DLOAD

Bulk Data Entry

DLOAD – Dynamic Load Combination or Superposition

Description

Defines a dynamic loading condition for frequency response problems as a linear combination of load sets defined via RLOAD1 and RLOAD2 entries, or for transient problems as a linear combination of load sets defined via TLOAD1 and TLOAD2 entries.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
DLOAD	SID	S	S1	L1	S2	L2	S3	L3
	S4	L4	…	…	…	…	…	…

Example

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
DLOAD	5	1.0	2.0	101	2.0	102	2.0	103
	-2.0	201

Field	Contents
SID	Load set identification number. No default (Integer > 0)
S	Scale factor. No default (Real)
S#	Scale factors. No default (Real)
L#	Load set identification numbers of RLOAD1 and RLOAD2 or TLOAD1 and TLOAD2 entries. No default (Integer > 0)

Comments

Dynamic load sets must be selected in the I/O Options or Subcase Information sections with DLOAD=SID. (See I/O Options and Subcase Information DLOAD entry).
The load vector being defined by this entry is given by:
$image\load_vector.gif$ .
Each L# must be unique from any other L# on the same entry.
SID must be unique from all RLOAD1 and RLOAD2 or TLOAD1 and TLOAD2 entries.
A DLOAD entry may not reference a set identification number defined by another DLOAD entry.
RLOAD1 and RLOAD2 loads and TLOAD1 and TLOAD2 loads may be combined only through the use of the DLOAD entry.

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Guidelines for Bulk Data Entries

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