ABSTRACT
Let us now consider the response of shells to the excitation by moments. The formulation presented so far allows only treatment of cases where the excitation can be expressed in terms of pressure loadings q1q2, and q3. By use of the Dirac delta function, we were also able to treat line and point loads. However, in engineering practice, we often meet problems where the excitation is a moment. For instance, consider rotating machinery with an imbalance whose plane is parallel to the surface of the shell on which the machinery is mounted. Obviously, in addition to the in-plane forces, we have also a force couple. Any type of connection to a shell that is acted on by forces not transverse to the shell surface will produce a moment.
