# ACCEL2

Bulk Data Entry Defines static acceleration loads at a specific SET of GRID points in the model. Additionally, scale factors for varying direction acceleration loads can be defined using tabular data.

## Format

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
ACCEL2 SID SSID CID A N1 N2 N3
DIR TID

## Example

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
ACCEL2 100 4 0 2.0 1.0 3.0 5.0
X 11

## Definition

Field Contents SI Unit Example
SID Acceleration load set identification number.

(Integer > 0)

SSID Identification for a SET of Grid points at which the acceleration load is applied.
Integer
Specifies an identification number for the set.
<String>
Specifies a user-defined string label for the set. 5

(Integer > 0 or <String>)

CID Coordinate system identification number.
= 0 (Default)
References the basic coordinate system

(Integer ≥ 0, or blank)

A Scale factor for the acceleration load vector.

Default = blank (Real, if non-zero loading is required, then A should be non-zero)

N1,N2,N3 Acceleration load vector components in the coordinate system CID.

Default = blank (Real, if non-zero loading is required, then a minimum of one Ni should be non-zero)

DIR Component direction of the acceleration load variation.

Default = blank (Character; one of X, Y, or Z)

TID Identification number of a TABLED1 entry that specifies the Location (LOCi) versus Scale Factor (VALi) values (similar to the ACCEL entry).

Default = blank (Integer > 0)

1. The acceleration load applied to all grid points in the referenced SSID SET in the model is given by:(1)
$a=VA{L}_{C}*VA{L}_{V}*N$
Where,
$\mathbf{a}$
$\mathbf{N}$
$VAL$
$VA{L}_{C}$