Design of Driveline Test Bench for Noise and Vibration Harshness Improvement of Automotive Chassis Components System
The test bench for handling the vibration input and output in a driveline is presented in this contribution. In the experiment, the rear subframe and propeller shafts and axle were composed and mounted with rubber mounts each other as a role of vibration
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Abstract The test bench for handling the vibration input and output in a driveline is presented in this contribution. In the experiment, the rear subframe and propeller shafts and axle were composed and mounted with rubber mounts each other as a role of vibration absorbing function. For applying the vibration input instead of the torsional vibration effect of an engine, the shaker moved only the upper and lower side excitation was taken. In particular, the torsional vibration due to fluctuating forced vibration excitation across the joint in between driveline and rear subframe was carefully examined. Accordingly, as the joint response was checked from
K. J. Kim (&) Department of Automobile Engineering, Seojeong College University, 1049-56 Whahap-ro, Eunhyeon-myun, Gyeonggi-do, Yangjoo-si 482-777, Korea e-mail: [email protected] S.-T. Won Department of Product Design and Manufacturing Engineering, Seoul National University of Science and Technology, Seoul 139-743, Korea K. S. Kim B.-I. Choi Nano Mechanics Team, Korea Institute of Machinery and Materials, 1 Jang-dong, Yusung-gu, Taejon 305-343, Korea J.-H. Park Department of Mechatronics Engineering, Tongmyong University, Busan 608-711, Korea J. H. Lim J. K. Yoon Department of Mechanical and Automotive Engineering, Gachon University, Gyeonggi-do 461-701, Korea S. S. Kim School of Nano and Advanced Materials Engineering, Gyeongsang National University, Gyeongnam 660-701, Korea J.-W. Lee Research and Development Team, GS-ONE Company, Gyeonggi-do 413-851, Korea
A. Öchsner et al. (eds.), Design and Analysis of Materials and Engineering Structures, Advanced Structured Materials 32, DOI: 10.1007/978-3-642-32295-2_1, Ó Springer-Verlag Berlin Heidelberg 2013
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experiments, the FE-simulation (finite element simulation) using FRF (frequency response function) analysis was performed. All test results were signal processed and validated against numerical simulations. In the present study, a new test bench for measuring the vibration signal and simulating the vehicle chassis system is proposed. The modal value and the mode shape of all components were analyzed using the model to identify the important components affecting driveline noise and vibration. It can be concluded that the simplified test bench could be well established and be used for design guide and development of the vehicle chassis components for the improvement of NVH (noise and vibration harshness) problems.
1 Introduction The major excitation caused to a vehicle system is torque fluctuation by engine excitation. In recent years, the driveline vibration problems are emphasized due to increased engine power and overall increased NVH (noise and vibration harshness) refinement demand from customers. In order to detect driveline vibration issues in an early design stage for the improvement of NVH problems, it is necessary to test and simulate the vibration mode generated by the driveline detached from the vehicle, which is composed of the rear subframe and propeller shafts, axle and ru
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