forceroutinesmodule Module Reference

Module with subroutines for external point load calculations. More...

Functions/Subroutines
subroutine, public	updateexternalforces (forces, iFlag, ierr)
	Updates the external forces (point loads). More...
subroutine, public	addinexternalforces (Qk, RFk, forces, sam, ierr)
	Assembles system force vector contributions from the external loads. More...
subroutine	calcexttriadforce (force, eV, ierr)
	Calculates system force vector contributions from an external load. More...

Detailed Description

Module with subroutines for external point load calculations.

This module contains a set of subroutines for performing various computation tasks on the forcetypemodule::forcetype objects in the model (external point loads) during the dynamic or quasi-static simulation.

Function/Subroutine Documentation

addinexternalforces()

subroutine, public forceroutinesmodule::addinexternalforces	(	real(dp), dimension(:), intent(inout)	Qk,
		real(dp), dimension(:), intent(inout)	RFk,
		type(forcetype), dimension(:), intent(in)	forces,
		type(samtype), intent(in)	sam,
		integer, intent(inout)	ierr
	)

Assembles system force vector contributions from the external loads.

Parameters

	Qk	System external force vector
	RFk	System reaction forces associated with constrained DOFs
[in]	forces	All external point loads in the model
[in]	sam	Data for managing system matrix assembly
[out]	ierr	Error flag

Author

Karl Erik Thoresen

Date

Feb 1999

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calcexttriadforce()

subroutine forceroutinesmodule::calcexttriadforce	(	type(forcetype), intent(in)	force,
		real(dp), dimension(6), intent(out)	eV,
		integer, intent(out)	ierr
	)

Calculates system force vector contributions from an external load.

Parameters

[in]	force	The external point load object to calculate forces for
[out]	eV	Nodal force vector
[out]	ierr	Error flag

Author

Knut Morten Okstad

Date

30 Jan 2008

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updateexternalforces()

subroutine, public forceroutinesmodule::updateexternalforces	(	type(forcetype), dimension(:), intent(inout)	forces,
		integer, intent(in)	iFlag,
		integer, intent(inout)	ierr
	)

Updates the external forces (point loads).

Parameters

	forces	All external point loads in the model
[in]	iFlag	Option telling how to update the forces (see below)
	ierr	Error flag

The way the forces are updated are governed by the value of the argument iFlag as follows:

• iFlag < 0: Update all forces, but not the nodal force vectors (restart)
• iFlag = 0: Update all forces
• iFlag = 1: Update forces that depends on the previous configuration only
• iFlag = 2: Update forces that depends on current (unknown) configuration

Author

Karl Erik Thoresen

Date

Feb 1999

Author

Knut Morten Okstad

Date

Feb 2018

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