ROBOTIC STRUCTURAL AND FATIGUE ANALYSIS
In the realm of engineering challenges, IDAC undertook a comprehensive structural and fatigue load analysis on a 10Kg robot for a valued partner. The study’s objective was clear: to rigorously evaluate the robot’s strength and fatigue life, specifically focusing on the robotic arms.
challenges
The primary challenge was to assess the structural integrity of the robotic arms under various conditions. The study needed to consider two mounting scenarios: wall-mounted and ceiling-mounted, each experiencing a downward acceleration. Addressing the complexity of these real-world conditions was essential.
Solution
IDAC diligently executed the project in a systematic manner, involving multiple steps:
– 3D CAD Geometry Preparation: The provided geometry was meticulously prepared for Finite Element Analysis (FEA) in ANSYS Design Modeller.
– Meshing: The geometry was meshed using solid elements, ensuring accuracy in critical areas.
– Solution Setup and Analysis: The analysis was performed using ANSYS Professional NLS, focusing on static structural analysis for both load cases.
– Fatigue Load Case Analysis: A separate analysis was conducted to assess the structure’s fatigue resistance under different loading conditions, ensuring a comprehensive evaluation.
Benefits
The study provided invaluable insights into the robot’s behavior under different mounting conditions. By simulating real-world scenarios, potential weaknesses were identified and addressed. This analysis laid the foundation for informed design improvements, enhancing the robot’s overall durability and performance
Conclusion
The results of the structural and fatigue analysis revealed that the robot’s stress levels were well below the endurance limit, indicating a robust design. Fatigue failure was ruled out under the current loading conditions. Moreover, the low-stress regions identified through the analysis opened avenues for further weight optimization, enhancing the robot’s efficiency and longevity.