International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
The lattice structure design enables topology optimization of a robotic arm Abhishek Gupta 1, Purushottam Sahu 2, Ghanshyam Dhanera 3 1Research scholar, BM College of Technology, Indore, MP
2Professor and Head Department of mechanical engineering, College of Technology, Indore, MP 3Professor, Department of mechanical engineering, College of Technology, Indore, MP ---------------------------------------------------------------------***--------------------------------------------------------------------conditions. It involves analyzing and predicting the Abstract -In the fast-paced consumer market, there has
been an increasing demand for affordable and personalized products that cater to various needs. These products can be easily manufactured using additive manufacturing, also known as 3D printing, and optimized using the Creo design package and ANSYS software. To reduce weight, the robotic arm has been optimized using topology optimization strategies and lattice constructions. The ANSYS software is then used to conduct static structural analysis on the topologically optimized design, a generic design, and the lattice structure. The results of the finite element analysis (FEA) include equivalent stress, deformation, and safety factor. This analysis helps evaluate the impact of reduced mass density on the strength-to-weight ratio of the robotic arm. A comparative study is then conducted between the generic design and the topologically optimized design based on these parameters. Contour plots obtained from the FEA analysis are used to identify critical regions with high stresses and deformation. The percentage reduction in mass density is compared, and the effect of this reduction on the strengthto-weight ratio is evaluated..
stresses, strains, deformations, and stability of structures to ensure their safety, performance, and durability.
Key Words - FEA, Hydraulic cylinder, Safety factor
These concepts and techniques are often used together to optimize and analyze the behavior of structures, such as robotic arms, components, or products. By utilizing ANSYS software and conducting FEA, engineers can simulate and evaluate the performance of structures, including those manufactured through additive manufacturing methods, while also exploring the benefits of topological optimization to improve their design.
Additive Manufacturing: Additive Manufacturing, also known as 3D printing, is a manufacturing process that builds objects layer by layer using digital models. It allows for the creation of complex geometries and customized products by adding material rather than subtracting it. Additive manufacturing has revolutionized various industries by enabling rapid prototyping, cost-effective production, and design freedom. Topological Optimization: Topological optimization is a computational design approach used to optimize the material distribution within a given design space. It aims to achieve the best structural performance while reducing weight or material usage. Topological optimization analyzes the material layout and removes unnecessary material or redistributes it to improve the performance of the structure, such as enhancing stiffness, reducing stress concentrations, or minimizing weight.
1. INTRODUCTION: ANSYS: ANSYS is a widely used software suite for engineering simulation, including finite element analysis (FEA), computational fluid dynamics (CFD), and other multiphysics simulations. It provides tools for simulating and analyzing the behavior of structures, fluids, and electromagnetic systems.
Topological optimization is a computational design method used to determine the optimal material distribution within a given design space. It aims to maximize the performance of a structure while minimizing its weight or material usage. By analyzing and optimizing the topology (i.e., the arrangement of material) within the design space, engineers can achieve designs that are more efficient, lighter, and exhibit improved mechanical properties.
FEA (Finite Element Analysis): FEA is a numerical method used to analyze the behavior of complex structures and systems under various loads and conditions. It divides the structure into smaller, finite elements to approximate the continuous behavior and solve the equations governing the system. FEA is commonly used to predict the stress, deformation, and performance of components or systems. Structural Analysis: Structural analysis is a field of engineering that focuses on understanding the behavior and response of structures under different loads and
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