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http://dx.doi.org/10.15207/JKCS.2022.13.04.307

Dynamic Analysis Design of Balance Shaft for Reducing Engine Inertia Force and Pitching Moment  

Kim, Byeong Jun (School of Mechanical Engineering, Inje University)
Boo, Kwang Suk (High Safety Vehicle Technology Research Center, Inje University)
Kim, Heung Seob (High Safety Vehicle Technology Research Center, Inje University)
Publication Information
Journal of the Korea Convergence Society / v.13, no.4, 2022 , pp. 307-313 More about this Journal
Abstract
The importance of engine vibration reduction is increasing as the vehicle interior noise becomes more serious due to higher output and lighten weight trends. Recently, the balance shaft attachment has been proposed as a representative method for the engine vibration reduction. The balance shaft is a device that cancels the vibrations generated in the reciprocating motion of the piston and the conrod by using an arbitrary eccentric mass, and can improve fuel efficiency and ride comfort at the same time. This paper proposes the unbalance amount and shape of the balance shaft to induce and offset the inertia force generated by the engine structure. The proposed two-shaped balance shaft was implemented as an ADAMS multi-body dynamics model, and the reduction of the inertial force in the actual behavior was confirmed through dynamic simulation.
Keywords
Balance Shaft Unit; 4-Cylinder Engine; Engine Inertia Force; Pitching Moment; Multi-body Dynamics;
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