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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>Manufacturing Conditions and Geometrical Restrictions</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">
    For the topology optimization with <span class = "ph">Tosca Structure</span>,
    it is possible to define constraints (<code class = "ph codeph">DVCON_TOPO</code>)
    that have a direct influence on the individual design variables (<code class = "ph codeph">DV_TOPO</code>).
    This allows the manufacturing restrictions or geometrical design aspects
    to be taken into consideration in the topology optimization.
  </span>

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</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 = "For the topology optimization with Tosca Structure, it is possible to define constraints (DVCON_TOPO) that have a direct influence on the individual design variables (DV_TOPO). This allows the manufacturing restrictions or geometrical design aspects to be taken into consideration in the topology optimization." href = "tso-c-user-TopOpt-DesArea-ManufCondGR.htm">About Manufacturing Conditions and Geometrical Restrictions</a></li><li><a title = "For the definition of restrictions in Tosca Structure.gui consider the following remarks." href = "tso-c-user-TopOpt-DesArea-TipDefRes-gui.htm">About Defining Restrictions with Tosca Structure.gui</a></li><li><a title = "Sometimes it is required to maintain material in certain parts of the design area, such that they remain unchanged in the optimized model. Element groups describing these parts can be defined as frozen area." href = "tso-m-user-TopOpt-DesArea-FrozArea-sb.htm">Frozen Areas</a></li><li><a title = "Casting restrictions can be used to prevent undesired undercuts in optimized models." href = "tso-m-user-TopOpt-DesArea-ManuUndercuts-sb.htm">Prevention of Undercuts in the Model</a></li><li><a title = "Overhang restrictions can be used to prevent undesired overhangs in the model." href = "tso-m-user-TopOpt-DesArea-ManuOverhangs-sb.htm">Prevention of Overhangs in the Model</a></li><li><a title = "The milling restriction gives the user the possibility to obtain optimization results that are millable from multiple directions." href = "tso-m-user-TopOpt-DesArea-Mill-sb.htm">Milling Restriction</a></li><li><a title = "Different symmetry conditions can be defined for an optimization in SIMULIA Tosca Structure. They can be used for obtaining symmetrical results using nonsymmetrical meshes, saving the processing time for the FE-calculation. In addition, symmetrical load case can often be reduced in the FE model." href = "tso-m-user-TopOpt-DesArea-SymCond-sb.htm">Symmetry Conditions</a></li><li><a title = "The maximum and minimum member size restrictions prevent parts of the model from becoming too thick or too thin." href = "tso-m-user-TopOpt-DesArea-MScontrol-sb.htm">Member Size Restrictions</a></li><li><a title = "The rib restriction gives the user the possibility to obtain optimization results that contain rib patterns." href = "tso-m-user-TopOpt-DesArea-Rib-sb.htm">Rib Design</a></li><li><a title = "For sensitivity-based topology optimization, elements can be clustered to have equal pseudo densities in certain areas during the optimization (CHECK_TYPE = CLUSTER_GROUPS)." href = "tso-c-user-TopOpt-DesArea-clustering-gui.htm">About Cluster Groups</a></li><li><a title = "It is necessary to add only the restrictions needed for solving the optimization problem. This section shows you possible combinations of Manufacturing Restrictions." href = "tso-c-user-TopOpt-DesArea-ComManRes.htm">Combination of Manufacturing Restrictions</a></li></ul></td></tr></table></td></tr></table>




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