Weight Overview

The weight term is the same as the volume term except you have the possibility of constraining your optimization result to have a certain physical weight.

Parameter Name

Formula

WEIGHT

 ∑ W e

where We is the element weight. For topology optimization, design elements are scaled with the current relative density.

Analysis-Independent Design Response

For the weight, the following table shows the allowed combinations between the strategy and the items OBJ_FUNC and CONSTRAINT with C for controller and S for sensitivity-based optimization.

TOPO

SHAPE

BEAD

SIZING

OBJ_FUNC

S

C, S

S

CONSTRAINT

S

C, S

S

The weight term is the same as the volume term except you have the possibility of constraining your optimization result to have a certain physical weight. SIMULIA Tosca Structure requires that the density of all elements is defined in the input file. In addition, only supported element types are used in the weight calculation.