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frequency analysis

“Deflecting elastic prism” and unidirectional localisation for waves in chiral elastic systems

Submitted by Giorgio Carta on
research
elastic wave propagation
chirality
elastic lattice
dispersion relation
frequency analysis

For the first time, a design of a “deflecting elastic prism” is proposed and implemented for waves in a chiral medium. A novel model of an elastic lattice connected to a non-uniform system of gyroscopic spinners is designed to create a unidirectional wave pattern, which can be diverted by modifying the arrangement of the spinners within the medium.

Frequency analysis with Contact constraint

Submitted by sidd04mech on
education
ABAQUS
friction
contact
frequency analysis

Hi,

 

I am trying to analysis a model in ABAQUS with a plate bolted to the Bracket top surface at 4 ends. I have to define contact between them (and also bolted at 4 ends) to get the Modal frequency. But When I searched for it, I got the answer that contact doesn't work with Modal analysis as contact is a nonliner problem and Modal Analysis only solves linear problem.

 

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