星空传媒

Building next generation orbit propagation and analysis capabilities (Competitive Internal Research Award (CIRA) 2022, PI: E. Fantino - Aerospace Engineering, Co-I: Hadi Susanto)

The project  seeks to expand the trajectory analysis software of the Astrodynamics group of Khalifa University with capabilities for: 

1) Improved capabilities for propagation of mean orbital elements in N-body systems. Mean elements are ideal tools for designing station-keeping strategies and propagating trajectories into the far future. The differential equations governing their evolution are obtained by analytical averaging of the effect of perturbing forces over one orbit. This task focuses in modeling the long-term evolution of the orbits of spacecraft and planetary systems, including the complex interactions between non-spherical shapes of celestial objects.

2) Application of Lagrangian descriptors to the identification of dynamic structures in systems containing a spacecraft and several celestial bodies. These structures create low-energy pathways enabling efficient interplanetary and interlunar transfers. Lagrangian descriptors promise improved robustness, versatility and efficiency compared with the techniques in current use.

Machine learning for dynamical systems analysis (Faculty Start-up Grant (FSU) 2021, PI: H. Susanto)

Numerical computations will become necessary to analyze complex mathematical models, such as those in higher dimensions, and dissect their dynamics and characteristics. Nonetheless, even with the current computing power and performance, it is easily said than done due to the so-called ‘curse of dimensionality’, i.e., adding extra spatial dimensions in mathematical models will make the computational cost for solving them increase exponentially. The same curse is also  present in Data Science that involve learning a "state-of-nature" from a finite number of data samples in a high-dimensional feature space. However, highly scalable solutions to such problems have been provided successfully by Machine Learning algorithms, such as deep neural networks. This project aims at employing and developing novel Machine Learning algorithms to provide solutions to the curse of dimensionality in the analysis of higher dimensional dynamical systems, particularly in the area of nonlinear waves.

Design, Fabrication, and Analysis of Origami-based Metamaterials (Research & Innovation Grant - Students (RIG-S) 2023, PI: Tae Yeon Kim - Civil Infrastructure and Environmental Engineering, Co-I: Wesley Cantwell, Hadi Susanto, Jinkyu Yang)

This research is to design and fabricate novel 3D origami-based metamaterials that can be foldable yet stiff, lightweight, and tunable for specific engineering applications. The proposed origami structures can be highly useful for deployable structures (e.g., solar arrays and radiators, disaster relief structures, and biomedical devices). Furthermore, they can form and support unique nonlinear waves under impact conditions that can be used for impact mitigation. This goal will be achieved by combining experimental, analytical, and computational work and conducted by the following steps: 1) analysis of creative origami unit cells via analytical and numerical studies; 2) design and fabrication of the origami-based metamaterials in high dimensions; 3) experimental tests for the validation of their specific features, specifically, efficient folding/unfolding and superb impact mitigation. This project will directly address the KU Research agenda and priorities, such as advanced materials and manufacturing and space, in association with the Abu Dhabi 2030 plan.

DUSTnBLOOM: Algal Bloom and Nutrient and Dust Deposition Effects Under Climate Change in the Arabian Gulf (Research & Innovation Grant - Students (RIG-S) 2024, PI: H. Susanto, Co-I: Maryam R. Al Shehhi - Civil Infrastructure and Environmental Engineering)

This research aims to study phytoplankton blooms under climate change in the Arabian Gulf and develop mathematical models that integrate ecological processes of algal population dynamics, considering nutrient and dust deposition from agriculture and urban runoff and analysis of advanced satellite data tailored to the unique characteristics of the Arabian Gulf waters. Algal blooms harm human health and ecosystems. Their exact causes are unknown as they originate far out at sea and involve the intricate interplay of ecological processes. They also have unpredictable patterns despite advancements in ecosystem forecasting. The proposed project is important for safeguarding human health, protecting ecosystems, and maintaining sustainable coastal communities in the UAE. This project will address the KU Research priorities, notably the Sustainable Secure Society under the Environment & Planetary Sciences, associated with the Abu Dhabi 2030 plan. It is also connected to Healthy Longevity.