Generatoarele sincrone cu magneți permanenți sunt esențiale în buna funcționare a lanțului de conversie a energiei regenerabile -eoliene, de aceea sunt subliniate tipurile de geometrii constructive ale rotoarelor acestora. Lucrarea de față este un studiu bibliografic care vine în sprijinul producătorilor de top ai centralelor eoliene, pentru a ușura munca acestora de proiectare. Un rol important al GSMP este dat de magneți permanenți din pământuri rare care asigură o cantitate ridicată de energie magnetică necesară funcționari excelente a GSMP, ceea ce ii recomandă producătorilor de centrale eoliene.Cuvinte cheie: GSMP, magneti permanenti din pamanturi rare, conversie energetică.
Aceast studiu a luat în considerare patru alternative, adică materiale plastice din fibre de sticlă ranforsate, materiale ranforsate pe bază de fibre de sticlă, materiale ranforsate pe bază de fibre de carbon, Kevlar, aliaje de Al5754, Al6082, Al7075 pentru a determina cel mai bun material pentru palele unei turbini eoliene.Cuvinte cheie: composite materials, glass fiber reinforced plastics, reinforced materials based on fiberglass, carbon fiber reinforced materials.
This paper aims to highlight the advantages of using the ultrasonic welding process to join Cu alloy connector with Cu conductor wire, materials that are widely used in the automotive industry. Ultrasonic welding is a “cold”, ecological joining process, which does not produce noxious substances and is of great interest for subassembly manufacturers operating in today’s circular economy. In order to optimize the functional parameters for the connector and conductor wire in question, we use a sonotrode (active tool) made of tool steel, at the operating frequency of 20kHz, designed and executed in INCD ISIM Timișoara; experiments were undertaken to define the welding technology parameters for the materials subjected to the experimental investigation. The results were interpreted after the execution of NDT and destructive tests, namely: visual analysis, microscopic and macroscopic investigations; hardness tests.
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