Comprehensive studies of vibroacoustic characteristics of transport and technological vehicles, appliances and facilities by the example of a motor vehicle-Reference-Cited by-同舟云学术

Comprehensive studies of vibroacoustic characteristics of transport and technological vehicles, appliances and facilities by the example of a motor vehicle

Published:2024-06-28 Issue:2 Volume: Page:43-65
ISSN:0135-3152
Container-title:Trudy NAMI
language:
Short-container-title:Trudy NAMI

Author:

Rakhmatov R. I.¹,Likeev A. P.¹

Affiliation:

1. Federal State Unitary Enterprise “Central Scientific Research Automobile and Automotive Engines Institute” (FSUE “NAMI”)

Abstract

Introduction (problem statement and relevance). The article shows experimental studies of vehicle vibroacoustic (NVH) characteristics focused on identification of oscillation sources and their contribution to noise and vibration measured in the reference points within the vehicle, as well as analyzes the oscillation propagation paths.The purpose of the study is to develop recommendations for improvement of vibroacoustic characteristics of transport and technological vehicles, appliances and facilities by the example of a vehicle based on studies of oscillation sources and their contribution to noise and vibration measured in the reference points within the vehicle, and oscillation propagation paths.Methodology and research methods. Vehicle vibroacoustic characteristics study. Determination of oscillation sources and their contribution to noise and vibration measured in the reference points inside the vehicle. Oscillation transfer paths study.Scientific novelty and results. The result of the studies is the recommendations developed to improve vehicle vibroacoustic characteristics and the developed algorithm allowing conducting comprehensive studies of vehicle vibroacoustic characteristics. The scientific novelty consists in comprehensive studies of vehicle vibroacoustic characteristics based on the studies of vehicle internal noise and vibrations in operating modes, overall noise and vibration level analysis, as well as studies of the transfer functions from the oscillation sources to the reference points, the paths of propagation of oscillations from the sources to the reference points and analysis of the developed modal chart of the vehicle.Practical significance. The vibroacoustic studies algorithm has been developed, according to which comprehensive studies of vibroacoustic characteristics of transport and technological vehicles, appliances and facilities are performed by the example of a motor vehicle. The research results can be used in scientific, research, educational institutions and manufacturing enterprises specializing in development and production of motor vehicles as well as in studies of vehicle vibroacoustic characteristics.

Publisher

FSUE Central Scientific Research Automobile and Automotive Engines Institute (FSUE NAMI)

Reference20 articles.

1. Kovalenko A.O., Baknin M.D., Kuzichkin O.R. [Algorithms for determining vehicle characteristics using vibroacoustic signals]. Algoritmy, metody i sistemy obrabotki dannykh, 2017, no. 2 (36)https://www.elibrary.ru/contents.asp?id=37130083&selid=37130093, pp. 78– 84. (In Russian)

2. Batizi V.M., Likhachev D.S. [Research on ways to optimize the design of a car body to improve the vibroacoustic characteristics of the vehicle]. Nauchno-tekhnicheskiy vestnik Bryanskogo gosudarstvennogo universiteta, 2020, no. 1, pp. 17–26. (In Russian)

3. Fesina M.I., Gorbunov S.V., Khort Yu.V. [Device for experimental evaluation of the static stiffness characteristics of the suspension of a vehicle power unit]. Patent RF, no. 52175 U1, 2005. (In Russian)

4. Astaykin A.I., Danilkin M.V., Dolgov V.I., Mashin I.G., Fomchenko V.N. [Mobile measuring system for determining the characteristics of acoustic channels of information leakage]. Trudy RFYaTs-VNIIEF, 2017, no. 22 2, pp. 222–227. (In Russian)

5. Osipenko K.V. [Development of an informationmeasuring complex for the analysis of vibroacoustic characteristics]. Nauchnoe obozrenie, 2016, no. 24, pp. 111– 115. (In Russian)