Effect of the Composite Material of the Car's Bumper on its Fundamental Natural Frequency and Response As A Result of Car Vibration


Effect of vibration on the car's bumper was studied in this paper.Composite materials are used in manufacturing the car's bumper. The methods thatused in this investigation are Rayleigh's formula for lumped masses in addition tosuper position method and the mixture rule. By using these techniques it can befound the natural frequencies, mode shapes and deflection for the car's bumper.Different matrix material (resin), fibers and volume fraction are used in thisinvestigation. MATLAB program are built in this study. The results of thisprogram are compared with the results of the ANSYS 11 program. Thecomparisons show good agreement.