Balance Weight-Saving with Performance of Acoustic Isolation Using Hybrid SEA Model Nissan Motor Company Limited

Format:

Conference/Event

Author/Creator:

Tanaka, Tanaka, author.

Contributor:

Enomoto, Toshio

Miyama, Yoshihito

Murakami, Hitoshi

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Recently, urgent needs have arisen for improving the fuel economy of passenger cars. To improve the fuel comsumption, it is necessary to develop a technology that can improve fuel efficiency and weight-saving. This paper describes the development of a soundproof package to balance weight-saving with performance of acoustic isolation used to reduce engine noise. First, we developed a hybrid statistical energy analysis (HSEA) model to evaluate the performance. Second, by using the HSEA model, we (1) analyzed the power flow and dominant path from noise source to interior cavity, (2) extracted efficient sections such as dash, dash penetration parts, and floor so as to improve the performance. Using the above process, we developed a soundproof package that improves the performance without increasing the weight. As a result, we balanced weight-saving with performance of acoustic isolation using the HSEA model

Notes:

Vendor supplied data

Publisher Number:

2012-01-0216

Access Restriction:

Restricted for use by site license