/SENSOR/SECT

Block Format Keyword Describes the sensors used to activate or deactivate an object according to section force.

Format

Field	Contents	SI Unit Example
`sens_ID`	Sensor identifier. (Integer, maximum 10 digits)
`unit_ID`	Optional unit identifier. (Integer, maximum 10 digits)
`sens_title`	Sensor title. (Character, maximum 100 characters)
`T`_delay	Time delay. (Real)	$[s]$
`sect_ID`	Section identifier. (Integer, maximum 10 digits)
`DIR`	Force direction. blank Activation at first force or moment TF Total Force TM Total Moment FN Normal Force FT Tangent Force FX Force in X direction FY Force in Y direction FZ Force in Z direction MX Moment in X direction MY Moment in Y direction MZ Moment in Z direction (Integer)
`Fmin`	Minimum force. Default = 0 (Real, maximum 20 fields)	$[N]$
`Fmax`	Maximum force. Default = 0 (Real, maximum 20 fields)	$[N]$
`T`_min	Minimum time duration before activation when criteria is reached. 3 (Real)	$[s]$

Sensors can be used to activate airbags, imposed forces, pressures, and fixed velocities.
Sensors can be used to activate or deactivate these elements: brick, quad, shell, truss, beam, spring or 3N Shell with /ACTIV.
For Sensor type SECT:
Sensor is activated when section force satisfies the criteria:
- $F_{s e c t} < F_{\min}$ or $F_{s e c t} > F_{\max}$ during T_min
Dir defines Force direction:

TF

Total Force

TM

Total Moment

FN

Normal Force

FT

Tangent Force

FX

Force in X direction

FY

Force in Y direction

FZ

Force in Z direction

MX

Moment in X direction

MY

Moment in Y direction

MZ

Moment in Z direction
Values for force and moment component limits in the force-based sensors (SECT) can be positive and negative. Normal, tangent, total force and moment values are always positive.