Ranjan Jha

About

Ranjan Jha is a robotics researcher whose work has significantly advanced the understanding of parallel robotic manipulators, with a particular focus on workspace analysis, singularity identification, and kinematic modeling. His research consistently addresses fundamental challenges in parallel robot design, examining how structural parameters influence performance boundaries and operational efficiency across several robot families, including the 3-RPS, Delta-like, and 3-PPPS configurations. Jha's most cited contribution, "Workspace, Joint Space and Singularities of a Family of Delta-like Robots" (2018, 39 citations), exemplifies his rigorous analytical approach, employing sophisticated mathematical tools such as cylindrical algebraic decomposition to accurately characterize complex robotic workspaces. His investigations into assembly mode changing trajectories and design parameter influences have provided practical guidance for engineers seeking to optimize parallel manipulator configurations while avoiding singular configurations. Beyond theoretical analysis, Jha has demonstrated a commitment to translating research into real-world applications, most notably in medical robotics. His work on a 2-DOF spherical parallel mechanism tailored for otologic surgery (2020, 15 citations) highlights his interdisciplinary reach, bridging precision mechanical design with surgical robotics. His recent exploration of artificial intelligence in medical robotics further signals an evolving research trajectory toward intelligent, clinically applicable systems, making his portfolio increasingly relevant to both academic and applied robotics communities.

Research Focus

Key Achievements

Top Papers

1. 1
   Workspace, joint space and singularities of a family of delta-like robot

   39 citations · 2018
2. 2
   Workspace and Joint Space Analysis of the 3-RPS Parallel Robot

   22 citations · 2014
3. 3
   Workspace analysis in the design parameter space of a 2-DOF spherical parallel mechanism for a prescribed workspace: Application to the otologic surgery

   15 citations · 2020
4. 4
   Workspace and Singularity Analysis of a Delta like Family Robot

   12 citations · 2015
5. 5
   Non-singular Assembly Mode Changing Trajectories in the Workspace for the 3-RPS Parallel Robot

   11 citations · 2014
6. 6
   Kinematics and Workspace Analysis of a 3PPPS Parallel Robot With U-Shaped Base

   10 citations · 2017
7. 7
   A framework for the control of a parallel manipulator with several actuation modes

   9 citations · 2016
8. 8
   Influence of design parameters on the singularities and workspace of a 3-R<u>P</u>S parallel robot

   9 citations · 2018
9. 9
   The 3-PPPS Parallel Robot with U-Shape Base, a 6-DOF Parallel Robot with Simple Kinematics

   6 citations · 2018
10. 10
    Artificial intelligence (AI) in medical robotics

    4 citations · 2024

Key Collaborators

Contact & Links