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QDDOT

QDDOT

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QDDOT

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Format

QDDOT(f_id, m_id)

Description

The QDDOT() function returns the modal acceleration for the requested mode (m_id) for the flexible body specified (f_id). This function can be used in your model as a valid MotionSolve expression.

Example

<Post_Request

    id               = "2"

    type             = "EXPRESSION"

    label            = "Modal displacement"

    expr2            = "QDDOT(30102,7)"

    expr3            = "QDDOT(30102,8)"

    expr4            = "QDDOT(30102,9)"

    expr6            = "QDDOT(30102,10)"

    expr7            = "QDDOT(30102,11)"

    expr8            = "QDDOT(30102,12)"

/>

Arguments

f_id

The ID of the flexible body in the model.

m_id

The mode ID whose acceleration is requested.

Note:     m_id > 6, that is, the expression is only supported for non-rigid body modes.

See Also:

Functions

Command Statements

Model Statements

Notation and Syntax