r*****t
发帖数: 286 | 1 ☆─────────────────────────────────────☆
wass (wass) 于 (Tue Feb 27 19:29:20 2007) 提到:
In some book, FDM is used on SDE. Why not FEM? Thanks.
☆─────────────────────────────────────☆
davfox121 (davfox) 于 (Tue Feb 27 19:36:57 2007) 提到:
Maybe FEM mainly for continum model, and FDM for discrete model
☆─────────────────────────────────────☆
Columbia (Columbia) 于 (Tue Feb 27 19:48:22 2007) 提到:
FDM简单，FEM相对来说比较难，街上很大部分人可能都没有用过，
并且也不是花两天一个星期就能学会的
☆─────────────────────────────────────☆
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c***r
发帖数: 1570 | 2 【 以下文字转载自 Computation 讨论区 】
发信人: caoer (caoer), 信区: Computation
标 题: 求审稿 计算力学，FEM, FVM, FD, MD, 谱方法，固体，电磁
发信站: BBS 未名空间站 (Sun Dec 16 12:11:53 2012, 美东)
求审稿 计算力学，FEM, FVM, FD, MD, 谱方法，固体，电磁
对计算和数值方法有深入的认识，phd刚毕业，去工业界了，不做研究了，但是想保持
对这个行业的铭感度，了解最新的研究方向，也是个人兴趣。
之前没有审过稿，但是会认真对待每一篇稿子的。
请投条，谢谢。 |
|
l*********r
发帖数: 2 | 3 Senior Scientist – Global Engineering and Materials Inc. has an immediate
full-time opening for this position in its NJ Office. The ideal Candidate
will have demonstrated in-depth experience in fields of computational
mechanics, mechanics of composite, and advanced structural analysis and
design. Experience in commercial FEM application and customization is
considered a plus. The successful applicant will work on physics-based
modeling, thermal-mechanical analysis, and advanced FEM solver develo |
|
Y*******m
发帖数: 744 | 4 【 以下文字转载自 JobHunting 讨论区 】
发信人: Yanbeanmm (hahaha), 信区: JobHunting
标 题: ANSYS FEM at Semicon Area
发信站: BBS 未名空间站 (Wed Aug 4 16:48:31 2010, 美东)
We are currently looking for someone very familiar in this area through
practical application of tools such as ANSYS, COMSOL and other FEM tools to
solve practical problems in semiconductor technology at various scales of
interest. For example, we are aggressively pushing the technology in NAND
cells – scaling well below 20nm. At these nano-scales, st |
|
r*******g
发帖数: 453 | 5 I'm wondering if some body here has the experience of scanning a 3D specimen
and then get its surface profile. After that, how to incorporate it into FEM
software to generate mesh. So, the questions are:
What kind of hardware did you use -- I mean the scanning machine.
And, what kind of software did you use to generate FEM mesh using the sacnned
surface?
In general, the scanning result will be some 'point cloud'. I wonder how to
generate FEA mesh by using this point cloud.
Any suggestion will be |
|
C*******e
发帖数: 25 | 6 【 以下文字转载自 ME 讨论区 】
发信人: CandyCode (CandyCode), 信区: ME
标 题: Can anyone shed some light on oop for FEM, i.e. C/Fortran vs C++ ?
发信站: BBS 未名空间站 (Tue Aug 10 21:07:16 2010, 美东)
It seems that object-oriented FEM packages are quite popular these
days. I am not quite familiar with C++ for numerical computational
purpose, and trying to decide whether to invest my time in it. So can
anyone here help to shed some light on this topic, pros and cons? Tons
of thanks! |
|
Y*******m
发帖数: 744 | 7 【 以下文字转载自 JobHunting 讨论区 】
发信人: Yanbeanmm (hahaha), 信区: JobHunting
标 题: ANSYS FEM at Semicon Area
发信站: BBS 未名空间站 (Wed Aug 4 16:48:31 2010, 美东)
We are currently looking for someone very familiar in this area through
practical application of tools such as ANSYS, COMSOL and other FEM tools to
solve practical problems in semiconductor technology at various scales of
interest. For example, we are aggressively pushing the technology in NAND
cells – scaling well below 20nm. At these nano-scales, st |
|
k*****a
发帖数: 1518 | 8 【 以下文字转载自 JobHunting 讨论区,原文如下 】
发信人: mainstreet (nethan), 信区: JobHunting
标 题: Ph.D in control or FEM?
发信站: Unknown Space - 未名空间 (Tue Mar 8 17:35:30 2005) WWW-POST
HEY, FOLKS
doing a PH.D in control or FEM
both in mechanical engineering.
which one is easier to find a job?
thanks!
mainstreet |
|
Y*******m
发帖数: 744 | 9 【 以下文字转载自 JobHunting 讨论区 】
发信人: Yanbeanmm (hahaha), 信区: JobHunting
标 题: ANSYS FEM at Semicon Area
发信站: BBS 未名空间站 (Wed Aug 4 16:48:31 2010, 美东)
We are currently looking for someone very familiar in this area through
practical application of tools such as ANSYS, COMSOL and other FEM tools to
solve practical problems in semiconductor technology at various scales of
interest. For example, we are aggressively pushing the technology in NAND
cells – scaling well below 20nm. At these nano-scales, st |
|
Y*******m
发帖数: 744 | 10 We are currently looking for someone very familiar in this area through
practical application of tools such as ANSYS, COMSOL and other FEM tools to
solve practical problems in semiconductor technology at various scales of
interest. For example, we are aggressively pushing the technology in NAND
cells – scaling well below 20nm. At these nano-scales, stress in and
around the active area can dramatically influence device characteristics.
We are also pursuing various 3-D interconnect projects, in |
|
a********e
发帖数: 12 | 11 请问坛子里有谁用过Comsol multiphysics fem software，或者认识这个公司上班的人
的？有问题要咨询下，非常感谢同胞的支持！我的email: k*********[email protected] |
|
w****r
发帖数: 67 | 12 Matlab编程计算光波导（激光器的谐振腔和光放大器的光腔都是光波导结构）
中的电磁场的分布, 计算三维结构光波导中的电磁场的分布，用到时域有限差分法（
FDTD）或是有限元方法（FEM）
以我现在的能力，改编程序还行，但要我从头编程还是没有这个能力。
I have searched using google.com, but couldn't find one.
Can anybody be kind enough to share some information?
Thanks a trillion! |
|
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l**********u
发帖数: 64 | 14 If you are interested in reviewing an article on FEM analysis of material
properties, feel free to send me a note. |
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w**d
发帖数: 2334 | 15 does anybody have some experience with the 3D FEM(unstructued mesh)
code?
I am wondering how complicated it would be if I start from the very
beginning, i.e., generate the mesh(from some software) and reading
the mesh(my own code). And the equation is non-linear elliptic equation.
Is that reasonable to be a project of MS degree? Any suggestion is highly
appreciated. |
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t*****r
发帖数: 448 | 16 and how "huge" will your model be?
I finished my MS in china on 3D FEM programming, in the end of the
programming, I found out PC is too weak to run my program. Hard drive was not
big enough, and the CPU took it forever to ...
BTW: I used 20-node 3D cubic elements, plus 9-node shell elements and 3-node
beam elements. |
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w**d
发帖数: 2334 | 17 Anybody has some sample code for 3D FEM? Have no experience with 3D
programming. No idea where to start. Thanks for any suggestions. |
|
c***r
发帖数: 1570 | 18 求审稿 计算力学，FEM, FVM, FD, MD, 谱方法，固体，电磁
对计算和数值方法有深入的认识，phd刚毕业，去工业界了，不做研究了，但是想保持
对这个行业的铭感度，了解最新的研究方向，也是个人兴趣。
之前没有审过稿，但是会认真对待每一篇稿子的。
请投条，谢谢。 |
|
Y*******m
发帖数: 744 | 19 【 以下文字转载自 JobHunting 讨论区 】
发信人: Yanbeanmm (hahaha), 信区: JobHunting
标 题: ANSYS FEM at Semicon Area
发信站: BBS 未名空间站 (Tue Sep 14 13:11:18 2010, 美东)
contact me if you are interested and also pls submit your resume online.
MICRON is a global semiconductor company with more than 25,000 people.
We sponsor H1B and Greencard
Hopefully you are familiar with ANSYS and has some backgroud of
semiconductor and packaging
https://micron.taleo.net/careersection/10000/jobsearch.ftl?lang=en
search the job-number |
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b********t
发帖数: 36 | 20 For example, ANSYS, ABUQUS.
and how to do that?
have only elementary FEM background.
thanks. |
|
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h******l
发帖数: 112 | 22 No good research field in ME field,
but if you do FEM, it will be better than control. |
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b******e
发帖数: 165 | 23 please recommend some good FEM books. practical not foucs theory or specific
field. |
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k*****a
发帖数: 1518 | 24 【 以下文字转载自 Canada 讨论区 】
发信人: kangjia (康佳--红太阳), 信区: Canada
标 题: Job opening: Senior Engineering Analyst (FEM, ANSYS)
发信站: BBS 未名空间站 (Fri Jun 1 18:20:39 2007)
Senior Engineering Analyst (Montreal)
ROI Engineering is the Canadian ANSYS channel partner designated to serve
the local market and to respond to the needs of current ANSYS customers. Our
mission is to provide quality engineering services to our diverse client
base that will ultimately provide them with a Return On Investment.
ROI Enginee |
|
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r***l
发帖数: 9084 | 26 应该用FEA吧. 很少见到叫fem,虽然都是指一个东西. |
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f*****k
发帖数: 195 | 27 我现在做的是mass transport, fluid dynamic, reation engineering, enzym
kinetics ....
我上过一门introduction to FEM. 学了一些 plane stress, plane strain, and heat transfer的东西，也用Algon作了一些model，但是肯定是不如专门做这个的精通了。
我看到大家提供的网站要的人主要是做machenics的，照我的经历看，有可能转到
这个方向上去么？ 谢谢
BTW，我是PhD |
|
r***l
发帖数: 9084 | 28 叫fea名字更popular, 虽然和fem是一个东东
fea其实也不是很好找工作, ansys之类的软件凑合学学教程会不难,但要想真正熟练和
精通的确比较辛苦. |
|
k*****a
发帖数: 1518 | 29 EMC-SQ is hiring a mechanical engineer, education should be Ph.D.,
experience in FEM and fracture mechanics is preferred.
Details in http://www.emc-sq.com/listings.htm. |
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k*****a
发帖数: 1518 | 30 EMC-sq is hiring,
requires Ph.D. degree, proficient in FEM in structural and fracture
mechanics.
details:
http://www.emc-sq.com/listings.htm
Job Title: Research Engineer: Job # OHZT1107
Job Location: Columbus, OH 43221
Job Duties:
Conduct R&D on engineering structures with non-linear FEA simulation in
structural and fracture mechanics. Develop and write proposals to obtain
funding for R&D. Full Time.
Requirements:
PhD in physics, mechanical engineering, structural engineering or |
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C*******e
发帖数: 25 | 31 It seems that object-oriented FEM packages are quite popular these
days. I am not quite familiar with C++ for numerical computational
purpose, and trying to decide whether to invest my time in it. So can
anyone here help to shed some light on this topic, pros and cons? Tons
of thanks! |
|
c***r
发帖数: 1570 | 32 求审稿 计算力学，FEM, FVM, FD, MD, 谱方法，固体，电磁
对计算和数值方法有深入的认识，phd刚毕业，去工业界了，不做研究了，但是想保持
对这个行业的铭感度，了解最新的研究方向，也是个人兴趣。
之前没有审过稿，但是会认真对待每一篇稿子的。
请投条，谢谢。 |
|
o*********n
发帖数: 706 | 33 目前在EE行业，用FEM解PDE，没有任何finance背景，将来跳到investment bank或者
hedge fund company或者其他合适的finance的公司，发展前景如何？是单纯的
developer还是设计算法？收入如何？（收入考虑地域性差异） |
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t******d
发帖数: 376 | 34 ''一般公司里做有限元吗？''
NO, they do not make/program FEM, but some of them use FEM.
The title I read is "各位再工业界的同行，有限元用的多不？". So my
understanding is that he is asking if FEM is used, whereas you are saying "
一般公司里做有限元吗", which can be interpreted as "make/program"
设计而
正做FEM要先大笑後三叹。 |
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t*****o
发帖数: 74 | 35 来自主题: Computation版 - 一个困惑？ 从提出一个观点到实现不知道要多少年了
也就是说现在FEM是主流， 到被这个牛人的方法所替代(也不知道这个牛人有没有提出新
方法)也不知是什么时候的事了
何况也许牛人所说的限制和你研究的课题根本没关系了。。。
至于books about FEM， 你们系有没有FEM课？ 有的话， 看你们系的FEM用的教材就足够
了
有
是
少
expensive
会 |
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F*****e
发帖数: 270 | 36 看来你是个外行的人，无知者无畏。
就像搞实验的，用过一两次Fluent就以为自个会CFD了。有个这样的人曾跟我说，你会做个网格，别人也会做个网格，不就用个软件吗？有什么特别的？殊不知做网格也有水平、经验的区别，质量高低，数值耗散大小，是否提高速度、节约内存之分。做得差的网格不别说运算精不好，甚至结果都出不来。FEM网格做得不够，不断加密就是了，CFD能随便这吗？FEM一般是做固体内部的分析，而CFD做的往往是包裹在固体部件外面的
所有空间的流动分析，运算区域的外形的复杂程度就高不少，固体部件不过其中一个小小边界条件而已。
未听说过FEM程序要跑上一个星期的，但是在cluster上跑上个星期甚至月份的CFD应用多的是。简单的CFD和FEM程序我都写过，直接体会就是CFD难多了，你要是想真正比较，先去写了代码结果调试出来再发话。就CFD实践应用来讲，我没有具体资料，但从经验我敢说，不管什么用户水平，世界上９０％的Fluent运算最后是以发散失败告终的，每一个成功的结果都是无数次反复修改网格和重新设置后才出来的，除非是简单的教学
范例。
如果CFD的稳定性数学分析那么简单，为什么当初需要冯。 |
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e*l
发帖数: 37 | 37 好的，你说我是外行就外行吧，但请不要轻易说别人无知。
我是从来没有用过诸如fluent的软件，也没看见过周边有人用过几次fluent就自
认为会CFD了。对于复杂边界区域，可以采用分区降低复杂度，采用非结构性网格
适应复杂边界，或者采用不同区域不同分辨率的简单的差分网格来简化问题，当
然也有采用结构性网格（比如贴体曲线坐标）解决一些简单问题，但这个也不是
CFD专有的。弹性力学计算没你想的这么简单，计算区域也有非常复杂的，比如桥
梁结构（光是建模就能让人吐血），另外网格也不是你说的不断加密就能解决问
题，网格划分不好，计算结果也会有问题，对于网格这方面，未必比CFD就容易。
对于特定的问题，如何进行网格划分都有一些约定俗成的东西，自己拍脑袋瞎琢
磨当然不行。所以对于网格问题，难点不在于如何使用网格划分软件，也不在于
网格划分的算法，而在于对于不同的问题如何选取合适的网格，这个就得凭经验
了。
另外纠正你一个问题，FEM是指有限单元法，CFD的软件中有很多是采用的FEM方
法，包括taylor的那三卷FEM金典，第三卷就是讲如何使用FEM求解流体力学问
题，第二卷则是针对固体力学。flu |
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m******3
发帖数: 983 | 38 Component Packaging Engineer
Job Number: 45900366
Job Summary
We are looking for a self-motivated individual who is proficient in FEM
simulation with multi-year hands-on experience of FEM software ASNSY or
ABAQUS. The individual should also be an expert programer of numerical
simulation tools, such as Matlab and Python.
Description
• Numerical modeling of the stress and deformation of component
packages to provide comprehensive understanding of chip-package interaction
and package-board in... 阅读全帖 |
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C*S
发帖数: 1658 | 39 http://careers.asce.org/jobs/4664670/bridge-research-engineers
Professional Service Industries, Inc., as a company and as individuals, has
a clear vision of the future and our place in it. We seek individuals who “
Choose to Lead” in the bridge engineering and research profession – people
who can step-up and make an impact in the marketplace and at job sites with
their professionalism, integrity, dedication, and technical abilities. We
seek to hire and retain the best and brightest people availa... 阅读全帖 |
|
C*S
发帖数: 1658 | 40 http://careers.asce.org/jobs/4664670/bridge-research-engineers
Professional Service Industries, Inc., as a company and as individuals, has
a clear vision of the future and our place in it. We seek individuals who “
Choose to Lead” in the bridge engineering and research profession – people
who can step-up and make an impact in the marketplace and at job sites with
their professionalism, integrity, dedication, and technical abilities. We
seek to hire and retain the best and brightest people availa... 阅读全帖 |
|
x*****u
发帖数: 3419 | 41 惭愧，什么是inf－sup条件？
另外，能不能简要介绍介绍为什么fem处理边界容易。我知道fem可以使用三角网格，是因
为这个吗？
另外一个关于精度的很奇怪，我听说过长方形网格精度高于三角形网格，但是又看到似乎
fem的结果精度一般又高于fdm。不知道这种印象对否？ |
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k*****a
发帖数: 1518 | 42 elementry or advanced?
in mechanical or civil?
r u interested in mathematical FEM or applied FEM?
there are tons of FEM books around. |
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r********o
发帖数: 1423 | 43 The ability to run simulation via software package does not mean the
understanding of the FEM theory and the delicate difference in FEM.However,
the advanced level job opennings in FEM are already filled.
for |
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m********8
发帖数: 123 | 44 finite element method is an old retard;
you don't know this, simply because you are solving some easy problems;
i could present in journal papers some direct comparisons between other
three methods versus fem, and show how retard fem is, and shed some lights
what makes fem so retard;
but i don't want to do so;
coz i don't want to wake them up |
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b***k
发帖数: 2673 | 45 FEM is always a very hot topic in PDE numerical solution.
In finance, I don't think it is commonly used, which I think because all
the PDE models in finance are too simple in the point view of FEM category.
But I do know some people researched on FEM application in finance.
Hope this help. |
|
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x*******o
发帖数: 378 | 47 传说中的美国是发达国家中寿命最低的，看看1989－1991的数据，
total male total male white male black female total fem white fem
black
75.37 71.83 72.72 64.47 78.81 79.45 73.73
看得懂数据不？近年分种族的统计我没找到，应该比例差不多
2011年美国平均78岁多，正好排在台湾前面，台湾是全民键保的，还在美国后面，说明
什么？说明医疗体系并不是唯一的决定因素 |
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w********9
发帖数: 8613 | 48 这是Shorter Oxford American English Dictionary第五版列出的与德语或者日耳曼语
相关的英语词根或词汇。
-at, suffix2. + -dom, suffix. + -ed, suffix1. + -ed, suffix2. + -en, suffix1
+ -en, suffix2 + -en, suffix5 + -en, suffix6 + -er, suffix1. + -er, suffix3
. + -er, suffix5. + -est, suffix1. + -est, suffix2. + -et, suffix2. + -eth,
suffix1. + -hood, suffix. + -ing, suffix1. + -ing, suffix3. + -ish, suffix1.
+ -kin, suffix. + -le, suffix1 + -le, suffix3 + -less, suffix. + -ling,
suffix1. + -ling, suffix2 + -ly, suffix1. + -ly, s... 阅读全帖 |
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W*****d
发帖数: 4196 | 49 Dr. Susan Xiao-Ping Su
President of Tri-Valley University
Tri-Valley University TVU
E-mail: s*[email protected], s***[email protected]
EDUCATION
Ph .D. Department of Mechanical Engineering, University of California at
Berkeley, 2001.
Major: Design; Minor I: Microscale Heat Transfer; Minor II: Integrated
Circuit Technology.
Dissertation: Compliant Microleverage Mechanism Design for MEMS Application
Dissertation Advisors: Prof. Alice M. Agogino; Prof. Tsu-Jae King, Prof.
Dennise K. Lieu
M. S... 阅读全帖 |
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A***D
发帖数: 64 | 50 The AcuSolve group is seeking talents for multiphase flow solver development
. Please see the following:
Location: Mountain View, CA
Job Description:
We are looking for an expert in the development of simulation software for
multiphase flows. We are a team of highly-motivated CFD professionals. This
is an opportunity to join AcuSolve's core development team in Silicon Valley
California and play a significant role in the development of Altair's next-
generation multiphase technology.
Altair Acu... 阅读全帖 |
|
