**EDIPART**, * PART*,

`Option`

`Cvect`

`TM`

`IRCS`

`Ivect`

`Vvect`

`CID`

Compatible Products: – | – | – | – | – | – | DYNA

`PART`

Part number for which the inertia is defined (the part number must have been previously generated using the

**EDPART**command). The part should be composed of a rigid material (**EDMP**,RIGID). For= ADD, you must input a value; there is no default. For`Option`

= DELE or LIST,`Option`

defaults to all parts.`PART`

`Option`

**ADD**—

Define inertia for the specified

(default).`PART`

**DELE**—

Delete the inertia properties for the specified

. The remaining fields are ignored. If`PART`

is blank, inertia properties previously specified using`PART`

**EDIPART**are deleted for all rigid parts.**LIST**—

List the inertia properties for the specified

. The remaining fields are ignored. If`PART`

is blank, inertia properties are listed for all rigid parts.`PART`

`Cvect`

The vector containing the global Cartesian coordinates of the center of mass for the part. This vector must have been previously defined with a dimension of three (

***DIM**command) and filled in as shown below. Ifis blank, the global Cartesian origin (0,0,0) is used as the center of mass.`Cvect`

(1) -- X-coordinate of the center of mass`Cvect`

(2) -- Y-coordinate of the center of mass`Cvect`

(3) -- Z-coordinate of the center of mass`Cvect`

`TM`

Translation mass (no default, must be defined).

`IRCS`

Flag for inertia tensor reference coordinate system.

**0 (or blank)**—

Global inertia tensor (default). You must supply all six inertia tensor components (see

).`Ivect`

**1**—

Principal moments of inertia with orientation vectors. You must supply IXX, IYY, IZZ (see

) and`Ivect`

.`CID`

`Ivect`

The name of a vector containing the components of the inertia tensor. This vector must have been previously defined (

***DIM**command) with a dimension of six and filled in as shown below. Vector entries 2, 3, and 5 are ignored if= 1. There is no default for this vector; it must be specified.`IRCS`

(1) -- IXX component of the inertia tensor`Ivect`

(2) -- IXY (set this entry to zero if`Ivect`

= 1)`IRCS`

(3) -- IXZ (set this entry to zero if`Ivect`

= 1)`IRCS`

(4) -- IYY component of the inertia tensor`Ivect`

(5) -- IYZ (set this entry to zero if`Ivect`

= 1)`IRCS`

(6) -- IZZ component of the inertia tensor`Ivect`

`Vvect`

The name of a vector containing the initial velocity (relative to the global Cartesian coordinate system) of the rigid part. This vector must have been previously defined (

***DIM**command) with a dimension of six and filled in as shown below. Ifis blank, the initial velocity defaults to zero.`Vvect`

(1) -- Initial translational velocity of rigid body in X-direction`Vvect`

(2) -- Initial translational velocity of rigid body in Y-direction`Vvect`

(3) -- Initial translational velocity of rigid body in Z-direction`Vvect`

(4) -- Initial rotational velocity of rigid body about the X-axis`Vvect`

(5) -- Initial rotational velocity of rigid body about the Y-axis`Vvect`

(6) -- Initial rotational velocity of rigid body about the Z-axis`Vvect`

`CID`

Local coordinate system ID. This coordinate system must have been previously defined with the

**EDLCS**command. You must inputif`CID`

= 1 (no default).`IRCS`

The **EDIPART** command applies only to rigid parts (**EDMP**,RIGID).
It allows you to input the inertia properties for the rigid part rather than
having the program calculate the properties from the finite element mesh.

This command is also valid in Solution.

**Distributed ANSYS Restriction **This command is not supported in Distributed ANSYS.