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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 ]. R/ \- f( b4 ^3 p% M  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.
' q3 X4 S9 _% }* K" A) T  Loads are processed by each operator for the following time:
- b5 u# w' {5 p( q1 K  f  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, J* v" E( m" w/ o7 f  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.
# U/ Y, Z( [5 P0 k6 s6 K  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. M' j- z, M8 E* q3 M  G
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.) p* E2 W: N8 x# A. v# H) b
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问题:
3 q$ y. p. k' K% k7 zAfter running the model for 10,000 days, what was the average number of loads in each process?: `! V8 y1 f) _. E+ t9 o% m
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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 `( ^, _7 ~( |3 Pmove into Q_wait /*Capacity is infinte*/
3 ?4 l3 w  `7 g% S: Emove into Q_process /*Single capacity*/) |8 `& a$ j4 G
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use R_A for n 60,10 min /*Resource A*/4 K: R+ U( y7 ?$ B- C

$ E& Y) w, @6 @! a5 O( }) isend to P_B
+ U- v4 x& m0 x3 bend+ e% t# [) O2 ^) |  `) n1 O

2 H7 D7 g9 o- ~P_B and P_C is similar
& ?' d" m3 g: U6 z4 _- m5 e2 Xtriangular 30,60,90 min3 y8 d4 d4 ?9 D* t5 W/ H4 q0 m
u 60,30 min' c' ~* T/ `# V1 j, u

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+ X7 X9 ^* P/ E5 `, o1 ein P_C, you need to send to die.) P% W; t. g* I( ~6 t' O) r

! |- N8 y0 `* d& N3 D# [Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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" Q6 h0 U5 e8 \
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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