Virtual sensor using model order reduction for real-time estimation of tool edge temperature

Virtual sensor, which is one of the applications of the digital twin, is effective for estimating physical quantities that are difficult to measure. This paper deals with estimation of real-time tool edge temperature by virtual sensor. The tool edge temperature is estimated by inputting the temperat...

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Main Authors: Masahiro TAKANO, Masayoshi SHINYA, Hiroyasu MIYAKAWA, Yuta YOSHIDA, Kenichi HIROSAKI
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2023-10-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/89/928/89_23-00159/_pdf/-char/en
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author Masahiro TAKANO
Masayoshi SHINYA
Hiroyasu MIYAKAWA
Yuta YOSHIDA
Kenichi HIROSAKI
author_facet Masahiro TAKANO
Masayoshi SHINYA
Hiroyasu MIYAKAWA
Yuta YOSHIDA
Kenichi HIROSAKI
author_sort Masahiro TAKANO
collection DOAJ
description Virtual sensor, which is one of the applications of the digital twin, is effective for estimating physical quantities that are difficult to measure. This paper deals with estimation of real-time tool edge temperature by virtual sensor. The tool edge temperature is estimated by inputting the temperature data of the endmill shank obtained from the pyrometer installed in the machine tool to the simulation model created in cyber space. The simulation performed in cyberspace is an unsteady heat transfer analysis, and a state space model with a reduced order of the finite element model using Krylov subspace method is adopted as the simulation model in order to allow real-time simulation. In addition, unknown heat input to the cutting edge was calculated by state feedback control using the temperature data obtained from the pyrometer and the simulation model. The tool edge temperature during cutting was estimated in real time using the developed virtual sensor with the heat transfer analysis block and the input estimation block. The estimated tool edge temperature changed significantly in response to changes such as chipping of the tool edge. The estimated temperature and the measured temperature by the thermocouple method generally matched.
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spelling doaj.art-98f242713f5e41b1b45e92bad93d0efd2023-12-26T00:20:42ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612023-10-018992823-0015923-0015910.1299/transjsme.23-00159transjsmeVirtual sensor using model order reduction for real-time estimation of tool edge temperatureMasahiro TAKANO0Masayoshi SHINYA1Hiroyasu MIYAKAWA2Yuta YOSHIDA3Kenichi HIROSAKI4Industrial Research Institute of IshikawaIndustrial Research Institute of IshikawaIndustrial Research Institute of IshikawaIndustrial Research Institute of IshikawaIndustrial Research Institute of IshikawaVirtual sensor, which is one of the applications of the digital twin, is effective for estimating physical quantities that are difficult to measure. This paper deals with estimation of real-time tool edge temperature by virtual sensor. The tool edge temperature is estimated by inputting the temperature data of the endmill shank obtained from the pyrometer installed in the machine tool to the simulation model created in cyber space. The simulation performed in cyberspace is an unsteady heat transfer analysis, and a state space model with a reduced order of the finite element model using Krylov subspace method is adopted as the simulation model in order to allow real-time simulation. In addition, unknown heat input to the cutting edge was calculated by state feedback control using the temperature data obtained from the pyrometer and the simulation model. The tool edge temperature during cutting was estimated in real time using the developed virtual sensor with the heat transfer analysis block and the input estimation block. The estimated tool edge temperature changed significantly in response to changes such as chipping of the tool edge. The estimated temperature and the measured temperature by the thermocouple method generally matched.https://www.jstage.jst.go.jp/article/transjsme/89/928/89_23-00159/_pdf/-char/envirtual sensordigital twinmodel order reductioninverse probleminput estimationtool edge temperaturestate space modelstate feedback controlfinite element method
spellingShingle Masahiro TAKANO
Masayoshi SHINYA
Hiroyasu MIYAKAWA
Yuta YOSHIDA
Kenichi HIROSAKI
Virtual sensor using model order reduction for real-time estimation of tool edge temperature
Nihon Kikai Gakkai ronbunshu
virtual sensor
digital twin
model order reduction
inverse problem
input estimation
tool edge temperature
state space model
state feedback control
finite element method
title Virtual sensor using model order reduction for real-time estimation of tool edge temperature
title_full Virtual sensor using model order reduction for real-time estimation of tool edge temperature
title_fullStr Virtual sensor using model order reduction for real-time estimation of tool edge temperature
title_full_unstemmed Virtual sensor using model order reduction for real-time estimation of tool edge temperature
title_short Virtual sensor using model order reduction for real-time estimation of tool edge temperature
title_sort virtual sensor using model order reduction for real time estimation of tool edge temperature
topic virtual sensor
digital twin
model order reduction
inverse problem
input estimation
tool edge temperature
state space model
state feedback control
finite element method
url https://www.jstage.jst.go.jp/article/transjsme/89/928/89_23-00159/_pdf/-char/en
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