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http://dx.doi.org/10.5050/KSNVE.2015.25.3.184

Experimental Evaluation of Direct Measurement for Excitation Forces Acting on the Hard-points of Suspension System to Predict Road-noise Performance  

Kang, Yeon June (School of Mech. and Aero. Eng., Seoul National University)
Kim, Heesoo (School of Mech. and Aero. Eng., Seoul National University)
Song, David P. (School of Mech. and Aero. Eng., Seoul National University)
Ih, Kang-Duck (NVH Research Lab. 1, Hyundai Motor Group)
Kim, HyoungGun (NVH Research Lab. 1, Hyundai Motor Group)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.3, 2015 , pp. 184-190 More about this Journal
Abstract
NVH engineering has become a hot issue due to radical technology changes and development in automotive industry since customers' expectations and needs for their vehicle is taken to a higher level. However, the source identification and quantification of the road noise within a vehicle is still not at the level where it needs to be to meet their expectations due to its' complex transfer path and difficulties in path optimization. The primary focus of this research is on direct force obtaining method at suspension hard points using suspension test rig. Directly obtained forces at suspension to body mounting points are critical and crucial for determining the effects of design changes of the suspension has on road noise performance. Direct force obtaining method has its limitation in sensor installation within an actual vehicle therefore, many has been indirectly calculating forces using full matrix inversion method or dynamic stiffness method. In this study, to circumvent this limitation, a suspension rig is used. Then, the suspension rig is verified through a comparative analysis of its dynamic behavior between the actual vehicle by cleat test on chassis dynamometer.
Keywords
Road Noise; Cleat; TPA(transfer path analysis); Suspension Rig Tester;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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