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Integrated Test and Evaluation for Improvement of Vehicle Road Noise

승용차의 도로면 발생 소음 개선을 위한 시험 및 평가 연구

  • 고강호 (국민대학교 자동차공학전문대학원) ;
  • 허승진 (국민대학교 자동차공학전문대학원) ;
  • 국형석 (국민대학교 자동차공학전문대학원)
  • Published : 2003.05.01

Abstract

Several tests are performed to evaluate road booming noise. Baseline test delivers the information of road noise characteristics. Coupling effect between structure and acoustics is obtained from the mode shapes and the natural frequencies by the modal test. Equivalent stiffness at joint areas between chassis and car-body system can be determined by the input point inertance test. Noise sensitivity of body mounting point of a chassis part can be obtained from the noise transfer function test with input point inertance test. Operational deflection shape makes us analyze the actual vibration modes of the chassis system under actual leading and find noise sources very easily. Finally, the transfer path analysis is used to Identify noise Paths through the chassis system. The objectives and the procedures of the tests are described in this Paper Also, the guideline for efficient road noise evaluation test can be found.

Keywords

References

  1. Hendrix, W. and Vandenbroeck, D., 1993, "Suspension Analysis in View of Road Noise Optimization", SAE Paper No. 931343.
  2. Wyckaert, K. and Van der Auweraer, H., 1995. "Operational Analysis, Transfer Path Analysis, Modal Analysis : Tools to Understand Road Noise Problems in Cars." SAE Paper No. 951251.
  3. Perry Gu, P. and Juan. J., 1997. "Application of Noise Path Analysis Technique to Transient Excitation." SAE Paper No. 972034.
  4. 강태원, 임상규, 1998, “노면 가진에 의한 실내 소음 해석 방법,” 한국소음진동공학회논문집, 제 8권, 제 6호, pp. 1158-1164.
  5. Akiho, M., 1995, "Virtual Reference Signals for Active Road Noise Cancellation in a Vehicle Cabin," SAE Paper No. 951325.

Cited by

  1. A Study on Road Noise Extraction Methods for Listening vol.26, pp.7, 2016, https://doi.org/10.5050/KSNVE.2016.26.7.844