TABLED4

Bulk Data Entry

TABLED4 – Dynamic Load Tabular Function, Form 4

Description

Defines the coefficients of a power series for use in generating frequency-dependent and time-dependent dynamic loads. Also contains parametric data for use with the table.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
TABLED4	TID	X1	X2	X3	X4
	A0	A1	A2	A3	A4	A5	A6	A7
	A8	…	…	…	…	…	…	…

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
TABLED4	28	0.0	1.0	0.0	100
	2.91	-0.0329	6.51e-5	0.0	-3.4-7	ENDT

Field	Contents
TID	Table identification number. No default (Integer > 0)
X#	Table parameters. No default (Real; X2 ≠ 0.0; X3 < X4)
A#	Coefficients. No default (Real)

Field

Contents

TID

Table identification number.

No default (Integer > 0)

Table parameters.

No default (Real; X2 ≠ 0.0; X3 < X4)

Coefficients.

No default (Real)

Comments

1.	At least one continuation entry must be specified.

2.	The end of the table is indicated by the existence of 'ENDT' in either of the two fields following the last entry. An error is detected if any continuations follow the entry containing the end-of-table flag 'ENDT'.

3.	TABLED4 uses the algorithm:

tabled4_eq

Where, x is input to the table, y is returned and N is the number of pairs. Whenever x < X3, use X3 for x; whenever x > X4, use X4 for x. There are N + 1 entries in the table. There are no error returns from this table look-up procedure.

4.	For frequency-dependent loads, x# is measured in cycles per unit time.

5.	This card is represented as a loadcollector in HyperMesh.