Evaluation of Vibro-Acoustics Comfort Criterion Inside a Vehicle Manifested from Interaction of Tire/Road
[1]
Shawki Abdelhady Abouel-seoud, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
[2]
Mohamed Watany Mohamed Elsid, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
[3]
Nagwa Ahmed Abdel-halim, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
[4]
Eid Saber Mohamed, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
[5]
Ahmed Sultan Abdallah, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
In a dynamic system, transmission of sound and vibration depend on frequency, direction of the input motion and characteristics of the output. It is imperative that automotive manufacturers invest a lot of effort and money to improve and enhance vibro-acoustics performance of their products. This paper outlines a generalized approach estimating passenger comfort response to combined noise and vibration environments typical of existing and future surface transportation vehicles. This approach is used to evaluate vehicle comfort criterion according to most frequently used vibration and sound quality criteria. As a result, researchers of different fields of automotive vibration and acoustics investigations can use this criterion according to the type of road (international road roughness) without any need to perform time-consuming jury tests. This effort was prompted by the need to: (1) specify acceptable levels of vibration environments both with and without interior noise; (2) understand the nature of the relationship between the levels of noise and/or vibration and passenger comfort; (3) determine the tradeoffs between comfort and level of noise and/or vibration; and (4) provide a format for developing and applying meaningful combined noise and vibration criteria.
Vibro-Acoustic, Sound Quality, Comfort Criterion, Kurtosis, Acoustic Cavity, Vehicle Body Surface
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