离散刚体在hypermesh画网格导入ABAQUS运算出现错误?

(1)我模拟的是一个三通管的涨形实验,原先在abaqus中画网格,但是由于我在ABAQUS中没能将网格画的很好,所以我将离散刚体壳体模具拿到hypermesh中去画。然后再以.inp文件的形式倒回到ABAQUS中,其他设置都没有变,但是在仿真的时候提示我出问题了。我看了下主要是提示我那个模具上的参考点出问题了。

santognguan.png

(2)这是我在hypermesh导出的离散刚体模具,在ABAQUS中加了一个参考点,结果出错了,主要错误为下面的提示。

232562567.png

The rigid bodies with the reference nodes contained in node set ErrNodeRefNodeNoMass have no mass associated with them and some degrees of freedom of the reference node are not restrained. Either mass must be defined or all of the translational degrees of freedom must be constrained. See the status file for further details.


The rigid bodies with the reference nodes contained in node set ErrNodeRefNodeNoRot1Axis have atleast one axis about which the rotary inertia magnitude is zero, and the rigid bodies have atleast one rotational degree of freedom which is unconstrained. Either rotary inertia must be defined at the reference nodes or all of the rotational degrees of freedom at the reference nodes must be constrained. See the status file for further details.


Abaqus/Explicit Packager exited with an error - Please see the  status file for possible error messages if the file exists.

(3)疑问?

是不是只有网格信息的模具,和原先具有几何信息的模具他们的设置有所不同呢,为啥会提示缺少质量和有自由度没有约束呢,看结果文件好像都指向这个网格模具的参考点。

(4)对这个模具的所有操作如下

首先将这个模具导入后我将其设置为离散刚体,将这个怕Part复制到原先的Model中,删除带入的这个模型文件;然后在interaction这一步中定义了模具的内表面,定义了其与内部管件的相互接触关系;在mesh模块中定义了单元类型。然后提交分析,最后出错而结束分析了。

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  • 微信公众号:FILWTBY
    2017年4月7日
    这么复杂,直接用abaqus划分,模型又不是多复杂,不行找我给你划分
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  • 易炜
    2017年4月7日
    with the reference nodes contained in node set ErrNodeRefNodeNoMass have no mass associated with them and some degrees of freedom of the reference node are not restrained. Either mass must be defined or all of the translational degrees of freedom must be constrained. 说的是你参考点没有质量,你给个质量就OK了~
    0评论 已采纳 举报

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