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发表于 2014-4-14 10:14:33
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来自 山东青岛
本帖最后由 zcs220 于 2014-4-14 10:56 编辑
这是例子上的,明显和你的坐标系不一致
*TRANSPORT VELOCITY
NTIRE, 8.0
*MOTION,TYPE=VELOCITY,TRANSLATION
NTIRE, 1, , 2.7778
ABAQUS里面轴对称模型默认对称轴为Y轴,楼主的是X轴。而你那样的坐标,不知道是不是直接在3D里面建模的呢?
下面是两个key words的解释
*TRANSPORT VELOCITY
Specify angular transport velocity.
This option is used to define the angular velocity of material transported through the mesh of a deformable body or the transport of material relative to the reference node of a rigid body during a steady-state transport analysis.
First line:
Node set label or node number.
Magnitude of the rotational velocity (in radians/time). This magnitude will be modified by the *AMPLITUDE specification if the AMPLITUDE parameter is used. For a deformable body the rotation is assumed to be about the axis defined on the *SYMMETRIC MODEL GENERATION option. For a rigid body of type REVOLUTION the rotation is assumed to be about the axis of revolution of the body.
*MOTION
Specify motions as a predefined field.
This option is used to specify motions of node sets or individual nodes during cavity radiation heat transfer analysis, to define the motion of a reference frame in steady-state transport analysis, or to define the velocity of the material transported through the mesh during a static analysis.
ROTATION
Include this parameter to define a rigid body rotation about an axis.
TRANSLATION
Include this parameter to give the x-, y-, and z-components of translation in the global coordinate system or in the local coordinate system if *TRANSFORM was used at these nodes. Translational motion is the default.
TYPE
This parameter is used to specify whether the magnitude is in the form of a displacement or a velocity.
Set TYPE=DISPLACEMENT (default for cavity radiation analysis) to give translational or rotational displacement values.
Set TYPE=VELOCITY (only type available for steady-state transport and static analysis) to give translational or rotational velocities. Velocity histories for cavity radiation problems can be specified as illustrated in the discussion on prescribing large rotations in “Cavity radiation,” Section 39.1.1 of the Abaqus Analysis User's Manual.
Data lines to define translational motion (TRANSLATION):
First line:
Node set label or node number.
First translational component of motion prescribed (only degrees of freedom 1, 2, or 3 can be entered). See “Conventions,” Section 1.2.2 of the Abaqus Analysis User's Manual, for a definition of the numbering of degrees of freedom in Abaqus.
Last translational component of motion prescribed (only degrees of freedom 1, 2, or 3 can be entered). This field can be left blank if motion for only one component is being prescribed.
Magnitude of the translational displacement or velocity. This magnitude will be modified by the *AMPLITUDE specification if the AMPLITUDE parameter is used.
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