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http://dx.doi.org/10.7776/ASK.2010.29.2.118

Optimum Design of Dynamic Vibration Absorber for Reducing Bending Vibrations of Two-Piece Vehicle Drive Line  

Lee, Sang-Beom (국민대학교 기계자동차공학부)
Yoo, Young-Sun (국민대학교 자동차공학전문대학원)
Publication Information
The Journal of the Acoustical Society of Korea / v.29, no.2, 2010 , pp. 118-124 More about this Journal
Abstract
In this paper, design parameters of dynamic vibration absorber, which is used to reduce bending vibrations of a vehicle drive line, is optimized. For obtaining the correct dynamic response characteristics, a flexible-body drive line is made by applying the flexibility data extracted from vibration analysis of propeller shafts to the drive line dynamic model. Inner tube mass, rubber stiffness and rubber damping coefficient of the dynamic vibration absorber are taken as design parameters for optimization. To minimize the vertical acceleration of the drive line, a second-order regression equation of the objective function is generated by performing the central composite experimental design with 3 factors, 2 levels and 15 test runs. And the design parameters of the dynamic vibration absorber are determined by using optimization program. The vehicle model with optimized dynamic vibration absorber reduces the vertical acceleration peak of the drive line by 17.1 % in compared with the initial model.
Keywords
Central Composite Design; DOE (design of experiments); Drive Line; Dynamic Vibration Absorber; Natural Frequency; Propeller Shaft;
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