Abaqus Volume II: I–Z Uživatelský manuál stáhnout pdf (Strana 541)

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101

SYSTEM

18.56

SYSTEM: Specify a local coordinate system in which to deﬁne nodes.

This option is used to deﬁne nodes by accepting coordinates relative to a speciﬁed local rectangular coordinate

system and generating the nodal coordinates in the global coordinate system .

Products: ABAQUS/Standard ABAQUS/Explicit

Type: Model data

Level: Part, Part instance

Reference:

•

“Node deﬁnition,” Section 2.1.1 of the ABAQUS Analysis User’s Manual

There are no parameters associated with this option.

Data lines to deﬁne a local coordinate system:

First line:

1. , global X-coordinate of the origin of the local coordinate system (point a in

Figure 18.56–1).

, global Y-coordinate of the origin of the local coordinate system.

, global Z-coordinate of the o rigin of the local coordinate system.

The following entries are not needed for a pure translation:

, global X-coordinate of a point on the -axis of the local coordinate system (point b in

Figure 18.56–1).

, global Y-coor dinate of a point on the -axis of the local coordinate system.

, global Z-coordinate of a point on the -axis of the local coordinate system.

Second line (optional; if not provided, the Z-axis direction remains unchanged, and the -axis

is projected onto the

plane):

1. , global X-coordinate of a point in the plane of the local coordinate system , on

the side of the positive

-axis (for example, point c in Figure 18.56–1).

, global Y-coordinate of a point i n the plane of the local coordinate system, on

the side of the positive

-axis.

, global Z-coordinate of a point in the plane of the local coordinate system, on

the side of the positive

-axis.

18.56–1

ABAQUS Version 6.1 Module:

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Abaqus Volume II: I–Z Uživatelský manuál Strana 541

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