Abstract
The research presented in this paper is concerned with the development of a linear composite theory, along with a semi-analytica l finite-element analysis for horizontally layered, reinforced, elastomeric bearings of revolution subjected to nonaxisymmetr ic loads. A multiscale representation is used in the development of the composite theory to model both small and large-scale stress and deformation phenomena. In addition to the usual displacement variables, special field variables are introduced to model edge effect phenomena. In contrast to some previous work, only continuity of the field variables (but not their derivatives) is required for the resulting finite-element analysis, thus permitting use of simple bilinear four-node isoparametric elements. Several numerical examples are presented and compared to discrete and previously obtained composite analyses. A section is devoted to the comparison of the present results to available design curves for elastomeric bearings used in helicopter systems. For the purpose of illustrating the general capabilities of the theory and analysis, a parameter study for a class of horizontal layered elastomeric bearings with a conical central hole is performed; the effects of varying the angle between the inner surface of the bearing and the vertical axis are evaluated under different loading conditions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
