1.On the Options tab, change the settings listed below and click OK to accept the changes. Click Cancel to discard the changes and exit the dialog box.
1)Gap/Contact. Lets you set options related to Gap/Contact.
Include global friction:
Lets you include or ignore the effect of friction for global contact conditions. This flag does not control local contact conditions. COSMOSWorks calculates static friction forces by multiplying the normal forces generated at the contacting locations by the specified coefficient of friction. The direction of the friction force at a location is opposite to the direction of motion at that location.
Friction coefficient:
Sets the coefficient of static friction for global contact conditions. For local contact conditions, a friction coefficient is specified in the Contact Pair PropertyManager for each condition.
Ignore clearance for surface contact:
When this option is checked, the program considers contact conditions regardless of the initial distance between user-defined face pairs.
Large displacement contact:
When this option is checked, the program applies the loads gradually and uniformly in steps up to their full values performing contact iterations at every step. The number of steps is internally decided by the program.
2)Solver. Lets you specify the solver to be used to perform static analysis.
Direct Sparse.:
Check this option to use the Direct sparse solver.
FFE:
Use the FFE solver to run the study.
FFEPlus.:
Use the FFEPlus solver to run the study. This solver uses advanced matrix reordering techniques that makes it more efficient for large problems.
The following options are available with the Direct sparse and the FFEPlus solvers only:
Use inplane effect:
Check this option to consider the effect of in-plane loading.
Use soft spring to stabilize model:
Check this option to instruct the program to add soft springs attached to the ground to prevent instability. If you apply loads to an unstable design, it will translate and/or rotate as a rigid body. You should apply adequate restraints to prevent rigid body motion. In general, you should not activate this flag unless:
you ran the analysis and the program tells you that the design is not stable, or
you know that you have not specified adequate restraints.
Use inertial relief.:
When this option is checked, the program automatically applies inertial forces to counteract unbalanced external loading. This option is particularly useful when you import loads from a motion package (COSMOSMotion) where external loads can be slightly unbalanced. When you check this option, you can solve structural problems without having to apply restraints or activate the soft spring option to stabilize the model against rigid body motions.
2.On the Adaptive tab, check Use p-Adaptive for solution.
Change the settings listed below and click OK to accept the changes. Click Cancel to discard the changes and exit the dialog box.
Stop when. Sets the global criterion to be used for indicating convergence and termination of the loops. Choose the desired option from the drop-down menu. You can choose:
Total strain energy. The strain energy of the model calculated by summing the strain energy of all elements.
RMS von Misses Stress. The Root Mean Square value of the nodal von Misses stresses.
RMS Res. Displacement. The Root Mean Square value of the nodal resultant displacements.
Change is xx% or more. Sets the maximum allowable relative change in the selected global criterion.
Update elements with relative Strain Energy error xx% or more. Sets the maximum allowable relative error in the strain energy of each element. If none of the other two stopping criteria are met, the program will increase the polynomial order of the elements with strain energy of xx% or more.
Starting p-order. Sets the order to be used for the first loop. The lowest order is 2 and the highest order is 5.
Maximum p-order. Sets the highest p-order to be used in this analysis. The highest possible order is 5.
Maximum no. of loops. Sets the maximum number of loops allowed in this analysis. The maximum possible number of loops is 4.
NOTES:
The p-method does not change the mesh. It changes the order of the polynomials used to approximate the displacement field. Using a unified polynomial order for all elements is not efficient. COSMOSWorks tries to increase the order of the polynomial where it is needed. This approach is called the selective adaptive p-method.
It is recommended to select the At Nodes option (from the Jacobian Check menu in the mesh preferences) before meshing a model when using the p-method to solve static problems.
Limitation: In this release, the p-method does not work when variable pressure, variable forces, or multiple pressures are defined on a face.
3.On the Flow/Thermal Effects tab, you can set the following options:
Include Thermal Effects. Considers thermal loading for the analysis. Select one of the following thermal options:
Input Temperature. Considers the prescribed temperatures defined for the model.
NOTE: When using this option, make sure to specify temperatures on components or shells. Specifying temperatures on the boundary only may not be practical. You may need to create and solve a thermal study first to compute temperatures at all nodes.
Temperatures from thermal study. Reads the temperature values from a thermal study. Select a Thermal study and the Time step number (for a transient thermal study).
Uniform temperature. Considers a uniform temperature at all nodes in the part. Specify the uniform temperature value.
Temperatures from COSMOSFloWorks. Reads the temperature values resulting from a completed COSMOSFloWorks on the same configuration from a file. Select the desired FloWorks Result Files (*.fld) that has been generated by COSMOSFloWorks. SolidWorks model name, configuration name, and time step number associated with the specified file are displayed.
Reference temperature at zero strain field. Type the temperature at which no thermal strains exist in the model.
Include fluid pressure effects from COSMOSFloWorks. Reads the pressure results from a COSMOSFloWorks result file.
Fluid pressure option. Sets the file with pressure results generated by COSMOSFloWorks. SolidWorks model name, configuration name, and time step number associated with the specified file are displayed.
To import temperature and pressure from COSMOSFloWorks:
In COSMOSFloWorks, export results to COSMOSWorks for the configuration similar to the COSMOSWorks model.
In the COSMOSWorks Manager tree, right-click a static study icon and select Properties.
The Static dialog box opens.
Click the Flow/Thermal Effects tab.
Do following:
To import temperature, check Include Thermal Effects, select Temperatures from COSMOSFloWorks, and browse to select the desired FloWorks Result File (*.fld).
The SolidWorks model name, COSMOSFloWorks configuration name, and the time step associated with the temperature profile appear.
NOTE: Make sure that the configuration exported by COSMOSFloWorks corresponds to the COSMOSWorks model.
To import pressure, check Include fluid pressure effects from COSMOSFloWorks, and browse to select the desired FloWorks Result File (*.fld).
Click OK.
When you run the study, fluid pressure and/or thermal effects are imported.