The design and structural analysis of robotic arms has become a core element for advancing automation, manufacturing, medical processes, and space operations. This study offers a holistic prescription for designing a robotic arm along with material selection and mechanical analysis with the intention of developing a robotic arm for industrial applications as outlined in this study. The core message of the study was to identify mechanical designs with full mechanical performance while maximizing costs, loads, and function. The design incorporated degrees of freedom to mimic human-like dexterity in a pick and place operation and CAD modeling was used to make a complete 3D prototype proposal of the robotic arm. Structural analysis was done using a Finite Element Analysis (FEA) approach to evaluate stress, strain, and safety factors based on specified loading conditions. The material properties evaluated comprise of density, tensile strength, and heat resistant qualities for durability and robustness. The study illustrated the utmost stress areas for maximum stress and suggests modifications for improved levels of mechanical efficiency and reduced weight. Furthermore, the study optimized actuator choices and joint configurations to reduce energy consumption and improve control precision. This study will increase the design knowledge for a high strength and light weight robotic system; and provide pathways for effective merging of sensor and feedback control systems in advancement. Keywords: Robotic arm, structural analysis, finite element analysis, mechanical design, CAD modeling, automation, actuator optimization, material selection, industrial robotics.
Patil et al. (Thu,) studied this question.