Dynamics of prestressed rotating anisotropic plates subject to transverse loads and heat sources, part II: Application to a specially orthotropic disk

The rotating disk has many engineering applications as in floppy, hard, com pact, laser, and recently optical disk drives. This paper (Part II) conside rs the application of a finite element method presented in a companion pape r (Part I) to the analysis of rotating disks. The critical speed of the dis k is obtained to validate the problem formulation and solution method. Dyna mic responses are obtained as parameterized by the rotating speed. Effects of the temperature distribution and material system are also observed. Ther mal effects are crucial in the analysis of rotating disks, since the variat ion of temperature can be significant. This is especially true for equipmen t in which a hear source is used as a means of recording or erasing data an d for equipment in which the amount of generated or transferred heat is sig nificant. The specially orthotropic material properties of a laminated disk can have a large effect on the overall dynamic behavior. (C) 2000 Academic Press.