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墙外人

银虫 (初入文坛)

[求助] comsol计算力磁耦合问题 已有5人参与

碰到了一个问题,简单来说,怎么计算金属(比如铁)在磁场中受到磁力后的变形和应力?
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StoneBuddha

新虫 (初入文坛)

引用回帖:
10楼: Originally posted by 火朝阳 at 2017-05-23 16:16:58
我也做这个   但这句话我没看懂
fixed option in COMSOL for imposition of maxwell stress as a boundary condition...

不用变形网格就算不来变形了吗?好多固体力学的例子都没有使用变形网格啊?
13楼2017-10-18 21:44:39
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liuqimin

铁虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
In this simulation, we need three modules, magnetic field (AC/DC), solid mechanics , and ALE.
the first module is able to obtain the spatial field distribution.
the second module is used to achieve the deformation by the imposed magnetic field. it is noted that the maxwell stress should be applied as a boundary condition.
the third module is employed to adapt the mesh to make sure the quality of the calculation. you have to determine which part is free, which part is fixed and define some prescribe displacement?
哈哈哈
2楼2016-03-26 10:52:25
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墙外人

银虫 (初入文坛)

引用回帖:
2楼: Originally posted by liuqimin at 2016-03-26 10:52:25
In this simulation, we need three modules, magnetic field (AC/DC), solid mechanics , and ALE.
the first module is able to obtain the spatial field distribution.
the second module is used to achieve ...

谢谢。之前我用ACDC模块计算过磁场和磁场力,但怎么将磁场力作为输入参数在结构力学模块里面计算时碰到了困难。
此外你提到的自适应网格应该不算是一个模块吧,我们理解不同?
谢谢你的回答。
3楼2016-03-28 10:58:57
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liuqimin

铁虫 (正式写手)

引用回帖:
3楼: Originally posted by 墙外人 at 2016-03-28 10:58:57
谢谢。之前我用ACDC模块计算过磁场和磁场力,但怎么将磁场力作为输入参数在结构力学模块里面计算时碰到了困难。
此外你提到的自适应网格应该不算是一个模块吧,我们理解不同?
谢谢你的回答。...

actually, it is a fixed option in COMSOL for imposition of maxwell stress as a boundary condition

ALE is a module
哈哈哈
4楼2016-03-28 13:24:45
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