m/ y  R- A" r" E2 J! R- cmove into Q_wait /*Capacity is infinte*/
1 e1 D% \, ^$ q+ ~$ o% _, Dmove into Q_process /*Single capacity*/
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9 u+ P! b* G' A8 N/ j6 |9 @use R_A for n 60,10 min /*Resource A*/: d2 _6 A: ?8 Z: Z; T- G# m
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send to P_B
  J7 B. d- b) o2 M; r* Iend
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P_B and P_C is similar1 Q% n- O# k# f' r/ A" m; Q0 Y  M
triangular 30,60,90 min% t' }0 o5 o" a& z
u 60,30 min
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in P_C, you need to send to die.6 Q4 ^9 y( ?5 p# S, \

8 k  j& u8 l% u: DThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days./ L/ p( Q: g7 h3 S# R

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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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