Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Per Johansen"'
Publikováno v:
Modeling, Identification and Control, Vol 41, Iss 1, Pp 29-40 (2020)
This paper proposes a novel generic methodology for kinematics of spatial rigid-multibody systems with and without lubricated joints. In this method CAD surface representations in the form of non-uniform rational B-splines (NURBS) are used to address
Externí odkaz:
https://doaj.org/article/ab81d5d007d44c7ead98b6f52cdbfca1
Publikováno v:
Modeling, Identification and Control, Vol 40, Iss 2, Pp 125-132 (2019)
In this paper, the challenges regarding the application of a switched control approach to a digital displacement machine (DDM) are discussed. The system under consideration is initially presented. Subsequently, the reasons for considering the design
Externí odkaz:
https://doaj.org/article/b8b7601b7dfa4c0990e8091446b031b6
Autor:
Elias Vagn Hansen, Per Johansen
Publikováno v:
Energies, Vol 15, Iss 9, p 3240 (2022)
Adaptive calibration for ultrasound reflectometry methods used in the detection of lubrication film thickness is of great research interest. This is mainly due to the versatile non-destructive implementation of the technology in industrial applicatio
Externí odkaz:
https://doaj.org/article/44fe728e2f89428a9e4844e0ed173aee
Publikováno v:
Modeling, Identification and Control, Vol 39, Iss 3, Pp 167-177 (2018)
To enhance the use of the Digital Displacement Machine (DDM) technology as the future solution for low speed fluid power pump and motor units, a Model Predictive Control (MPC) strategy is presented. For a low speed DDM, the conventional full stroke o
Externí odkaz:
https://doaj.org/article/dd8d6e34d8404b9abd75b6de519edd3f
Publikováno v:
Modeling, Identification and Control, Vol 39, Iss 2, Pp 91-105 (2018)
This paper investigates the many complications arising when controlling a digital displacement hydraulic machine with non-smooth dynamical behavior. The digital hydraulic machine has a modular construction with numerous independently controlled press
Externí odkaz:
https://doaj.org/article/76c90fe0096745e5bff4d03a0126b4c5
Publikováno v:
International Journal of Management, Knowledge and Learning, Vol 2, Iss 1, Pp 101-121 (2013)
Leira Prison is a branch of Trondheim Prison, functioning as a relatively small,open prison with a maximum capacity of only 29 inmates. Leira Prison appliesthe method ‘consequence pedagogy.’ This article aims to pinpoint howconsequence pedagogy i
Externí odkaz:
https://doaj.org/article/0edcc8723bfb4e4eac2804a9eb2e197e
Publikováno v:
Hansen, E V, Rendbæk, J, Almind, L & Johansen, P 2022, In-Situ Lubrication Film Thickness Measurements in a Radial Piston Motor Using Adaptive Ultrasound Reflectometry . in Proceedings of the BATH/ASME 2022 Symposium on Fluid Power and Motion Control ., V001T01A025, American Society of Mechanical Engineers, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, Bath, United Kingdom, 14/09/2022 . https://doi.org/10.1115/FPMC2022-89380
Lubrication film thickness monitoring between moving contact surfaces within industrial machinery is of great research interest because it is linked to the efficiency and rate of maintenance of the machine. Ultrasound reflectometry shows potential wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a9b6b66e1055c7fce4e64bc290d0eb0
https://vbn.aau.dk/da/publications/c186e65a-e515-4e47-8bbc-2d0b10bebbbe
https://vbn.aau.dk/da/publications/c186e65a-e515-4e47-8bbc-2d0b10bebbbe
Autor:
Per Johansen, Michael M. Bech, Sune Dupont, Uffe N. Christiansen, Jens L. Sørensen, David N. Østedgaard-Munck, Anders Bentien
Publikováno v:
Johansen, P, Bech, M M, Dupont, S, Christiansen, U N, Sørensen, J L, Østedgaard-Munck, D N & Bentien, A 2022, An Experimental Study on High-Flowrate Ultrasonic Particle Monitoring in Oil Hydraulics . in Proceedings of BATH/ASME 2022 Symposium on Fluid Power and Motion Control, FPMC 2022 ., V001T01A035, American Society of Mechanical Engineers, New York, BATH/ASME 2022 Symposium on Fluid Power and Motion Control, FPMC 2022, Bath, United Kingdom, 14/09/2022 . https://doi.org/10.1115/FPMC2022-89721
Johansen, P, Bech, M M, Dupont, S, Christiansen, U N, Sørensen, J L, Østedgaard-Munck, D N & Bentien, A 2022, An Experimental Study on High-Flowrate Ultrasonic Particle Monitoring in Oil Hydraulics . in Proceedings of the BATH/ASME 2022 Symposium on Fluid Power and Motion Control ., V001T01A035, American Society of Mechanical Engineers . https://doi.org/10.1115/FPMC2022-89721
Johansen, P, Bech, M M, Dupont, S, Christiansen, U N, Sørensen, J L, Østedgaard-Munck, D N & Bentien, A 2022, An Experimental Study on High-Flowrate Ultrasonic Particle Monitoring in Oil Hydraulics . in Proceedings of the BATH/ASME 2022 Symposium on Fluid Power and Motion Control ., V001T01A035, American Society of Mechanical Engineers . https://doi.org/10.1115/FPMC2022-89721
In this article an experimental analysis on detection of particles in oil hydraulics by an in-line, high flowrate ultrasonic sensor is presented. This experimental study is conducted by the implementation of a particle concentration sensor prototype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6a389dea2d08ec40ad1f2493669fd0d
https://doi.org/10.1115/fpmc2022-89721
https://doi.org/10.1115/fpmc2022-89721
Publikováno v:
Modeling, Identification and Control, Vol 41, Iss 1, Pp 29-40 (2020)
Cerimagic, R, Fajstrup, L, Andersen, T O & Johansen, P 2020, ' An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints ', Modeling, Identification and Control (Online), vol. 41, no. 1, pp. 29-40 . https://doi.org/10.4173/mic.2020.1.3
Cerimagic, R, Fajstrup, L, Andersen, T O & Johansen, P 2020, ' An Isogeometric Analysis Approach to Kinematics of Spatial Rigid Multibody Systems with Imperfect Joints ', Modeling, Identification and Control (Online), vol. 41, no. 1, pp. 29-40 . https://doi.org/10.4173/mic.2020.1.3
This paper proposes a novel generic methodology for kinematics of spatial rigid-multibody systems with and without lubricated joints. In this method CAD surface representations in the form of non-uniform rational B-splines (NURBS) are used to address
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838ea8027ea9d4fbb5844ad79dbc68e4
http://www.mic-journal.no/PDF/2020/MIC-2020-1-3.pdf
http://www.mic-journal.no/PDF/2020/MIC-2020-1-3.pdf
Publikováno v:
Johansen, P, Grønkær, N, Langbak, A, Krempin, S & Schmidt, L 2020, The Challenge of Feedback in Fluid Power Tribotronic Control Systems . in Proceedings of the 2020 Bath/ASME Symposium on Fluid Power and Motion Control ., V001T01A025, American Society of Mechanical Engineers, 2020 Bath/ASME Symposium on Fluid Power and Motion Control, Bath, United Kingdom, 09/09/2020 . https://doi.org/10.1115/FPMC2020-2756
The hunt for increased efficiency and reliability of fluid power components have entailed a great deal of research on loss and wear mechanisms by means of computational tribology simulation in the last decades. The vast amount of theoretical work wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61a9c8804061b39e8c8923fcad7b2062
https://doi.org/10.1115/fpmc2020-2756
https://doi.org/10.1115/fpmc2020-2756