Operands
=========


Operand MODE
-------------


.. code-block:: text

    ♦ MODE = m_in

Name of the mode_* type concept whose natural mode normalization we want to change. If m_out is the same as m_in and if the keyword 'reuse' is activated with the value m_out, the renormalization is done in place.


.. _RefNumPara__3167_750452633:


Operand NORME
--------------


.. code-block:: text

    ◊/NORME =

Symbolic name for the chosen standard.

'MASS_GENE':

The modes are standardized to the generalized unit mass.

'RIGI_GENE':

The modes are standardized to the unitary generalized rigidity.

'TRAN':

The modes are normalized to 1. for the largest of the translation components: (components: DX, DY, DZ).

'TRAN_ROTA':

The modes are standardized to 1. for the largest of the translation and rotation components (components: DX, DY, DZ, DRX, DRY, DRZ).

'EUCL':

The modes are normalized to the Euclidean norm of components that are not multipliers of LAGRANGE (component: LAGR).

'EUCL_TRAN':

The modes are standardized to the Euclidean norm of components that are translation components (components: DX, DY, DZ).


.. _RefNumPara__3169_750452633:


Operands GROUP_NO and NOM_CMP
----------------------------


.. code-block:: text

    ◊ GROUP_NO = grno

Name of the group of a :math:`\mathit{grno}` node where we are normalizing.

*|* *Attention: the node group*:math: `\ mathit {grno}` *must contain a single node.*

.. code-block:: text

    ♦ NOM_CMP = cmp

The name of the normalization component to node :math:`\mathit{no}` or to the group of a node :math:`\mathit{grno}`. This operand is mandatory if GROUP_NO is specified.

The modes are standardized to :math:`1.` for the :math:`\mathit{cmp}` component of node :math:`\mathit{no}` or the group of a node :math:`\mathit{grno}`.


.. _RefNumPara__3171_750452633:


Operands AVEC_CMP/SANS_CMP
---------------------------


.. code-block:: text

    ◊/AVEC_CMP = a_cmp

a_cmp list of component names used for normalization.

The modes are standardized to :math:`1.` for the largest component in the a_cmp list regardless of the node.


.. code-block:: text
/SANS_CMP = s_cmp

s_cmp is a list of component names that are not used for normalization.

The modes are standardized to :math:`1.` for the largest component that is not in the cmp-list.


Keyword factor MODE_SIGNE
--------------------------

This keyword factor makes it possible to impose for all modes the sign of a component of a node specified by the user. This keyword factor can only be used for real modes (generalized problem).


.. code-block:: text
 ♦ GROUP_NO = big

Name of the group of a node where the sign of a component is imposed.

 *|* *Attention: the node group*:math: `\ mathit {grnd}` *must contain a single node.*

.. code-block:: text
 ♦ NOM_CMP = cmp

Name of the group component of a :math:`\mathit{grnd}` node where the sign is imposed.


.. code-block:: text
 ◊ SIGNE =/'POSITIF'
/'NEGATIF'

Imposed component sign: 'POSITIF' or 'NEGATIF'


Case of normalizing a fashion collection from DEFI_BASE_MODALE
--------------------------------------------------------


.. code-block:: text

    If you want to standardize a collection of modes (modal base) from DEFI_BASE_MODALE, you have to fill in the two matrices, mass and stiffness, allowing you to update the modal parameters:
◊ MASSE = mass [matr_asse_depl_r]

    or [matr_asse_gene_r]

    or [matr_asse_pres_r]
◊ RAIDE = mass [matr_asse_depl_r]

    or [matr_asse_depl_c]

    or [matr_asse_gene_r]

    or [matr_asse_pres_r]

In fact, in this case, the information on the mass and stiffness (and possibly damping) matrices on which the modal base is based has been lost, or the modes may come from different sets of matrices. It is therefore necessary to remind them to operator NORM_MODE.

In the case of a complex mode base, it is also necessary to give a damping matrix if we want to normalize with respect to the generalized mass or to the generalized stiffness (cf. paragraph :ref:`4.2 <RefHeading__1199_429213158>`).

.. code-block:: text
 ◊ AMOR = mass [matr_asse_depl_r]

    or [matr_asse_gene_r]


Operand TITRE
--------------


.. code-block:: text

    ◊ TITRE = t

Title associated with the concept produced by this operator [:external:ref:`U4.03.01 <U4.03.01>`].


Operand INFO
-------------


.. code-block:: text

    ◊ INFO = 1 or 2

For each mode, the name of the old standard and the name of the new standard are indicated in file MESSAGE. The printed names of the standards correspond to the keywords described in paragraphs :ref:`3.2 <RefNumPara__3167_750452633>`, :ref:`3.3 <RefNumPara__3169_750452633>`, :ref:`3.4 <RefNumPara__3171_750452633>`.