Project Manager Control

CHIMPALTHRADI R.. ASHOKKUMAR

CHIMPALTHRADI R ASHOKKUMAR

Tel: 080-******** ~ E-Mail: *************@*****.***

Seeking assignments in Flight Vehicle Modelling, Controls and Simulation;

Citizen of USA and Overseas Citizen of India

National Academy of Science Senior Post Doctoral Research Fellow, Eglin AFB, FL, USA

CAREER PRÉCIS

Ü A result oriented professional with nearly 15 years’ experience including expertise in:

- Launch Vehicle Dynamics and Controls - Kalman Filter - Robust Stability Analysis

- Munitions Formation Control - Control Algorithms - Control Law Development

- Control Structure Interactions - Multivariable Gain Margins in Reconfigurable Control

Ü Currently associated with National Aerospace Laboratories, Bangalore, India in the role of Pro-

Scientist at Flight Mechanics and Controls Division.

Ü An Out-of-the-Box thinker with a flair for identifying & adopting emerging trends in Flight Vehicle Modelling,

Control and Simulation to achieve terrain and trajectory following guidance schemes.

Ü Worked extensively on multivariable gain margins for parameter varying systems.

Ü A good strategist with proficiency in streamlining control gain computations for inner and outer loop control

structures of flight vehicles.

Ü Expert in launch vehicle control-structure interactions with continuous and discrete time controller validation

for unmodeled dynamics such as flexure, slosh and servo engine actuator.

Ü Adeptness in providing guidance and leadership in parametric stability margins in accordance with

reconfigurable control with sensor actuator networking, flight envelope protection design, etc.

Ü Exceptional Kalman Filter designer.

EMPLOYMENT CHRONICLE

Feb’09/ Present Flight Mechanics & Controls Division, National Aerospace Lab, Bangalore

As Pro-Scientist: In charge of estimating dimensional and non-dimensional aerodynamic and control

derivatives for India’s Regional Transport Aircraft using DAR Corporation’s Advanced Aircraft Analysis software.

Also working on 6 DOF simulation for terrain following control schemes.

Jul’04–Feb’09 Private Research

As Researcher: M ultivariable gain margin, phase margin, mu, real parametric stability analysis, trajectory

tracking in nonlinear systems, etc., are all matrix singularity problems. Therefore, a computational tool to

determine singularities in uncertain matrix polytopes has been successfully demonstrated.

Jul’02–Jul’04 NRC Senior Post Doctoral Research Associate, Eglin AFB, FL

As Researcher: Introduced virtual interconnection topology for formation control of spatially distributed

systems. It has been shown that latent delay in communication pattern can convert a dynamically infeasible

system into a dynamically feasible system.

Sep’00–Jul’01 University of Miami, Coral Gables, Miami, FL

As Visiting Assistant Professor: Taught mechanical and aeronautical engineering courses and conducted

research on reconfigurable control for health monitoring and repairing using sensor and actuator networking.

Aug’94–Sep’00 North Carolina Agricultural and Technical State Uni., Greensboro, NC

As Research Associate: Taught electrical engineering courses and conducted research on mitigating the

effects of turbulence during flight cruise using lidar, a forward looking sensor.

Aug’90–Aug’94 Ohio State University, Columbus, OH

As Graduate Research Associate : Developed extensive Matlab utility files for composite matrix theory that

investigates real axis behavior of perturbed eigenvalues of a polytopic matrix.

Aug’86–Aug’90 Aeronautical Development Agency, Bangalore, INDIA

As Project Manager: Diagnosed Mirage 2000 pitch control structure for adapting it to India’s light combat

aircraft program.

Jul’84–Aug’86 Indian Institute of Science, Bangalore, INDIA

As Scientific Officer: Validated rigid body based continuous and discrete time controllers for India’s prithvi

rocket with unmodeled dynamics such as propellant slosh, flexure and engine actuator dynamics.

ACCOUNTABILITIES:

A proposal on turbulent mitigation was funded by NASA Dryden Flight Research Centre.

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In Prithvi, structural filters were augmented.

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In Prithvi, it is shown that computational time delay can phase stabilize unstably interacting bending modes.

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In Light Combat Aircraft, it is proved that inner loop control structure is a high gain feedback system.

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In Light Combat Aircraft, inner and outer loops were integrated for high angle of attack simulation.

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In multi vehicle formation, it is shown that latent delay converts dynamically infeasible formation into

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dynamically feasible formation under state and input constraints.

SCHOLASTICS

Ph.D., Aeronautical & Astronautical Eng., Ohio State University, Columbus, OH, USA. CGPA 3.67/4.0.

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M.E., Aerospace Engineering, Indian Institute of Science, Bangalore, India. CGPA 6.2/8.0.

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B.Tech., Aeronautical Engineering, Anna University, Chennai, India. First Class.

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B.Sc., Mathematics, Physics and Statistics, Madras University, Chennai, India. First Class.

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REFERENCES

Available if need arises

OTHER SKILLS

Ü MS Office Tools : Word, Access, PowerPoint.

Ü Programming Languages : FORTRAN, Matlab/Simulink.

Ü Platforms : UNIX, Windows 98/XP.

PERSONAL DOSSIER

490, 19th Main Road, 4th ‘ T’ Block, Jayanagar, Bangalore–560041.

Address :

Nationality : U.S. Citizen and Overseas Citizen of India.

Work Permit : India, USA.

Languages : English, Kannada, Telugu, Tamil.

Interests : Reading books and listening to music.

Publications : 7 Journal papers, 11 Conference Papers, 4 Technical Reports

Contact this candidate