Dr. R. Neethan


Lecturer (On Contract)
Department of Mechanical Engineering


BSc.Eng(Hons)(Jaffna),Ph.D. (NJIT & Rutgers, USA),
AMIE(SL)


Research interests : Biomechanics, Exoskeletons, Musculoskeletal Modeling


  neethan@eng.jfn.ac.lk
 +94-21-206-0160


Neethan Ratnakumar completed his Ph.D. in Biomedical Engineering in 2025 through the joint program of the New Jersey Institute of Technology (NJIT) and Rutgers University, NJ, USA. His doctoral research focused on engineering simulations and experimental control, combining predictive musculoskeletal modeling, real time testing, and device evaluation to design and optimize hip and hip-knee exoskeletons. By integrating computational approaches with hardware validation, his work aims to create assistive devices that are effective, ergonomic, and adaptable to human movement.
He received his B.Sc. Eng. in Mechanical and Process Engineering from the University of Jaffna in 2017 with First Class Honours, and was awarded the Prof. Mahalingam Gold Medal for best performance in the degree program. Following graduation, he served the University of Jaffna as a Temporary Instructor, Assistant Lecturer, and Lecturer (Prob) until mid 2019. His broader interests include subject specific optimization, adaptive control strategies, and the translation of predictive simulation insights into practical solutions for wearable systems that improve mobility, safety, and ergonomics across healthcare and occupational settings.

Overall: Engineering simulations and experimental control applied to human movement and wearable robotics, with emphasis on enhancing mobility, safety, and ergonomics.
In Detail: His research integrates musculoskeletal simulations, optimization methods, and real time control to study human movement and guide the design of lower limb exoskeletons. These approaches are used to investigate how assistive strategies influence gait mechanics, muscle activity, and energy expenditure, and to translate those insights into practical device control. Experimental testing and hardware validation are closely combined with simulation studies, ensuring that resulting systems are effective, ergonomic, and adaptable to different users. This work also extends to the broader development of assistive devices, bridging computational biomechanics with practical design considerations. The integrated approach lays the foundation for applications in rehabilitation, mobility support, and wearable technologies that enhance human performance across healthcare and occupational contexts.

2025 Sep – Present
University of Jaffna (UoJ)
Lecturer (Contract), Mechanical Engineering

2019 Sep – 2025 Aug
New Jersey Institute of Technology (NJIT)
Teaching/Research Assistant, BioDynamics Lab

2023 Apr – Jul
University of Jaffna (UoJ)
Visiting Lecturer
Electrical and Electronic Engineering, Introduction to Biomedical Engineering (EC9090)

2022 Sep – 2023 Jan
University of Jaffna (UoJ)
Visiting Lecturer, Mechanical Engineering, Robotics (MP9030)

2022 Mar – Sep
University of Jaffna (UoJ)
Visiting Lecturer
Electrical and Electronic Engineering, Introduction to Biomedical Engineering (EC9090)

2019 Jan – Jul
University of Jaffna (UoJ)
Lecturer (Prob), Mechanical Engineering

2018 Aug – Dec
University of Jaffna (UoJ)
Asst. Lecturer, Mechanical Engineering

2017 Oct – 2018 Aug
University of Jaffna (UoJ)
Temporary Instructor, Mechanical Engineering

2017 Mar – Jun
Indian Institute of Technology Gandhinagar (IITGN)
Research Intern, Rehabilitation Robotics Lab

2015 May – Jul
Brandix Apparel Limited
Intern Mechanical Engineer, Center of Innovation

2022
Best Paper Award
7th International Digital Human Modeling Symposium

2018
Prof. Mahalingam Memorial Gold Medal
Best Performance in Mechanical Engineering, University of Jaffna