Car Soundproof Improvement through an SMA Adaptive System
The work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific regimes (cruise), without interfering with the conventional opening and closing operations. The idea addresses the necessity of increasing seal effectiveness, jeopardized by aer...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-12-01
|
| Series: | Actuators |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-0825/7/4/88 |
| _version_ | 1818060253680369664 |
|---|---|
| author | Salvatore Ameduri Angela Brindisi Monica Ciminello Antonio Concilio Vincenzo Quaranta Marco Brandizzi |
| author_facet | Salvatore Ameduri Angela Brindisi Monica Ciminello Antonio Concilio Vincenzo Quaranta Marco Brandizzi |
| author_sort | Salvatore Ameduri |
| collection | DOAJ |
| description | The work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific regimes (cruise), without interfering with the conventional opening and closing operations. The idea addresses the necessity of increasing seal effectiveness, jeopardized by aerodynamic actions that strengthen as the speed increases, generating a growing pressure difference between the internal and the external field in the direction of opening the door, and then deteriorating the acoustic insulation. An original expansion mechanism driven by a shape memory alloy (SMA) wire was integrated within the seal cavity to reduce that effect. The smart material was activated (heated) by using the Joule effect; its compactness contributed to the realization of a highly-integrable and modular system (expanding cells). In this paper, the system development process is described together with the verification and validation activity, aimed at proving the functionality of the realized device. Starting from industrial requirements, a suitable solution was identified by considering the basic phenomenon principle and the allowable design parameters. The envisaged system was designed and its executive digital mock-up (CAD, computer-aided design) was released. Prototyping and laboratory tests showed the reliability of the developed numerical models and validated the associated predictions. Finally, the system was integrated within the reference car. To demonstrate the insulation effect, the experimental campaign was carried out in an anechoic room, achieving significant results on the concept value. |
| first_indexed | 2024-12-10T13:29:29Z |
| format | Article |
| id | doaj.art-bb3aa98c499c4109bb276770d2c4b143 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-12-10T13:29:29Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-bb3aa98c499c4109bb276770d2c4b1432022-12-22T01:47:03ZengMDPI AGActuators2076-08252018-12-01748810.3390/act7040088act7040088Car Soundproof Improvement through an SMA Adaptive SystemSalvatore Ameduri0Angela Brindisi1Monica Ciminello2Antonio Concilio3Vincenzo Quaranta4Marco Brandizzi5Adaptive Structures Division, CIRA—Centro Italiano Ricerche Aerospaziali, 81043 Capua, ItalyAdaptive Structures Division, CIRA—Centro Italiano Ricerche Aerospaziali, 81043 Capua, ItalyAdaptive Structures Division, CIRA—Centro Italiano Ricerche Aerospaziali, 81043 Capua, ItalyAdaptive Structures Division, CIRA—Centro Italiano Ricerche Aerospaziali, 81043 Capua, ItalyAdaptive Structures Division, CIRA—Centro Italiano Ricerche Aerospaziali, 81043 Capua, ItalyGlobal Innovation, Centro Ricerche Fiat, 80038 Pomigliano d’Arco (NA), ItalyThe work at hand focuses on an adaptive system aimed at improving the soundproof performance of car door seals at specific regimes (cruise), without interfering with the conventional opening and closing operations. The idea addresses the necessity of increasing seal effectiveness, jeopardized by aerodynamic actions that strengthen as the speed increases, generating a growing pressure difference between the internal and the external field in the direction of opening the door, and then deteriorating the acoustic insulation. An original expansion mechanism driven by a shape memory alloy (SMA) wire was integrated within the seal cavity to reduce that effect. The smart material was activated (heated) by using the Joule effect; its compactness contributed to the realization of a highly-integrable and modular system (expanding cells). In this paper, the system development process is described together with the verification and validation activity, aimed at proving the functionality of the realized device. Starting from industrial requirements, a suitable solution was identified by considering the basic phenomenon principle and the allowable design parameters. The envisaged system was designed and its executive digital mock-up (CAD, computer-aided design) was released. Prototyping and laboratory tests showed the reliability of the developed numerical models and validated the associated predictions. Finally, the system was integrated within the reference car. To demonstrate the insulation effect, the experimental campaign was carried out in an anechoic room, achieving significant results on the concept value.https://www.mdpi.com/2076-0825/7/4/88SMA actuatorssmart insulation systemssoundproofing devicesactive sealsexpanding cells |
| spellingShingle | Salvatore Ameduri Angela Brindisi Monica Ciminello Antonio Concilio Vincenzo Quaranta Marco Brandizzi Car Soundproof Improvement through an SMA Adaptive System Actuators SMA actuators smart insulation systems soundproofing devices active seals expanding cells |
| title | Car Soundproof Improvement through an SMA Adaptive System |
| title_full | Car Soundproof Improvement through an SMA Adaptive System |
| title_fullStr | Car Soundproof Improvement through an SMA Adaptive System |
| title_full_unstemmed | Car Soundproof Improvement through an SMA Adaptive System |
| title_short | Car Soundproof Improvement through an SMA Adaptive System |
| title_sort | car soundproof improvement through an sma adaptive system |
| topic | SMA actuators smart insulation systems soundproofing devices active seals expanding cells |
| url | https://www.mdpi.com/2076-0825/7/4/88 |
| work_keys_str_mv | AT salvatoreameduri carsoundproofimprovementthroughansmaadaptivesystem AT angelabrindisi carsoundproofimprovementthroughansmaadaptivesystem AT monicaciminello carsoundproofimprovementthroughansmaadaptivesystem AT antonioconcilio carsoundproofimprovementthroughansmaadaptivesystem AT vincenzoquaranta carsoundproofimprovementthroughansmaadaptivesystem AT marcobrandizzi carsoundproofimprovementthroughansmaadaptivesystem |