FLEXURAL RESPONSE MATRIX FOR RIBBED PANELS

The formalism of the response of a ribbed membranelike panel that carr ies a single propagation type is recalled. The equation of motion is c ast in a scalar form. The formalism is then extended to a ribbed membr anelike panel that simultaneously carries two propagation types. The e quation of motion is cast in a matrix form of rank 2. The formalism of the flexural response of a ribbed plate also admits to a matrix form of rank 2 and is akin to the formalism of the panel that carries two p ropagation types. However, fundamental differences also exist between these two formalisms. These differences are discussed and examined.