| Summary: | With the increasing implementation of 3D lattice structures within various fields of
engineering around the world. However, fatigue failure due to dynamic loads is ever
present and can be catastrophic to such structures. As such, vibration attenuation needs
to be considered for such structures to withstand dynamic loads.
Hence, this project aims to explore the capabilities of external damping implementations
upon Lattice Structures (3D Kagome) and to propose a damper design suitable for
general lattice structures through the analysis of elastomer, spring and pneumatic, mount
types. The research utilises the framework of: (1) Select Lattice Structure to study, (2)
Select and compare damper mounting types, (3) Create Proposed Design, (4)
Exploration of Design via Simulation, which will take place before the eventual
production of the part. An experiment is conducted on the damper materials using a
90mm by 90mm by 30mm PLA structure to determine the frequencies of damped and
undamped, before using the Transmissibility equation to find the lowest ratio. It showed
that Spring followed by Elastomers, had the lowest transmissibility. Then, a prototype is
generated, and the design is tested in a simulation. From there, transmissibility of the
final design was calculated and is proven to be lower than the others, making it the most
ideal for implementation on the 3D Kagome lattice structure.
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