A data-driven approach to diagnostics of repetitive processes in the distribution domain [Elektronisk resurs] Applications to gearbox diagnosticsin industrial robots and rotating machines
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- Carvalho Bittencourt, André 1984- (författare)
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Alternativt namn: Bittencourt, André Carvalho, 1984-
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Saarinen, Kari (författare)
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Sander Tavallaey, Shiva (författare)
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Gunnarsson, Svante (författare)
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Norrlöf, Mikael (författare)
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- Linköpings universitet Institutionen för systemteknik (utgivare)
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Alternativt namn: ISY
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Alternativt namn: Engelska: Linköping University. Department of Electrical Engineering
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- Linköpings universitet Tekniska högskolan (utgivare)
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Alternativt namn: Linköpings universitet. Tekniska fakulteten
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Alternativt namn: Linköpings tekniska högskola
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Alternativt namn: Tekniska högskolan vid Linköpings universtiet
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Alternativt namn: LiTH
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Alternativt namn: Linköping University. Institute of Technology
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Se även: Universitet i Linköping Tekniska högskolan
- Elsevier 2014
- Engelska.
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Ingår i: Mechatronics (Oxford). - 0957-4158. ; 24:8, 1032-1041
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Sammanfattning
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- This paper presents a data-driven approach to diagnostics of systems that operate in a repetitive manner. Considering that data batches collected from a repetitive operation will be similar unless in the presence of an abnormality, a condition change is inferred by comparing the monitored data against an available nominal batch. The method proposed considers the comparison of data in the distribution domain, which reveals information of the data amplitude. This is achieved with the use of kernel density estimates and the Kullback–Leibler distance. To decrease sensitivity to disturbances while increasing sensitivity to faults, the use of a weighting vector is suggested which is chosen based on a labeled dataset. The framework is simple to implement and can be used without process interruption, in a batch manner. The approach is demonstrated with successful experimental and simulation applications to wear diagnostics in an industrial robot gearbox and for diagnostics of gear faults in a rotating machine.
Ämnesord
- Engineering and Technology (hsv)
- Electrical Engineering, Electronic Engineering, Information Engineering (hsv)
- Robotics (hsv)
- Teknik och teknologier (hsv)
- Elektroteknik och elektronik (hsv)
- Robotteknik och automation (hsv)
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