10.2.1.1. Interface Dialog

In RecurDyn/RFlex Interface dialog box, select ANSYS.

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Figure 10.9 ANSYS Interface dialog box

ANSYS Interface needs the following four files and these file and output files name automatically set same as emat file name.

  • Files

    • Result file (*.rst): Contains model information such as node, element, property and the result of CMS or Modal analysis.

    • Material file (*.mp): Contains material information such as Young’s modulus, shear modulus and Poisson’s ratio.

    • Element Matrices file (*.emat): Contains element matrices information such as element stiffness and mass matrices

    • CM File (*.cm): Contains interface node information.

  • Units: Changes those units that used in the FE program. This option is used in the current model.

  • Output File Name

    • RecurDyn/Flex Input File Name: Defines a generated file name with the extension *.rfi.

10.2.1.1.1. Interface Options

RecurDyn/RFlex provides some interface options to generate appropriate RecurDyn/Flex Input File.

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Figure 10.10 Options dialog box

  • Options

    • Stiffness Matrix: This option decides whether the user wants to import the stiffness matrix from the file(s) generated with FE programs or not. Checking this option enables Static Correction Mode to be generated and User-defined Correction Mode to be attached. If these correction modes are not used, it is not necessary to include the stiffness matrix.

    • The Number of Mode to be Used: This is the number of mode to be included in RecurDyn/RFlex input file. After clicking the check button, you can determine the number of modes to be used.

  • Frequency Range: Adjusts frequency range of mode to be appropriate for available modes. This is the frequency range of mode to be included in RecurDyn/RFlex input file.

    • Lower-Bound Frequency: 0.0.

    • Upper-Bound Frequency: 1.0e+11.

  • Size Reduction

    • Remove Zero-Value for Rotational Mode Shape

      • The rotational mode shape data is outputted in the RFI file as a sparse format.

      • The more zero value is large, the size reduction is effective. In general, the size reduction is effective when the solid element is used and it never influences the result of simulation.

    • Remove Mid-Node Related Information

      • This option is applied in the parabolic element only and is not outputted in the RFI file when the information is related in the mid-node. The mid-node is the node among vertexes in the parabolic element.

      • The result of the position and velocity and acceleration for the marker defined on the mid-node in the markers of RFlex body is changed by the use of this option

      • If the user uses this option, the user cannot use the following as functions.

      Not supported functions

      Static Correction Mode

      RFlex Durability Interface for FEMFAT

    • Data Precision of Stress/Strain Shape

      • Single (float): The stress/strain shape data is outputted in the RFI file as a single precision.

      • Double: The stress/strain shape data is outputted in the RFI file as a double precision.

  • Stress/Strain Shape

    • Stress Shape: The stress shape is included in the RFI file.

    • Strain Shape: The strain shape is included in the RFI file.