Skip to main content
padlock icon - secure page this page is secure

Sound intensity transfer path analysis and its application to analyze the acoustics in vehicle interior

Buy Article:

$17.00 + tax (Refund Policy)

A new technology based on conventional transfer path analysis (TPA) called sound intensity TPA (SITPA) is proposed and applied to analyze the acoustic field in a vehicle interior excited by a pair of front speakers. First, we introduce an analogy of a mass-spring-damper system for our intuitive understanding of sound intensity. On the basis of the analogy, we determined that the active and reactive components of sound intensity represent energy transmission and storage in the acoustic field, respectively. Next, formulation of SITPA, which extends the capability of conventional TPA, is introduced and demonstrates how SITPA expresses the sound intensity at the receiver by using the sum of partial sound intensities transferred from multiple sound sources. Application of SITPA shows that the active and reactive components of partial sound intensities generated by the interference of front-left and front-right speakers can be changed by modifying not only acoustic transfer characteristics of the vehicle interior but also phase-lag of input signals for speakers. The effect of modifying the phase-lag on the sound intensity is experimentally examined under the scheme for minimizing and maximizing reactive sound intensity.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: 23.9; 72.3

Document Type: Research Article

Affiliations: Hitachi, Ltd., Research & Development Group

Publication date: May 1, 2018

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more