Module with data types representing damper objects. More...

Data Types
type	damperbasetype
	Data type representing a base damper object. More...

type	dampertype
	Data type representing a damper element. More...

type	damperptrtype
	Data type representing a base damper pointer. More...

interface	getptrtoid
	Returns pointer to object with specified ID. More...

interface	writeobject
	Standard routine for writing an object to file. More...

interface	nullifydamper
	Initializes a damper object. More...

interface	deallocatedampers
	Deallocates an array of damper objects. More...

Functions/Subroutines
type(damperbasetype) function, pointer, private	getptrtoiddamperbase (array, id, index)
	Returns pointer to (first) base damper with specified id. More...

subroutine, private	writedamperbasetype (dmp, io, complexity)
	Standard routine for writing an object to io. More...

subroutine, private	writedampertype (damper, io, complexity)
	Standard routine for writing an object to io. More...

subroutine, private	nullifydamperbase (dmp)
	Initializes a base damper object. More...

subroutine, private	nullifydamperelement (damper)
	Initializes a damper element. More...

subroutine, private	deallocatedamperbase (dmp, hasTriad1, hasTriad2)
	Deallocates a base damper object. More...

subroutine, private	deallocatedamperelement (damper)
	Deallocates a damper element. More...

subroutine, private	deallocatedamperbases (dampers)
	Deallocates an array of base damper objects. More...

subroutine, private	deallocatedamperelements (dampers)
	Deallocates an array of damper elements. More...

real(dp) function	damperforce (dmp, ierr)
	Evaluates the current force for a damper. More...

real(dp) function	dampercoeff (dmp, ierr)
	Evaluates the current damping coefficient for a damper. More...

subroutine	updatedampervelocity (dmp, dt)
	Updates the deformational velocity in a damper. More...

Detailed Description

Module with data types representing damper objects.

The module also contains subroutines for accessing the damper data.

Function/Subroutine Documentation

◆ dampercoeff()

real(dp) function dampertypemodule::dampercoeff	(	type(damperbasetype), intent(in)	dmp,
		integer, intent(inout)	ierr
	)

Evaluates the current damping coefficient for a damper.

Parameters

[in]	dmp	The dampertypemodule::damperbasetype object to evaluate for
	ierr	Error flag

Returns: Current damping coefficient

The current damping coefficient, coeff, is evaluated as

 coeff = dmp0 + dmp1*coeffFunction, or
       = dmp0 + dmp1*d(forceFunction)/dv

The variable dmp0 represents a constant damping coefficient term both if the damper is defined as a coefficient-velocity function or a force-velocity function.

Author: Knut Morten Okstad

Date: 7 Jun 2002

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◆ damperforce()

real(dp) function dampertypemodule::damperforce	(	type(damperbasetype), intent(in)	dmp,
		integer, intent(inout)	ierr
	)

Evaluates the current force for a damper.

Parameters

[in]	dmp	The dampertypemodule::damperbasetype object to evaluate for
	ierr	Error flag

Returns: Current damping force

The current damping force is evaluated as

 force = dmp0*velocity + dmp1*int_0^velocity{coeffFunction}dv, or
       = dmp0*velocity + dmp1*forceFunction(velocity)

The variable dmp0 represents a constant damping coefficient term both if the damper is defined as a coefficient-velocity function or a force-velocity function.

Author: Knut Morten Okstad

Date: 7 Jun 2002

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◆ deallocatedamperbase()

subroutine, private dampertypemodule::deallocatedamperbase	(	type(damperbasetype), intent(inout)	dmp,
		logical, intent(in), optional	hasTriad1,
		logical, intent(in), optional	hasTriad2
	)

private

Deallocates a base damper object.

Parameters

	dmp	The dampertypemodule::damperbasetype object to deallocate
[in]	hasTriad1	If .true., this is an axial damper or damper to ground
[in]	hasTriad2	If .true., this is an axial damper

Author: Knut Morten Okstad

Date: 23 Jan 2017

◆ deallocatedamperbases()

subroutine, private dampertypemodule::deallocatedamperbases ( type(damperbasetype), dimension(:), pointer dampers )

private

Deallocates an array of base damper objects.

Parameters

dampers The dampertypemodule::damperbasetype objects to deallocate

Author: Knut Morten Okstad

Date: 23 Jan 2017

◆ deallocatedamperelement()

subroutine, private dampertypemodule::deallocatedamperelement ( type(dampertype), intent(inout) damper )

private

Deallocates a damper element.

Parameters

damper The dampertypemodule::dampertype object to deallocate

Author: Knut Morten Okstad

Date: 23 Jan 2017

◆ deallocatedamperelements()

subroutine, private dampertypemodule::deallocatedamperelements ( type(dampertype), dimension(:), pointer dampers )

private

Deallocates an array of damper elements.

Parameters

dampers The dampertypemodule::dampertype objects to deallocate

Author: Knut Morten Okstad

Date: 23 Jan 2017

◆ getptrtoiddamperbase()

type(damperbasetype) function, pointer, private dampertypemodule::getptrtoiddamperbase	(	type(damperbasetype), dimension(:), intent(in), target	array,
		integer, intent(in)	id,
		integer, intent(out), optional	index
	)

private

Returns pointer to (first) base damper with specified id.

Parameters

[in]	array	Array of dampertypemodule::damperbasetype objects to search within
[in]	id	Base ID of the object to search for
[out]	index	The array index of the found object

If the damper is not found, NULL is returned.

Author: Bjorn Haugen

Date: 5 Oct 2001

◆ nullifydamperbase()

subroutine, private dampertypemodule::nullifydamperbase ( type(damperbasetype), intent(out) dmp )

private

Initializes a base damper object.

Parameters

dmp	The dampertypemodule::damperbasetype object to initialize

Author: Knut Morten Okstad

Date: 1 Mar 2001

◆ nullifydamperelement()

subroutine, private dampertypemodule::nullifydamperelement ( type(dampertype), intent(out) damper )

private

Initializes a damper element.

Parameters

[out] damper The dampertypemodule::dampertype object to initialize

Author: Knut Morten Okstad

Date: 1 Mar 2001

◆ updatedampervelocity()

subroutine dampertypemodule::updatedampervelocity	(	type(damperbasetype), intent(inout)	dmp,
		real(dp), intent(in)	dt
	)

Updates the deformational velocity in a damper.

Parameters

	dmp	The dampertypemodule::damperbasetype object to update for
[in]	dt	Time increment size

Author: Knut Morten Okstad

Date: 10 Dec 2020

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◆ writedamperbasetype()

subroutine, private dampertypemodule::writedamperbasetype	(	type(damperbasetype), intent(in)	dmp,
		integer, intent(in)	io,
		integer, intent(in), optional	complexity
	)

private

Standard routine for writing an object to io.

Parameters

[in]	dmp	The dampertypemodule::damperbasetype object to write
[in]	io	File unit number to write to
[in]	complexity	If present, the value indicates the amount of print

Author: Karl Erik Thoresen

Date: Dec 1998

◆ writedampertype()

subroutine, private dampertypemodule::writedampertype	(	type(dampertype), intent(in)	damper,
		integer, intent(in)	io,
		integer, intent(in), optional	complexity
	)

private

Standard routine for writing an object to io.

Parameters

[in]	damper	The dampertypemodule::dampertype object to write
[in]	io	File unit number to write to
[in]	complexity	If present, the value indicates the amount of print

Author: Karl Erik Thoresen

Date: Dec 1998

Data Types

Functions/Subroutines

Detailed Description

Function/Subroutine Documentation

◆ dampercoeff()

◆ damperforce()

◆ deallocatedamperbase()

◆ deallocatedamperbases()

◆ deallocatedamperelement()

◆ deallocatedamperelements()

◆ getptrtoiddamperbase()

◆ nullifydamperbase()

◆ nullifydamperelement()

◆ updatedampervelocity()

◆ writedamperbasetype()

◆ writedampertype()