Temat: back-to-back - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Modal analysis of back-to-back planetary gear: experiments and correlation against lumped-parameter model
Autorzy:: Hammami, A.
Rincon, A. F. del
Rueda, F. V.
Chaari, F.
Haddar, M.
Powiązania:: https://bibliotekanauki.pl/articles/280785.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: back-to-back planetary gears
modal analysis
lumped-parameter
impact test
Opis:: In order to characterize the dynamic behaviour of a back-to-back planetary gear, experimental and numerical modal analysis techniques are achieved. Rotational and translational modal deflections are highlighted. Natural frequencies are compared to the results from the lumped-parameter model. The modes are presented in the numerical studies in low-frequency and high-frequency bands. Distributions of modal kinetic and strain energies are studied.
Źródło:: Journal of Theoretical and Applied Mechanics; 2015, 53, 1; 125-138
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Control of squirrel-cage electric generators in a parallel intermediate DC circuit connection
Autorzy:: Kozak, M.
Gordon, R.
Bejger, A.
Powiązania:: https://bibliotekanauki.pl/articles/135529.pdf
Data publikacji:: 2016
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: back-to-back
DC link
power distribution
VSI
FOC
power machine
Opis:: The paper covers the theoretical background and tests of two asynchronous squirrel cage generators connected to voltage source inverters working in parallel. Inverters were connected in parallel by their intermediate direct current circuits by means of auctioneering diodes, and then to a DC power network. The real-time control algorithm of digital signal processor DSP and field-programmable gate array FPGA was used to achieve proper excitation of two different power machines, and to maintain high enough levels of direct current link voltage. Windings of both generators are fed by use of so-called machine side inverters. The asynchronous generator is a voltage source inverter controlled by a field-oriented control algorithm based on the current machine model. To prove robustness of the chosen algorithm, different types of load were applied while generators and inverters worked in parallel.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 17-22
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Rehabilitation of sick-listed LBP patients in occupational health with collaboration of the workplace
Autorzy:: Kokkonen, Valtteri
Lamminpää, Anne
Reijula, Kari
Russo, Fabrizio
Iavicoli, Sergio
Denaro, Vincenzo
Kuoppala, Jaana
Powiązania:: https://bibliotekanauki.pl/articles/28761977.pdf
Data publikacji:: 2024-03-05
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: low back pain
rehabilitation
intervention
workplace
return to work
sick leave
Opis:: The aim was to evaluate if rehabilitation procedures including occupational health (OH) and workplace participation increase return to work (RTW) rates among patients with subacute and chronic low back pain (LBP). A systematic review of randomized controlled trials was conducted using the PubMed and Cochrane databases. Main outcomes were RTW and days of sick leave. Interventions needed to be multidisciplinary including both OH and active workplace involvement in rehabilitation. Out of 1073 potentially eligible references, 8 met the inclusion criteria. Three studies had OH and 5 case managers involved in rehabilitation. Rehabilitation involving both OH and workplace improved RTW and decreased the number of sick leave days among LBP patients. Having case managers involved had no effect in RTW. In order to improve RTW, workplace visits and work ability meetings (WAMs) between OH and workplace are essential components in the rehabilitation process among patients with chronic LBP. Based on the study results, the authors suggest utilizing these co-operative interventions with workplaces in OH. High quality research investigating only the effect of WAMs in OH setting is needed in future.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2024, 37, 1; 3-17
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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