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Automotive suspension mat is installed at seat back frame. As the back part of passenger is aupported by suspension mat, it is prevented from the pressure concentration. The tired feeling at driving is minimized and the comfortable feeling is increased. In this study, vibration and fatigue are analyzed with plastic suspension mat modelled by 3 Dimension. By the analysis result, the natural frequency becomes 30 Hz with life of 10 6 cycle and safety factor of 1.6055. Development time and evaluation cost can be cut down by utilizing this analytical technique. Key Words : Suspension mat, Seat back frame, Vibration, Natural frequency, Fatigue         . *  : (jucho@kongju.ac.kr) 11 12 29  12 01 27  12 02 10 1.                     .         , , ,             ,          [1-3].         .         75%  ,  (ischial tuberosity)     .          [4-5].                ,              .      Back

Study on Vibration and Fatigue Analysis for Plastic Suspension Mat of Automotive Seat