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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F11%3A00197641%21RIV13-MSM-21220___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Thermal errors caused by the influence of internal and external heat sources in machine tool structure can cause up to 70% of total machine tool inaccuracy. Therefore, research on thermal behavior of machine tool structures is crucial for successful manufacturing. This paper provides an insight into the modeling of highly nonlinear (increasing with the complexity of the structure) machine tool thermal behavior using thermal transfer functions. This approach to modeling is dynamic (uses thermal history) and, due to its relative simplicity, it enables real-time calculations. The method uses very few additional gauges and solves separately each influence participating in the thermal error. The main objective of the article is to describe the estimation of angular deformations occurring at the tool center point due to thermal influences. Transfer functions are used for the identification and control of additional internal heat sources. The second aim is to compare modeling effort with approximation quality. A partial objective is to cover other nonlinearities occurring generally in machine tool thermal behavior. The approach has been verified on a closed quill (a simple and symmetrical machine tool part) and applied on a model of a machine tool structure which has been chosen as the least favorable from the thermal point of view. Thermal errors caused by the influence of internal and external heat sources in machine tool structure can cause up to 70% of total machine tool inaccuracy. Therefore, research on thermal behavior of machine tool structures is crucial for successful manufacturing. This paper provides an insight into the modeling of highly nonlinear (increasing with the complexity of the structure) machine tool thermal behavior using thermal transfer functions. This approach to modeling is dynamic (uses thermal history) and, due to its relative simplicity, it enables real-time calculations. The method uses very few additional gauges and solves separately each influence participating in the thermal error. The main objective of the article is to describe the estimation of angular deformations occurring at the tool center point due to thermal influences. Transfer functions are used for the identification and control of additional internal heat sources. The second aim is to compare modeling effort with approximation quality. A partial objective is to cover other nonlinearities occurring generally in machine tool thermal behavior. The approach has been verified on a closed quill (a simple and symmetrical machine tool part) and applied on a model of a machine tool structure which has been chosen as the least favorable from the thermal point of view.
dcterms:title
Compensation of machine tool angular thermal errors using controlled internal heat sources Compensation of machine tool angular thermal errors using controlled internal heat sources
skos:prefLabel
Compensation of machine tool angular thermal errors using controlled internal heat sources Compensation of machine tool angular thermal errors using controlled internal heat sources
skos:notation
RIV/68407700:21220/11:00197641!RIV13-MSM-21220___
n13:predkladatel
n16:orjk%3A21220
n3:aktivita
n8:S
n3:aktivity
S
n3:cisloPeriodika
4
n3:dodaniDat
n12:2013
n3:domaciTvurceVysledku
n9:7360940 n9:2128187 n9:2262002 n9:5190282
n3:druhVysledku
n4:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
191332
n3:idVysledku
RIV/68407700:21220/11:00197641
n3:jazykVysledku
n10:eng
n3:klicovaSlova
control; machine tool; angular thermal error; transfer function
n3:klicoveSlovo
n6:angular%20thermal%20error n6:control n6:transfer%20function n6:machine%20tool
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[7524ECD00339]
n3:nazevZdroje
Journal of Machine Engineering
n3:obor
n7:JQ
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n12:2011
n3:svazekPeriodika
11
n3:tvurceVysledku
Kohút, Peter Mareš, Martin Horejš, Otakar Hornych, Jan
s:issn
1895-7595
s:numberOfPages
13
n15:organizacniJednotka
21220