Adams Basic Package > Adams Solver > Welcome to the C++ Version of Adams Solver > C++ Functions > QDDOT

QDDOT

The QDDOT function returns the second time derivative of the modal coordinate for mode number mode_number of FLEX_BODY/id.

Format

QDDOT(id, mode_number)

Arguments

 
id
The identifier of the FLEX_BODY.
mode_number
The mode whose modal coordinate data is requested.

Example

MFORCE/20,FLEX_BODY=6,CASE_INDEX=1,SCALE=QDDOT(5,10)
In this example, a modal force, whose loadcase is scaled by the second time derivative of the modal coordinate corresponding to mode number 10 on FLEX_BODY/5, is defined.