Manufacturing Analysis Paper Discussion 20160309
Transcript of Manufacturing Analysis Paper Discussion 20160309
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Modeling and control of manufacturing procGetting more involved
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Astract_ 大綱
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Much of this the detachment comes from an absence
techniques that can deal directly with the actual manufacturia material transformation process that produces a desired ob
the term of specific geometry and internal propertis. Instead,
have focused on using exiting methods on process in
problems, such as position control and trajectory following o
forward process parameter control, thereby only indirectly the actual process output
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"ntroduction
Process operation ;
Minimie production variation. Maximie productivity. Match output. !igh bandwidth response. Maximie stable bandwidth.
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" #he output from any manufacturing process are by d
geometry and properties of the product." #he input is that set of machine variable that have a
diterministic causal effect on the output." #he input output relationship is parameteried by the cha
the wor$piece material" #he wor$ing enironment or boundaries" #he basic characteristic of the machine in use
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#he time constant represents either the process dynamic or the
of the process for completion of single product. #he measurem
used to delineate various forms of process control
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%ll processes are subject to some type of feed bac$ c
automatic or human operated and even no control involve fe
form of costumer complaints or waranty recall
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Page 5 Process Output Control
Multivariable output, nonlinear, highly coupled process ust !ith"
#se adaptive paraeter"
#se o$ control !eighting $actor" prevented attepting %erosoothed response&no large band!idth penalty'
(el$)tuning control !ith pole)placeent&!ittenar*'accoun
behavior and stable" #se rapid oscillation o$ the !elding torch along or transverse
o$ travel" re+ection o$ realistic disturbance, enhance producper$orance"
nvolve the distribution o$ a controlled heat -u. into the !eld
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Output Control o$ a Parallel Process)(ha
Controlled 3 (heet oring 2 rapidly recongurable, discreti%ed $oring sur$ace !as
developed"
e$" g 10"
ools cobined the pins $or suare array in a housing"
Claped in a housing, separated coluns" prevent pininteraction"
Prograable single die eleent" shape can easily be
(and!iching the sheet bet!een layers" soothed the
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Output control o$ a Parallel Process)(ha
Controlled 3 (heet oring he second e.aple involves a parallel process8sheet
$oring"
eal)tie response
9igh) per$orance shape controller
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One)step)ahead approach
2 e"
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Controller Per$orance
(iulation o$ this control schee reuires a process odconsiderable cople.ity"
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Closed)loop control algorith $or
e.perients
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#& A