ABSTRACT
One of the most dif˜cult tasks facing the author in writing this book was to select a simple but reasonably accurate approximation for handling ’uid loading on the structure. The purpose of this book is to give the reader complete Green’s functions, including a computer program. The author’s intention is to provide general types of solutions with varying boundary conditions. Thus, the following approximations have been used. If the reader desires more accurate approximations for the ’uid loading, many papers contain more accurate approximations; however, in all these cases, the computations and computer work are much more involved than the presentations given here, and the results only apply to speci˜c systems. Some of these references are given at the end of this chapter.1-12
For the beam (uniform or variable) and the plate (unstiffened or stiffened), it will be assumed that the ’uid loading can be represented as follows:
Fluid pressure = velocity × (impedance + structural damping factor)
where the impedance is that of a rectangular piston that has the same area as that in contact with the ’uid.
