STRUCTURAL TOPOLOGY OPTIMIZATION FOR MULTIPLE LOADS

STRUCTURAL TOPOLOGY OPTIMIZATION FOR MULTIPLE LOADS

Brij Vivek α  ,   Amit Kumar Ahirwar β ,   Reetesh Khare¥

α PG student of final year M. Tech structural engineering at Rabindranath Tagore     university (Madhya Pradesh),

β Assistant professor at Department of civil engineering, at Rabindranath Tagore university (Madhya Pradesh),

¥ Assistant professor at department of civil engineering at Rabindranath Tagore university (Madhya Pradesh),

ABSTRACT—

such that they resist stability of the structure. In modern Engineering, the developer requires light weight, high performance and low-cost structures. So, by Structural optimization, the best possible configuration of structure domain In the last decades the structure design process is based on selecting the materials, their size and configuration, to resist the service load is achieved. Topology optimization is achieving the best with the variable resource while satisfying the constraints. In Topology optimization researchers used simple prismatic member as calculation of FEM is easy. For non-prismatic members or curved structures, Isoperimetric formulation is used.

In paper, they generally explain the simply supported structure domain with only one point load at the centre. But in general the loads can be varied throughout the length (L/3, L/5, L/8 etc.). Which was actually a challenging problem to optimize the structure. In practical, load on the structure may be inclined, vertical and horizontal which again was a major to solve this type of problems. However, after changing some line, all the above problems were sorted and the code gave expected results.

Keywords: Discretization, Iso parametric mapping, SIMP method, Finite element analysis, Sensitivity analysis, Filtering sensitivity,