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A Study on the Vibration Characteristics of Light Truck Chassis Frame
Hyungjun Noh(노형준),Junbok Ko(고준복),Jinmoo Park(박진무) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study, the impact excitation experiment was performed to investigate the dynamic behavior of the frame using the actual chassis frame of 1ton commercial truck. Also the finite element analysis was accomplished using the commercial finite element package program, ABAQUS version 5.8. By comparing the experimental value and the analytical value, the validity of finite element model was verified. Also, the model experiment was carried out by manufacturing reduced size 1/2 of the actual model and unlike the proceeded experiment, the rubber band was used to create boundary condition and accomplished the vibration experiment. Also the change in vibration characteristic was observed which depended upon member's shape of the frame. The result showed that the different vibration characteristic was indicated when the side member and cross member were in shape of channel or box.
고준복(Junbok Ko),노형준(Hyungjun Noh),박진무(Jinmoo Park) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Recently, it is very important to reduce noise and vibration for improving ride comfort in a passenger car as it is being advanced. Natural frequency and mode shape of a tire for passenger car are very important factor in anticipating ride comfort and reducing noise & vibration. Natural frequency and mode shape are specially required for researching transmission of vibration from a tire to axle. In this study, thus, Modal Test and Finite element analysis are carried out for determining the vibration characteristics of a tire under the fixed axle and inflation pressure 32 psi. The FEM model is verified against simulations and experiments. Also the relationship between vibration characteristics and variable (variation of inflation pressure, depth of groove pattern, width of tread) is analyzed by using Finite element analysis.