ABSTRACT
In the previous chapters, the responses have been “static” as the load does not vary with time. In discrete form, the governing equations are KV = P, in which K is the global stiffness matrix of the structure, V is the displacement vector, and P is the loading vector. If the force changes with time, the relation KV = P does not adequately describe the movement of the structure. The inclusion of inertia forces changes the governing equations to MV¨+KV = P in which M is the mass matrix. An analysis leads to a dynamic response.
