论文部分内容阅读
Free vibration problems of lattice sandwich beams under several typical boundary conditions are investigated in the present paper.The lattice sandwich beam is transformed to an equivalent homogeneous three-layered sandwich beam.Unlike the traditional analytical model in which the rotation angles of the face sheets and the core are assumed the same,diferent rotation angles are considered in this paper to characterize the real response of sandwich beams.The analytical solutions of the natural frequencies for several typical boundary conditions are obtained.The efects of material properties and geometric parameters on the natural frequencies are also investigated.
Free vibration problems of lattice sandwich beams under several typical boundary conditions are investigated in the present paper. The lattice sandwich beam is transformed to an equivalent homogeneous three-layered sandwich beam. Unicon the traditional analytical model in which the rotation angles of the face sheets and the core are assumed the same, diferent rotation angles are considered in this paper to characterize the real response of sandwich beams.The analytical solutions of the natural frequencies for several typical boundary conditions are. The efects of material properties and geometric parameters on the natural frequencies are also investigated