e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science Volume:02/Issue:10/ October -2020
Impact Factor- 5.354
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STRUCTURAL OPTIMIZATION OF AN L-SHAPED BRACKET SUBJECTED TO DIFFERENT LOADING CONDITIONS Mr. Chandaka Ramana*1, Dr.P.Vijaya Kumar *2, Mr.Y.Kesava Rao *3, Dr. V. Nagabushan Rao *4 *1 PG
Student, Department of ME, Raghu Institute of Technology, Visakhapatnam, AP, INDIA.
*2 Professor, *3 Assistant
Department of ME, Raghu Institute of Technology, Visakhapatnam, AP, INDIA.
Professor, Department of ME, Raghu Institute of Technology, Visakhapatnam, AP, INDIA.
*4 Professor,
Department of ME, Raghu Institute of Technology, Visakhapatnam, AP, INDIA.
ABSTRACT Topology optimization is a very powerful tool in many areas of design such as optics, electronics and structural mechanics. The field materialized from structural design and so topology optimization applied in this context is also known as structural optimization. In this work, a software based approach for topology optimization of an L-shaped bracket to achieve 60% weight reduction subjected to various loading conditions is presented through a commercially available finite element simulation software. The effect of varying the loading conditions on topology and final compliance together with the von- Misses stress value of the L-shaped bracket is presented here. Also determine if weight reduction pockets can be generated in the L-shaped structure and redesign the structure based on the results from topology optimization, and conduct parametric optimization to minimize weight subject to the deformation constraint. Keywords: Topology, Von Misses, Optimization, L-Bracket, Optimum Design.
I.
INTRODUCTION
Designers are many times faced with the problems of deciding the optimal layout (distribution of material) or topology of the design. They have to make trade-offs between various factors to achieve a sensible design, which satisfies the performance criteria imposed on it satisfactorily. While doing this he has to examine a large number of candidate solutions and find a globally optimal solution which satisfies the boundary conditions imposed on it. The task of searching globally optimal solutions is more cumbersome when the design is at conceptual stage.
Fig 1: Categories of optimization Therefore, in an optimization problem, different candidate solutions are compared with each other, and then the best or optimal solution is obtained which means that solution quality is fundamental. In engineering, the optimization of an objective function is basically the maximization or minimization of a problem subjected to constraints. Optimization can basically be categorized into three types namely: (a) sizing (mass), (b) shape and (c) topology (layout). Refer Figure 1. Additive manufacturing (AM), also referred to as Rapid prototyping (RP), Additive layer manufacturing (ALM), 3D printing, and many other names is a new manufacturing technique that allows fast fabrication of computer models designed with three-dimension (3D) computer aided design (CAD) software.
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