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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,
9 h/ z, Y9 `- E7 B1 r: c  ^, z4 }9 z  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.
: |$ U- r6 E9 P6 [4 i8 R5 O" ]: B  Loads are processed by each operator for the following time:
; z" L1 E, G2 h) e  N  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" ~0 L: c9 H1 V$ ^: U8 ^  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.
! C6 d* }' e& Z; x' t  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! d  ?. v* K4 W6 {' u( ESend 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. }. i4 ]7 F) r3 ^- e

) }4 R5 S  R% H4 y; U9 O问题:* F" V4 |/ }3 d! `& E, c$ K3 u/ s
After running the model for 10,000 days, what was the average number of loads in each process?3 ?; q6 @5 V4 R0 q' J5 H* R
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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
7 |4 K6 ?. {- F4 ]% D2 e' q0 kmove into Q_wait /*Capacity is infinte*/4 s' d6 @( C. d
move into Q_process /*Single capacity*/# w5 _3 l) J1 [; J
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use R_A for n 60,10 min /*Resource A*/( M- [$ ]" b& N1 V. I3 |
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send to P_B
8 @* Y, W  V8 y1 ^7 k0 dend
: T$ j5 r7 C5 }9 W$ t- K) F( W6 K/ j* g" }) \
P_B and P_C is similar  r1 N( T, R& U, N+ [/ q# f
triangular 30,60,90 min
) V$ N, x3 Y) C+ [# Ru 60,30 min
+ |& u2 {  u. y9 v$ b  E5 t# a) v1 O# t

2 I) N9 A; b1 Bin P_C, you need to send to die.. V* w& f6 w: N

% L4 K* ~% ^9 ^2 g& _8 AThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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% B' K, Y" X. k; ~( y2 ]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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