/MPC

Block Format Keyword Defines multi-point constraints on nodes.

Format

(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
/MPC/`MPC_ID`
`MPC_title`

Card 1 to N

Field	Contents	SI Unit Example
`MPC_ID`	Multi-point constraint identifier. (Integer, maximum 10 digits)
`MPC_title`	Multi-point constraint title. (Character, maximum 100 characters)
`node_ID`_i	Node identifier. (Integer)
`Idof`_i	Degree-of-freedom (velocity direction). (Integer)
`skew_ID`_i	Local skew (for each DOF). (Integer)
$α_{i}$	Scale coefficient. (Real)

This option is not available if it is applied on:
- a translational DOF of a node with a null mass
- a rotational DOF of a node with a null inertia
User-defined linear relation between nodal velocities.
The N formats are necessary to define a kinematic relation between N velocity components. Each term may be expressed in its own local skew system (Skew_ID):(1)
$\sum_{i = 1}^{N} α \cdot V_{i d o f}^{i s k} (n o d e) = 0$

$i s k$ = Skew_ID

$i d o f$ = 1...6

1...3: translational velocity

4...6: rotational velocity