Ansys command flow

Hehe, please refer to it!

On buckling analysis.

/solu！ Input solver

antype，0！ Try to solve statically.

Eqslv, spar! Select the spar solver.

Stress, go! Turn on the Prestress option.

Solve! Find a solution

end

/solu！ Again, the prestress effect was mainly considered in the previous time, which is more common in this buckling analysis.

antype， 1！ Buckling analysis

bucopt，lanb， 1，0，0！ Specifies the analysis options for buckling analysis, and the last three digits are the default values.

mxpand， 1，0，0， 1，0.00 1！ Modal expansion analysis extends the analysis, and establishes the calculation unit and the information of inverse solution. The following 0.00 1 is the default value.

solve

end

/post 1！ Enter the post-processor

Gather around, first of all! Select the first loading step.

Assemble, list! Lists the solution information results of the first loading step.

pldisp， 1！ Displays modal results, which are also displacements, including elements and contours.

end

/config，nres， 100！ The maximum number allowed in the result file (usually called the loading step).

/prep7！ Enter the pretreatment program

tb，biso， 1， 1，2！ Specify the attribute data table for co-directional linear analysis, plastic distribution, etc. Specify the good material properties of 1, and then specify the temperature number of 1.

tbtemp，0！ Defines the temperature of the data table.

tbdata，，2.0e8，0，，，，！ Define data for the attribute data table you just defined. By default, this can only be understood in combination with the selected unit. The first omission is that the default option defines six data at a time.

Upgeom, 0.0 1. 1. 1,' Du Qiang',' rst', "! The first is the scale factor, which defines the following model. If it is less than 1, it means decrease. The last two 1 are loading steps and substeps. Following the name and suffix of the newly generated file, the displacement obtained from the analysis is added to the nodes of the finite element model, and the geometry of the finite element model is updated.

end

/solu

antype，0！ Steady state analysis

nlgeom， 1！ Point out that it contains large deformation.

Outres, all, all! Output the solution information of all nodes and elements.

arclen， 1，0！ Activate the arc length method for nonlinear analysis, but set the maximum radius to 0.

arctrm，u，0.5，78，uy！ Arc length is used to solve the termination condition. When the primary displacement is equal to or greater than the set value, the analysis is stopped, and the displacement is set to 0.5, which is subject to the displacement of 78 nodes, and the Uy direction is valid, that is, if the displacement of 78 nodes in the UY direction is 0.5, the analysis is stopped!

nsubst，200，，， 1！ This load step is designated as 200, and the last time step of the current load step is taken as the starting time step.

solve

end

/post26！ Post input time processor

Nsol, 2, 78, U, Y, deflection! The displacement results of 78 nodes in the Y direction are stored in the name of deflection logo, and 2 is the code name (characteristic number, solved).

rforce，3， 186 1，f，x，reactionf！ The structural force of node 186 1 in X is stored under the reactionf logo, and 3 is the code name.

/axlab, x, deflection! Represents the display content of the X-axis label in the graphic display, and here is the Y-axis label.

/axlab，y，reactionf

xvar，2！ Information, graphics,

plvar，3！ Display 3 code information, here is the display graph on the Y axis, and at most 10 variables can be displayed at a time.

Done! Push out processor