IIT Kanpur researchers have demonstrated how with the use of a micro-structured hour-glass shaped metastructure in the lattice unit, one can get a wider variation of propagation and stop bands. The hour-glasses are developed in the Smart
Daily Current Affairs Quiz 2020
Key-Points
Inspiration of the lattice they developed has come from a two-headed drum called ‘Damaru’ or ‘Damaru’ which is used in ancient Hinduism and Tibetan Buddhism. It is said that Lod Shiva has produced a special sound through this musical instrument to create and regulate the universe.
In this application, IIT Kanpur researchers have shown the nature of stiffness of a vibrating medium could be altered drastically by controlling the lattice micro-structure from regular honeycomb to auxtetic honeycomb structure.
This has wide applications in the field of vibration isolation in high speed trains, stealth submarines and helicopter rotors.
This work is sponsored by a SPARC project of Ministry of Education.
