Development of Input Loads for Road Noise Analysis

Lee, Ji-Un; Suh, Jin-Kwan; Jeong, Seung-Kab; Kandarpa, S.; Ahsan, Aqil; Wolf, Walter L.

doi:10.4271/2003-01-1608

Cited by 9 publications

(2 citation statements)

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“…Noise reduction measures hybrid cars is mainly divided into two categories: active noise reduction and passive noise reduction [5]. Active noise reduction including: (1) Improve the assembly process and quality; (2) Optimization of engine design; (3) Optimize the suspension system; (4) Optimized body structure.…”

Section: Nvh Control Methods For a Carmentioning

confidence: 99%

Research Progress on Vehicle NVH Technology

Yue

Zhou

2014

AMM

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Section: Nvh Control Methods For a Carmentioning

confidence: 99%

Research Progress on Vehicle NVH Technology

Yue

Zhou

2014

AMM

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“…Moreover, due to road conditions, lateral vibration occurring in the tire may transfer to the vehicle body through the suspension system causing body vibration and noise (Andersson et al, 2010; Jung et al, 2019; Winroth et al, 2017; Thilagam and Karthigaikumar, 2019). As the interaction between road, tire, and air has random characteristics, a reference signal cannot be easily achieved, and therefore, suitable methods to analyze random processes are required to control this type of noise in vehicle enclosures (e.g., see (Heatwole et al, 1993; Lee et al, 2003; Zafeiropoulos et al, 2018)). Wind noise becomes significant in high speeds (more than 100 km/h) due to high frequencies or turbulence generated in the holes and seals of the vehicle body.…”

Section: Introductionmentioning

confidence: 99%

Engine noise cancellation with optimum array of speakers inside vehicle enclosures

Porghoveh

Shirazi

Yildizdag

2022

Journal of Vibration and Control

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In this study, a computational optimization framework is presented to identify active noise control systems for vehicle enclosures. The adopted optimization approach determines optimum configuration of an array of secondary sound sources to suppress noises with low frequency (under 500 Hz) due to engine performance. The overall framework is conducted via a particle swarm optimization algorithm coupled with a modified modal interaction method developed to estimate sound field inside enclosures. The applicability of the proposed optimization approach has been examined with two enclosures of different size by considering 1-speaker and 2-speaker array options as a secondary sound source. The numerical investigation shows that, with the determined optimum configurations, a significant noise reduction may be obtained in vehicle enclosures.

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