Publication detail
Complex Evaluation of Transmission NVH Parameters
PROKOP, A. ZUBÍK, M. ŘEHÁK, K. NOVOTNÝ, P.
Czech title
Complex Evaluation of Transmission NVH Parameters
English title
Complex Evaluation of Transmission NVH Parameters
Type
conference paper
Language
en
Original abstract
Abstract: Automotive industry belongs to one of the fastest developing branches where the emphasis is put not only on engine power, but also on a driving comfort, environment, and lifetime of each component. Regarding the increasing number of vehicles, wide variety of restrictions determining permissible values had to be created. This means that the process of development is becoming more multidisciplinary. Therefore, the former approach, implementing experience, had to be replaced by complex tasks of simulation and also experimental background. This paper deals with a field of transmission noise and vibration. A method to evaluate noise and vibration is designed, assembled and tested on the experimental single-stage gearbox for the purpose of development and improvement. At first, the natural frequencies are evaluated by experiment and finite element method. To gain properly stated input excitation the experimental shaker was designed and constructed for the experimental purposes. After satisfactory correlation with simulation, the gearbox is completely assembled and rundown tests are evaluated. Rotation speed is controlled up to 3000 rpm with constant loading moment and the surface normal velocities and noise level are observed. Based on the input data gained from the finite element method and experiment, the multibody dynamics system is created. The results gained from the multibody dynamics system correspond with the experiment. These methods are afterwards applied to real heavy duty truck transmission system.
Czech abstract
Abstract: Automotive industry belongs to one of the fastest developing branches where the emphasis is put not only on engine power, but also on a driving comfort, environment, and lifetime of each component. Regarding the increasing number of vehicles, wide variety of restrictions determining permissible values had to be created. This means that the process of development is becoming more multidisciplinary. Therefore, the former approach, implementing experience, had to be replaced by complex tasks of simulation and also experimental background. This paper deals with a field of transmission noise and vibration. A method to evaluate noise and vibration is designed, assembled and tested on the experimental single-stage gearbox for the purpose of development and improvement. At first, the natural frequencies are evaluated by experiment and finite element method. To gain properly stated input excitation the experimental shaker was designed and constructed for the experimental purposes. After satisfactory correlation with simulation, the gearbox is completely assembled and rundown tests are evaluated. Rotation speed is controlled up to 3000 rpm with constant loading moment and the surface normal velocities and noise level are observed. Based on the input data gained from the finite element method and experiment, the multibody dynamics system is created. The results gained from the multibody dynamics system correspond with the experiment. These methods are afterwards applied to real heavy duty truck transmission system.
English abstract
Abstract: Automotive industry belongs to one of the fastest developing branches where the emphasis is put not only on engine power, but also on a driving comfort, environment, and lifetime of each component. Regarding the increasing number of vehicles, wide variety of restrictions determining permissible values had to be created. This means that the process of development is becoming more multidisciplinary. Therefore, the former approach, implementing experience, had to be replaced by complex tasks of simulation and also experimental background. This paper deals with a field of transmission noise and vibration. A method to evaluate noise and vibration is designed, assembled and tested on the experimental single-stage gearbox for the purpose of development and improvement. At first, the natural frequencies are evaluated by experiment and finite element method. To gain properly stated input excitation the experimental shaker was designed and constructed for the experimental purposes. After satisfactory correlation with simulation, the gearbox is completely assembled and rundown tests are evaluated. Rotation speed is controlled up to 3000 rpm with constant loading moment and the surface normal velocities and noise level are observed. Based on the input data gained from the finite element method and experiment, the multibody dynamics system is created. The results gained from the multibody dynamics system correspond with the experiment. These methods are afterwards applied to real heavy duty truck transmission system.
Keywords in Czech
NVH parameters, finite element method, experiment, transmission
Keywords in English
NVH parameters, finite element method, experiment, transmission
RIV year
2015
Released
22.10.2015
Publisher
Kaunas University of Technology
Location
Kaunas
ISSN
1822-296X
Book
Transport Means 2015
Pages from–to
563–566
Pages count
780
BIBTEX
@inproceedings{BUT117788,
author="Aleš {Prokop} and Martin {Zubík} and Kamil {Řehák} and Pavel {Novotný},
title="Complex Evaluation of Transmission NVH Parameters",
booktitle="Transport Means 2015",
year="2015",
month="October",
pages="563--566",
publisher="Kaunas University of Technology",
address="Kaunas",
issn="1822-296X"
}