Testing Research and Modal Analysis of Light Truck Frame

This paper created a light truck frame finite element model to calculate the frame of the vibration mode and get modal parameters.And tested the modal frame,through the test data collection,processing and analysis,get the ten bands modal frequencies and mode shapes.By comparison,both methods found the modal parameters obtained more consistent,which show that established finite element model can reflect the good original structure vibration characteristics.Through the modal analysis to determine the reliability of the frame structure for improved frame structure provides a theoretical basis.