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김병삼(T.K. Lee),이태근(B.S. Kim),홍동표(D.P. Hong),지창헌(C.H. Chi) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_1
A theoretical model has been prepared, which describes the noise generated by tire/road interaction for the tire structure-borne sound analysis. The model begins with a set of thin shell equations describing the motion of the belt of a radial ply tire, as drived by Bohm("mechanisms of the belted tire", lngeniur- Archiv, XXXV, 1966). Structural quantities required for these equations are derived from material properties of the tire. The rolling shape of a tire is computed from the steady-state limit of these equations. Vibrational response of the tire is treated by the full dependent shell equations. The force input at the tire/road interface is calculated on the basis of tread geometry and distribution of contact patch pressure. Radiation of noise is calculated by a Kirchhoff- Helmholtz integral theorem.<br/> <br/>
지창헌,송윤섭 원광대학교 생산 및 자동화기술연구소 1995 생산.자동화기술연구소논문집 : 원광대 Vol.- No.2
An Energy Flow Method for the analytical study of vehicle oscillatory modes is proposed. This new method is based upon calculating activation energy of the system. First, the Energy Flow Method is formulated in terms of Eigen Vector. Then it is proved that this method is applicable to the analyses of motorcycle wobble mode and of shimmy mode of 4-wheeled vehicle, This method is also applied to the weave mode of motorcycle and to a coupled oscillatory mode of 4-wheeled vehicle.