Ngokwemibiko, abakwaNissan sebelungise ikhambi le-lightweight acoustic yemodeli yabo yango-2022.

Onjiniyela be-Acoustic banezinto ezihlukahlukene abangakhetha kuzo ukuze banciphise umsindo, ukudlidliza, nobukhali (NVH) ezimotweni. Kodwa-ke, ukukhetha kwabo kuvame ukuletha isisindo esingenakulinganiswa-esikhuphukayo. Phakathi nenqubo yokuthuthukiswa, imoto entsha ingakwazi ukwengeza kalula amakhilogremu angu-100 noma ngaphezulu ngenxa yokusebenzisa izinto ezidonsa ukushaqeka, imigoqo ekhanyayo nemunca umsindo, njengokumbondelana, igwebu elifakiwe, nengilazi engazwakali.

Esikhathini sokugcizelelwa kwe-lightweight, abacwaningi bezinto ezibonakalayo babheke phambili entuthukweni entsha ukuze bawine impi ye-NVH-weight. Okubizwa ngokuthi i-metamatadium kunikeza amathemba amahle ngenxa yezindleko zawo eziphansi uma kuqhathaniswa nezixazululo zendabuko ze-NVH.

I-metamaterial medium iyinhlanganisela yokwenziwa ye-macroscopic enesakhiwo sezinyosi esinezinhlangothi ezintathu. Ngenxa yokusebenzelana kwendawo phakathi kwezingxenye zeyunithi, inganikeza ukusebenza okuhle kakhulu ekucindezeleni noma ekuqondiseni kabusha amaza omsindo angafuneki.

Kusukela ngo-2008, abakwaNissan bebecwaninga kabanzi nge-metamatadium. Embukisweni we-Consumer Electronics ka-2020, abakwaNissan babonise le metamaterial okokuqala futhi bathi bazosebenzisa le nto ukunciphisa i-NVH emotweni entsha kagesi ka-Ariya ka-2022.

U-Susumu Miura, unjiniyela wezinto zokwakha eziphezulu wakwaNissan, uthe umsindo wokuvala umsindo wale metamaterial ungafinyelela ngokuphindwe kane kunezixazululo zendabuko. Njengesakhiwo esilula se-mesh esongwe ngefilimu yepulasitiki, le nto inganciphisa umsindo we-broadband ongu-500-1200Hz, ovame ukuvela emgwaqeni noma ohlelweni lokudlulisa. Ividiyo ibonisa ukuthi le metamaterial inganciphisa umsindo wangemuva ku-cockpit usuke ku-70dB uye ngaphansi kuka-60dB. Inkampani ithi uma kuqhathaniswa nezinhlelo ezikhona zokunciphisa i-NVH, izindleko zalolu lwazi ziphansi, noma okungenani zilingana ne. AbakwaNissan abakamdaluli umnikezeli wabo we-metamatadium.

Kuphrintwe kabusha kumphakathi wakwaGasgoo