Emag能否取代Maxwell

chuiniuboy

做电磁分析的话 Emag和maxwell有什么本质的区别？Emag能否完全取代Maxwell？

zptonghua

怎么可能，现在低频电磁场主要发展maxwell了？兄台没去官网了解下？

chuiniuboy

zptonghua 发表于 2014-4-18 15:32
怎么可能，现在低频电磁场主要发展maxwell了？兄台没去官网了解下？

现在已有emag软件 我想了解下有没有再买maxwell的必要

zptonghua

chuiniuboy 发表于 2014-4-18 15:34
现在已有emag软件 我想了解下有没有再买maxwell的必要

有钱的话 还是买下来

chuiniuboy

zptonghua 发表于 2014-4-18 15:37
有钱的话 还是买下来

请问什么是maxwell可以做到 但Emag完成不了？

zptonghua

chuiniuboy 发表于 2014-4-18 15:46
请问什么是maxwell可以做到 但Emag完成不了？

几乎没有
maxwell使用比Emag方便些

zengxiaodong

参见帖子：

http://bbs.simol.cn/thread-70261-1-1.html

hjl200421

几乎没有
maxwell使用比Emag方便些

zengxiaodong

请参考很多年前的外国人帖子：

www。xansys.org/forum/viewtopic.php?p=49737&sid=28809bbbeae2f9109ae3e0aed7f40db0

zengxiaodong

以下为引（转帖）用内容：

I am a long-time Ansys user and a casual user of Maxwell 3D. With that in mind, here are my impressions of the two programs.

I find Ansys to be more reliable and robust, however, for a quick answer to simple magnetostatic problems, I choose Maxwell.

Unfortunately, Ansoft has a very "black box" attitude about their software. There's very little information about how and what the program does. They don't have anything like the Ansys theory manual in their documentation set.

Maxwell's default solution mode is based on successive mesh refinement of h-type elements (tets only). I have found that it will sometimes converge to an erroneous solution for magnetic forces. Re-running the analysis usually fixes that. Ansys takes longer to set up and longer to solve (for simple problems), but the solution is generally reliable. Maxwell's built-in geometry creation is close to useless -- you need a separate CAD program to create anything even slightly interesting. Maxwell does not have very good mesh control.

Maxwell has a very nice and powerful postprocessing capability. It also has a powerful macro language, but it is poorly documented and somewhat inconsistent. However, once you figure out how to use it for postprocessing, it makes Ansys EM postprocessing look clumsy.

I have heard that Ansoft will be adding a linear structural solver, but I don't know how well integrated it will be with the EM solvers.

One of the biggest drawbacks of Maxwell is its miserable documentation -- nothing like the very good documentation available for Ansys.

I don't know how Maxwell program support is handled internationally, but in the US it all goes through the two Ansoft offices. My experience has been good with support issues. With Ansys, of course, the quality of support depends on where you are, since it is handled by regional offices.

In summary, I usually use Maxwell for EM solutions, but the problems I need to solve are typically very simple, with structural interactions that can be handled separately. In particular, I would be very cautious of Maxwell's electromagnetic force calculations. For more complex analyses, Ansys is clearly the program of choice.