Electrification of hydraulic linear actuators
Pakarinen, Tuukka (2021)
2021
Konetekniikan DI-ohjelma - Master's Programme in Mechanical Engineering
Tekniikan ja luonnontieteiden tiedekunta - Faculty of Engineering and Natural Sciences
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Hyväksymispäivämäärä
2021-12-27
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202112149216
https://urn.fi/URN:NBN:fi:tuni-202112149216
Tiivistelmä
The objective of this thesis is to determine the extent to which electromechanical linear actuators (EMLA) can meet the requirements of hydraulic linear actuators (HLA) in mobile working machines (MWM). The European Union (EU) and governments are accelerating the electrification due to environmental concerns by directing original equipment manufacturers (OEM) towards it through decisions and subsidies.
The public catalogs of OEMs of EMLAs and MWMs are used to collect the specifications and to define the requirements and performance characteristics of EMLAs. Based on them, the comparative quality function deployment (QFD) analysis is performed, which seeks to determine the relative rankings of the most competitive EMLAs. The understanding of the EMLA market is also facilitated by the OEM-specific requirement tables and the specification tables which include more OEMs than the QFD analysis.
Maximum dynamic force of an EMLA is the most significant performance characteristic. Classified according to it, two OEMs, Creative Motion Control and Motiomax, are capable of manufacturing EMLAs which can produce maximum dynamic forces of more than 1000 kilonewtons. Dynamic forces exceeding this limit are needed in a wide range of MWMs. Based on the QFD analysis and the specifications, Motiomax, Creative Motion Control and Ewellix can manufacture the most competitive EMLAs which can operate as a part of a MWM.
The public catalogs of OEMs of EMLAs and MWMs are used to collect the specifications and to define the requirements and performance characteristics of EMLAs. Based on them, the comparative quality function deployment (QFD) analysis is performed, which seeks to determine the relative rankings of the most competitive EMLAs. The understanding of the EMLA market is also facilitated by the OEM-specific requirement tables and the specification tables which include more OEMs than the QFD analysis.
Maximum dynamic force of an EMLA is the most significant performance characteristic. Classified according to it, two OEMs, Creative Motion Control and Motiomax, are capable of manufacturing EMLAs which can produce maximum dynamic forces of more than 1000 kilonewtons. Dynamic forces exceeding this limit are needed in a wide range of MWMs. Based on the QFD analysis and the specifications, Motiomax, Creative Motion Control and Ewellix can manufacture the most competitive EMLAs which can operate as a part of a MWM.