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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>Design Responses</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1"><p class = "header"><p class = "abstract"><span class = "shortdesc">Most design responses are only available for certain analysis types. Others
are independent of the analysis type because they are directly linked to the
geometry of the FE-model. Each design response represents one scalar
value which can be extracted from the model information (like the volume) or
from the FE-results.</span>
</p>

</p><hr class = "header"/></td></tr><tr><td class = "Intro2"><span class = "run-in">In this section:</span><br/><ul class = "ulthemes"><li><a title = "The objective function depends on at least one term or more, whereas a constraint always depends on exactly one term. In SIMULIA Tosca Structure these terms or responses are called design response(s), or short DRESP. DRESPs are the fundamental definitions of the optimization problem." href = "tso-m-usr-terms-drespsDef-sb.htm">About Design Responses</a></li><li><a title = "The height of the bead stiffeners is formulated as a constraint of the controller-based optimization problem. The bead height is initially zero for all nodes and the optimizer moves the nodes in the shell normal direction until they reach the bead height." href = "tso-c-usr-terms-beadHeight.htm">Bead Height</a></li><li><a title = "The center of gravity for the three directions is defined by CENTER_GRAVITY_X, CENTER_GRAVITY_Y and CENTER_GRAVITY_Z, respectively." href = "tso-c-usr-terms-cog.htm">Center of Gravity</a></li><li><a title = "This section describes the theory of compliance optimization." href = "tso-m-usr-terms-dresps-compliance-sb.htm">Compliance (Stiffness Optimization)</a></li><li><a title = "This section describes the theory of displacements and rotation." href = "tso-m-usr-terms-dresps-displRot-sb.htm">Displacement and Rotation</a></li><li><a title = "This section describes the theory of eigenfrequency. Eigenfrequencies are the simplest dynamic responses in structural mechanics." href = "tso-m-usr-terms-dresps-eigenfrequency-sb.htm">Eigenfrequency</a></li><li><a title = "ENERGY_STIFF_MEASURE describes a stiffness measure without physical meaning for handling of prescribed displacement in stiffness optimization." href = "tso-m-usr-terms-dresps-enStiffMsr-sb.htm">Energy Stiffness Measure</a></li><li><a title = "This section describes the theory of internal forces." href = "tso-m-usr-terms-dresps-internalForce-sb.htm">Internal Force</a></li><li><a title = "The DRESP named DENSITY_MEASURE can be applied for measuring the amount of intermediate densities." href = "tso-c-usr-terms-densMeasure.htm">Measure for Intermediate Densities</a></li><li><a title = "The moments of inertia can be applied as DRESP (topology, sizing, and bead optimization) and as VARIABLE (topology, sizing, shape, and bead optimization). The moments of inertia are defined using INERTIA_XX, INERTIA_XY (INERTIA_YX), INERTIA_XZ (INERTIA_ZX), INERTIA_YY, INERTIA_YZ (INERTIA_ZY), and INERTIA_ZZ, respectively." href = "tso-c-usr-terms-inertiaMoment.htm">Moment of Inertia</a></li><li><a title = "This section describes the theory of reaction force design responses." href = "tso-m-usr-terms-dresps-reactionForce-sb.htm">Reaction Force</a></li><li><a title = "Stress and Strains" href = "tso-m-usr-terms-dresps-stressstrain-sb.htm">Stress and Strains</a></li><li><a title = "This section describes the theory of thermal optimization. It is available only with Tosca sensitivities." href = "tso-m-usr-terms-dresps-thermal-sb.htm">Thermal</a></li><li><a title = "For standard optimization problems the volume constraint is necessary, for example, if the topology optimization is used in order to minimize the compliance (thus to maximize the stiffness) and no volume constraint is used, the optimizer simply fills up the whole design area with material." href = "tso-m-usr-terms-dresps-volume-sb.htm">Volume</a></li><li><a title = "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." href = "tso-m-usr-terms-dresps-weight-sb.htm">Weight</a></li></ul></td></tr></table></td></tr></table>



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