Research

Research

Drilling Automation and Control of Drillstring Dynamics Jan.’20 – Present

Bit wear Prediction and Drilling Optimization Sept.’2020 – Present

Pole Placement and Reduced-Order Modelling for Time-Delayed Systems (TDS) using Galerkin Approximations – Doctoral Thesis Jan.’14 – Dec.’19

• Developed a novel mathematical formulation to study the dynamics and stability characteristics of TDS

• Designed a new model-order reduction technique for TDS

• Increased the delay margin of the system with optimization-based and hybrid stabilization schemes

• Experimentally validated the proposed theories using a rotary inverted pendulum, an inverted pendulum on a cart and a 3D-hovercraft

• Applied the proposed schemes for studying human balance and supply chain models

Team Lead, IIT Hyderabad Student Satellite Project April’14 – Sept.’15

• Lead a feasibility study to demonstrate novel communications and optical imaging systems for small satellites

• The team consisted 70 students across different majors from graduate and undergraduate levels

• Divided the mission into sub-constellations of 4 satellites each with a primary goal to achieve cost optimization

• Computationally validated control-system configurations especially for formation-flying in MATLAB

• Supervised feasibility study for diffraction based optical system design

Development of µ – Vibration Isolator for Optical Payloads - Master’s Thesis Sept.’10 – May’12

• Developed a vibration Isolator for attenuating vibrations in the frequency range of 10 – 200 Hz (often referred to as μ–vibrations) for a target payload weight of 15 – 30 kg

• Onboard vibrations affect the quality of the images obtained from optical payloads; therefore, it is imperative to isolate the payload from the onboard disturbances that come from various sources such as Reaction Wheel Assembly (RWA), Cryo–Cooler, etc

• The developed vibration isolator was a passive vibration isolator consisting of viscoelastic materials

Feasibility Study for a Nano–Satellite Constellation for Optical Stellar Interferometry Sept.’10 – March’11

Team Lead, Structural and Thermal Analysis for STUDSAT (Cube Sat) Nov.’07 – June’09

• Founding team member of STUDSAT and team lead for designing the structures and mechanisms sub-system

• STUDSAT – the first Indian pico-satellite (< 1 kg) launched in July 2010 was a venture of amateur undergraduate students

• Performed static and dynamic analysis of the structure; and engineered the basic layout of various sub-systems

• Validated the structural design from heat transfer point of view by performing static and transient thermal analysis so that all the components of STUDSAT are within the temperature limits

Internships

Intern, IDEA Cellular Private Limited Sept.'12 – May'13

• Devised a strategy to increase the Revenue Management Share (RMS) from the Value Added Services (VAS) from existing 12% to the 30% in a time period of 5 years

• Analyzed the the VAS data and predicted the future growth for the RMS from VAS with appropriate recommendations for the company.

Research Scholar, Research Centre Imarat (RCI) Oct.’09 – Aug’10

• Developed a comprehensive system to provide the physical parameters (weight, the center of gravity & mass moment of inertia) of an airborne object with an accuracy of 20 microns

• Experimentally validated the design of critical components of the system that support and absorb the dynamics of loads acting on the entire system

Astronomy and Astrophysics Intern, Tata Institute of Fundamental Research, Mumbai May’08 – July’08

• Characterized the TIFR – Near Infrared Camera, mounted on the telescope at Mt. Hanley, Ladakh

• Obtained dark current of the CCD sensor and readout noise of the electronic circuit

• Performed image processing using Interactive Data Language (IDL)

• Analyzed the images obtained from using different filters attached to the sensor

• Using the data collected, established the relationship of dark current and readout noise with the image