Beschreibung:
<jats:p>A robotic arm is a device that can perform comparable duties to a human arm and is programmable and versatile. It is utilized to
execute a variety of mechanical operations with great accuracy and efficiency for extremely repetitive jobs. Because robotic arms
are employed for repetitive tasks, fatigue may occur as a result of continuous or continual loading; therefore, fatigue behavior is
crucial to investigate with the lightweight materials. In this research, a robotic arm was designed and evaluated utilizing a
CAD-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 deduce
from all of these data which materials have less deformation and which materials have lower stress levels. It can determine robot
with which material to utilize for various situations, such as reduced weight or less stress generating robots with greater fatigue
resistance, based on all of these findings. The created structure is compared to the metallic structure's original design. It is
observed that the robot arm's stiffness has increased significantly while its mass and inertia have decreased, resulting in a very
high specific stiffness, specific strength, and excellent dynamic performance, which will undoubtedly result in good productivity
as per our requirements, which is the project's desired goal.</jats:p>