Open AccessModeling and Fatigue Analysis of Robotic Arm with Lightweight Materials using FEA Technique
Author(s) -
Kishor Kumar
Publication year - 2021
Publication title -
international journal of modern trends in science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-3778
DOI - 10.46501/ijmtst0709008
Subject(s) - stiffness , modal analysis , robot , finite element method , robotic arm , stress (linguistics) , structural engineering , deformation (meteorology) , inertia , materials science , computer science , mechanical engineering , composite material , engineering , artificial intelligence , linguistics , philosophy , physics , classical mechanics
A robotic arm is a device that can perform comparable duties to a human arm and is programmable and versatile. It is utilized toexecute a variety of mechanical operations with great accuracy and efficiency for extremely repetitive jobs. Because robotic armsare employed for repetitive tasks, fatigue may occur as a result of continuous or continual loading; therefore, fatigue behavior iscrucial to investigate with the lightweight materials. In this research, a robotic arm was designed and evaluated utilizing aCAD-tool (solid works) with real-time boundary conditions and five different materials (aluminum alloy 7475, carbon fiber,kevlar29, E-glass fiber, and boron fiber). There was a static analysis, a modal analysis, and a fatigue analysis. Deformations, stress,frequency values, component life, and safety considerations were all detected in these evaluations for all models. It can deducefrom all of these data which materials have less deformation and which materials have lower stress levels. It can determine robotwith which material to utilize for various situations, such as reduced weight or less stress generating robots with greater fatigueresistance, based on all of these findings. The created structure is compared to the metallic structure's original design. It isobserved that the robot arm's stiffness has increased significantly while its mass and inertia have decreased, resulting in a veryhigh specific stiffness, specific strength, and excellent dynamic performance, which will undoubtedly result in good productivityas per our requirements, which is the project's desired goal.