Event Prognosis, Asset Reliability and Maintenance

This research direction aims at developing advanced methodologies for event data using IoT sensor data. An "event" marks a random elicitation in the time domain.  In the context of machines, systems, and production equipment -- an event can be a warning, a failure, a maintenance activity, etc. Thus, one can easily find a system (or a fleet of systems) to experience a multitude of events during its operational lifetime.  Some of the broad research goals under this direction are:

1.  To predict the occurrence of a critical event in the presence of system heterogeneity, complex relationships, and unit censoring. We develop methods to share information between similar (yet different) units, learn the associations, and offer a real-time prognosis.

   • Related articles: [1] [2] [3]

2. To model the interrelated effect of a variety of maintenance events on a component's lifetime. We develop methods to infer the impact of shared maintenance actions across components and use them to create dynamic and cost-efficient maintenance plans.

   • Related articles: [1]

3. To utilize sensor monitoring signals as well as discrete data from critical components (such as, batteries, etc.) and offers dynamic maintenance plans.

   • Related articles: [1] [2] [3]

Domain-aware Data-driven Sequential Design

# Application 1:  3D bioprinting liver models 

In collaboration with: Dr. Srikanthan Ramesh, and Dr. Sundar Madihally.

We create methods to synergistically combine domain knowledge, (i.e., biology and physics) with real-world experiments to develop next-gen bioprinted liver tissue models.

• Read our review paper on "Advancing 3D bioprinting through Machine Learning and Artificial Intelligence" here.

# Application 2:  3D printing lighter and stronger materials 

In collaboration with: Dr. Srikanthan Ramesh, and` Dr. Hadi Noori.

We develop frameworks that cohesively bring together numerical, experimental, and data-driven methods for quickly fabricating stronger and lighter materials.