To further investigate the vibration characteristics of the one-dimensional phononic crystal structure,the vibration characteristics of bending displacement of one-dimensional phononic crystal angle beam structure under elastic support condition are studied.By adopting the finite element analysis method,the models of L-shaped and T-shaped phononic crystal angle beam structures are established respectively,and the bending displacement response curves in the frequency range are plotted.At the same time,the influence of elastic support conditions,lattice length,composition ratio,connection angle,and elastic support stiffness on the bandgap of various types of phononic crystal angle beam structures is studied.The results show that the elastic support stiffness has a significant effect on the first bandgap of the phononic crystal angle beam structure.
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