System and method of direct mesh manipulation

A method of direct mesh manipulation of a mesh model, said method comprising the steps of:

• selecting a geometric model, wherein the model is in a computer-aided design (CAD) format;
• converting the CAD model into a mesh model;
• evaluating the mesh model using a computer-aided engineering (CAE) analysis;
• determining whether to vary a design criterion;
• modifying the predetermined design criterion, if determined to vary a design criterion;
• updating the mesh model to include the modified design criterion using direct mesh manipulation (DMM) of the mesh model, wherein a surface of the mesh model affected by the modified design criterion is described using a Dirichlet parameter distribution to determine a displacement of the surface;
• modifying the feature surface of the mesh model by the displacement;
• and
• using the updated mesh model.

A method of direct mesh manipulation of a mesh model, said method comprising the steps of:

• selecting a geometric model, wherein the model is in a computer-aided design (CAD) format;
• converting the CAD model into a mesh model;
• evaluating the mesh model using a computer-aided engineering (CAE) analysis;
• determining whether to vary a predetermined design criterion;
• modifying the predetermined design criterion, if determined to vary the design criterion;
• updating the mesh model to include the modified design criterion using direct surface manipulation (DMM) of the mesh model, wherein a surface of the mesh model is described as an elastic sheet and linear elastic finite element analysis is applied to determine displacement of the surface;
• modifying the surface of the mesh model by the displacement;
• and
• using the updated mesh model.

A method of direct mesh manipulation of a mesh model, said method comprising the steps of:

• selecting a geometric model, wherein the model is in a computer-aided design (CAD) format;
• converting the CAD model into a mesh model;
• evaluating the mesh model using a computer-aided engineering (CAE) analysis;
• determining whether to vary a predetermined design criterion;
• modifying the predetermined design criterion, if determined to vary the design criterion;
• updating the mesh model to include the modified design criterion using direct surface manipulation (DSM) of the mesh model, wherein a surface of the mesh model is embedded within a lattice structure having a volume, a point within the volume is modified, and finite element analysis is applied to determine displacement of each node within the lattice,
• modifying the surface of the mesh model by the displacement;
• and
• using the updated mesh model.