STEPS INVOLVED IN ANALYSIS
The procedure for a typical ANSYS can be dividend into three distinct steps.
- Build the model.
- Apply load and obtain solution.
- Review the results.
BUILD THE MODEL
This is probably timing most time consuming port in of the analysis. In this step, we move to satisfy job analysis title and then use PREP 7 to define the elements types, element real constants, material prop and the model geometry, specify job name and analysis title. The job name is something with one can identify the ANSYS job
When we specify a job name for an analysis, all files produced by that analysis are given that same as prefixes followed by the file identifier as on extension. This way, by using a different job name for the next analysis, we will ensure that no files are over written.
Defining the Element Types :
The ANSYS element library contains over so different elements types. Each element is identified by a unique a prefix that identifies the element category. The element type determines, among other things, the of freedom set which implies the discipline structural, thermal, electric, magnetic, fluid or coupled field the characteristic scope of the element and whether the element lies in 2-D space or 3-D space.
Cresting the Structure
The geometry of the structure is created in this step. Using the techniques CATIVA5R 14 perform this task. The geometry is crated using different command such as creating profile, lines, arc, areas, volumes etc., and deleting the same.
APPLYING THE LAODS OBTAINS THE SOLUTION
It has the following stages.
Defining the analysis type and analysis options
The analysis is chosen based on the loading conditions and the response we wish to calculate. The following analysis types are available in the ANSYS program static, /transient, harmonic, model, spectrum, bucking and sub structuring.
Defining material properties
Material properties are required fro most element types, depending on the application, material properties may be linear, nonlinear or anisotropic. As with element types and real constant, each set of material properties is given a material properties is given a material references no, and the table of material reference no. Vs material properties are caused the material table.
Liner material properties may be constant of temperature dependent and isotropic / orthotropic. The material properties, which are to be specified, are young modules, density, poisons ratio, thermal conductivity, etc.
APPLYING LOADS
Applying loads includes specifying boundary conditions such as constraints, sports, or boundary field specification as well as other externally and internally applied load. Loads in the ANSYS program divided into six categories.
DOF constraints Forces Surface Loads Body Loads Internal Loads Coupled – field loads
The loads can be applied on the model, as on key points, lines and areas of the finite element model such as on nodes and elements.
Initiating the solution
The action command to initiate the solution calculations is SOLVE. When we use this command, the ANSYS program takes mode and loading information from the database and calculate the result are written to the results file and also to the database.