International Journal For Multidisciplinary Research

E-ISSN: 2582-2160     Impact Factor: 9.24

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 7, Issue 4 (July-August 2025) Submit your research before last 3 days of August to publish your research paper in the issue of July-August.

Design and Structural Evaluation of a 6-DOF Robotic Arm

Author(s) Prof. Dr. Ismail Bogrekci, Prof. Dr. Pinar Demircioglu, Mr. Erberk Uyar
Country Turkey
Abstract This study lays out the design of a robotic arm with six degrees of freedom created to automate the battery swapping operation of unmanned aerial vehicles (UAVs) employed in agriculture. Because UAVs have limited flight capability, the batteries need to be changed frequently, affecting negatively the continuity and efficiency of operations. The robotic arm designed was 3D-modeled in SolidWorks and put through transient structural analyses in Ansys to determine its behavior in actual conditions.
A specially designed cycloidal gear system was incorporated in every joint of the robotic arm for high torque output, low backlash, and compactness. The robot's modular design makes it suitable for different UAV models and mission scenarios. The selection of materials was done considering strength, weight, and manufacturability, and the outer housing is made of aluminum A356, while internal parts are made of 1.8550 steel alloy. The gripper at the end-effector is pneumatically actuated and capable of handling battery modules of up to 12 kg safely.
Inverse kinematics solutions, dynamic simulations, and transient load analyses validated the structural stiffness, low displacement, and high precision of the robotic arm. The findings confirm the effectiveness of the system for field applications, and it is a feasible and novel approach to automated UAV battery replacement in agriculture.
Keywords Robotic Arm, Cycloidal Gear, UAV, Battery Replacement, Inverse Kinematics, Transient Analysis.
Field Engineering
Published In Volume 7, Issue 4, July-August 2025
Published On 2025-07-15
DOI https://doi.org/10.36948/ijfmr.2025.v07i04.51174
Short DOI https://doi.org/g9s9sr

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