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Analysis and Evaluation of Multilayer Shear Damped Viscoelastic Treatments for Launch Vehicle Applications

Start Date: Thursday, Mar 01,2007

School: School of Engineering

Project Incharge:Dr. K. I. Ramachandran
Project Incharge:Dr. K. I. Ramachandran, Dr. V. Sivakumar, Dr. Meera B Sasikumar,
Funded by:SRO, RESPOND Scheme
Analysis and Evaluation of Multilayer Shear Damped Viscoelastic Treatments for Launch Vehicle Applications

This research project identifies an appropriate combination of metal-elastomeric module configuration, using multi-layer shear damped viscoelastic approach, for mitigating the structure-bound vibrations on to the sensitive equipment. The composites are made of a metal (aluminium), and an elastomer (natural rubber and silicone rubber). Various combinations of metal (1mm to 5mm thickness) and elastomer (1mm to 5mm in thickness, and hardness and shore 40A to 80A) composites were prepared and evaluated. The most promising combination to achieve the desired set of properties was determined based on highest damping ratio, lowest specific weight, etc. The project also generated a series of monographs containing allthe technical data, material development (elastomers), mechanical and damped properties, modeling algorithms, etc.

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