The focus of my research lies at the intersection of mechanics, machine learning and numerical modeling. My overarching research involves modeling of mechanics and fluids in a vast array of settings as well as applying machine learning algorithms to mechanical sensing of actuators.
Development of a Picture-less Sensing Soft Robotic Actuator Using Generative Parametric Machine Learning Classifiers
(Prof. Katia Bertoldi, Harvard University)
We are working to develop a prototype autonomous soft robotic system with distributed embedded sensors that is able to perform object recognition via sensor data with machine learning algorithms. The system is to serve not only as a proof of concept but also as a principle for designing similar machinery when using additional types of embedded sensors. Our current prototype serves as a scale independent method for the development of similar soft sensing devices.
Structures of Beetles for Coloring and Stiffness
(Prof. Katia Bertoldi, Harvard University; Prof. Mathias Kolle, MIT)
Hard shell beetles can exhibit various colors and structural shapes depending on the environment in which they live in. Interestingly, their colors do not arise from the pigments on their skin, instead they come from the defragment of light through the alignment of pillar structures which is believed to be optimized to also give it strength. In this project, we optimize for the balance between structural coloring and stiffness to obtain a design principles for engineering applications.
Harnessing Design Principles from Glass Sponges
(Prof. Katia Bertoldi, Harvard University)
We are interested in understanding and harnessing the mechanical and hydrodynamic benefits introduced by the skeleton of deep-sea glass sponges. In particular, we focus on the Hexactinellid species called Euplectella aspergillum, which is commonly known as the "Venus' flower basket." This species exhibits an interesting and regular circular beam structure that is speculated to have both structural and hydrodynamic benefits. As a structure, our numerical model for the sponge shows that incorporating a two reinforcement beam structure makes the sponge more resistant buckling while not compromising stiffness. In a hydrodynamic sense, this species develops an interesting yet also regular helical ridge that allows for efficient dissipation of von Karman street. To understand this, we simulate the sponge geometry in a Lattice Boltzmann code analyzing the flow around the sponge, and compare the vortex shedding to that of methods found in engineering structures.
More information on this work can be found at git.fer.me/sponge-lattice