Zobrazeno 1 - 10
of 638
pro vyhledávání: '"Kay Hameyer"'
Autor:
Julius Müller, Marius Franck, Kevin Jansen, Gregor Höpfner, Jörg Berroth, Georg Jacobs, Kay Hameyer
Publikováno v:
Machines, Vol 12, Iss 9, p 649 (2024)
In electrified vehicles, the masking noise behavior of internal combustion engines is absent, making the tonal excitation of the electric machine particularly noticeable in vehicle acoustics, which is perceived as disturbing by consumers. Due to manu
Externí odkaz:
https://doaj.org/article/6abc69f508e94988a62a6de29019cc7a
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 2, Pp 407-414 (2023)
Rare-earth permanent magnets are coated in order to avoid corrosion. When considering the rated geometrical properties of a sample, the coating thickness has to be known precisely as it wrongly enlarges the magnetically active volume which in turn af
Externí odkaz:
https://doaj.org/article/ad0cd891f3a94cbf9c7b0f8e4552d15b
Publikováno v:
Vehicles, Vol 4, Iss 4, Pp 1365-1390 (2022)
In this work, a machine learning-based energy management system is developed using a long short-term memory (LSTM) network for fuel cell hybrid buses. The neural network implicitly learns the complex relationship between various factors and the optim
Externí odkaz:
https://doaj.org/article/06ec5d2f481149bcb8f31f4ef24d53f4
Publikováno v:
Archives of Electrical Engineering, Vol vol. 71, Iss No 4, Pp 865-880 (2022)
To reduce the losses of the power electronic inverter, the voltage slew rate (d u/d t) of the electric motors supplying voltage is increasing. As steep voltage slopes excite high frequencies in the megahertz range, transient phenomena in the winding
Externí odkaz:
https://doaj.org/article/6d456b7ee4384951bbed7692d4f2611f
Publikováno v:
Archives of Electrical Engineering, Vol vol. 71, Iss No 4, Pp 949-961 (2022)
Due to speed-dependent centrifugal forces, the support of the torque, static mechanical stress introduced by manufacturing processes the laminated core of rotating electrical machines is exposed to considerable mechanical stress. The resulting stress
Externí odkaz:
https://doaj.org/article/ae89fb98ee744538b47abdef85eb1b5d
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 3 (2023)
Different buried permanent magnet arrangements in rotors are compared based on electrical machines found in literature regarding high-speed capability. An analytical approach is presented to analytically calculate mechanical stresses in the bilateral
Externí odkaz:
https://doaj.org/article/5f7cbf79f92e4ab68788bfa85635d7c7
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 3 (2023)
This paper studies the influence of different cooling technologies on the power density of a traction machine for heavy-duty distribution transport. A prototype induction machine is built with a housing cooling jacket, potted end-windings, entire win
Externí odkaz:
https://doaj.org/article/838bbabd13d94b3c895a0a828062b665
Publikováno v:
Archives of Electrical Engineering, Vol vol. 71, Iss No 3, Pp 789-804 (2022)
An integration of the electrical machine and the gearbox is attracting particular attention for the design of modern electric and hybrid drive trains, since it saves overall space and subsequently increases the power density. Another benefit of a hig
Externí odkaz:
https://doaj.org/article/c386757e694441a7a36dfc4ac0d8f9f9
Publikováno v:
AIP Advances, Vol 13, Iss 2, Pp 025105-025105-6 (2023)
Losses during the operation of electrical machines heat up permanent magnets which in turn changes their demagnetization behavior. An elevation of permanent magnet’s temperature usually correlates to a decreasing remanence and coercivity. The relat
Externí odkaz:
https://doaj.org/article/5195d0185fc74324a8d20ae336fa4c15
Publikováno v:
Archives of Electrical Engineering, Vol vol. 70, Iss No 3, Pp 719-730 (2021)
Production deviations have a remarkable effect on the radiated sound of electrical machines, introducing additional signal components besides the fundamental field waves which significantly change and enrich the subjectively perceived sound character
Externí odkaz:
https://doaj.org/article/4b6468f247e7480e8532fb46a5ffa267