Dynamic characterization of hybrid composite material of rotor-bearing support system

Abstract

In this paper, the dynamic characterization of hybrid composite material of carbon-epoxy sandwiched by steel is presented from the rotor-bearing system perspective. The tensile and flexural strengths of the hybrid material are investigated followed by the detailed damping estimation using modal testing in cantilever mode and dynamic mechanical analysis in double cantilever mode. The experimental characterization results obtained in this work have fundamentally ascertained the mechanical and dynamic behavior of hybrid composite material for the intended application.

Keywords:

• Dynamic behavior
• dynamic characterization
• hybrid composite material
• material damping
• stiffness

Acknowledgments

The authors acknowledge the support from the experimental facility of the National Institute of Technology Karnataka, India funded by the Department of Science and Technology (DST): No. ECR/2016/001448. The authors acknowledge the support from SOLVE: The Virtual Lab @ NITK (Grant number: No. F.16-35/2009-DL, Ministry of Human Resources Development) and experimental facility provided by Centre for System Design (CSD): A Center of Excellence (http://csd.nitk.ac.in/) at National Institute of Technology Karnataka, India. The authors acknowledge the support from the experimental facility of Scimadzu AGX plus universal testing machine and Scanning Electron microscope provided at Department of Metallurgical and Materials Engineering, National Institute of Technology Karnataka, India.