我们为什么用workbench？
既然有了ansys这么强大的分析软件，我们为什么还要用workbench，到底是什么原因呢？今天终于找到了点感觉。
我要分析的几何模型都是从proe中来的，都是别人做好给我的，没的选择，就因为这个，我在处理模型上不知浪费了多少时间，试过了无数的方式，就差没把ansys拆开看看里面到底是什么了。今天用了workbench，把模型放进去，没有丁点错误，这种感觉真是没法形容，但就几何模型接口来讲，我们也该用workbench，有时是对那些象我一样，为模型转换而极其苦恼的人来说。
不知大家都看重了workbench什么呢？现在对workbench的了解还不深，跟大家探讨一下
[ 本帖最后由 bixiangqiu 于 2007-10-18 17:08 编辑 ] Top 10 Reasons to Use Workbenchby Eric Miller
http://www.padtinc.com/epubs/focus/2005/0042_1010/imgs1/fig1.jpgWhile preparing for a recent user group meeting in California, someone who was attending asked if we could present some good reasons for him to use Workbench more. After some thought and discussion, we came up with the follow list of reasons why PADT uses Workbench, and why we recommend it to our users.
10: Shorter and Shallower Learning CurvePeople just seem to learn Workbench faster and are more productive sooner. This is especially true for younger engineers who are new to FE analysis and have a strong background with modern parametric CAD packages such as SolidWorks or Solid Edge.
9: Significant Say in GrowthWorkbench is developing and growing every day. For many in the user community, this is the first time that they can participate in guiding the development of a code that, in our opinion, will soon dominate the CAE market. This is everyone’s opportunity to speak up and make an impact.
8: Automatic Report CreationThe process of creating reports for an analysis can sometimes take longer than the analysis. On occaision, schedules are so tight that no report is created at all, or only the results are captured. Both of these issues are addressed with the powerful automatic report generation feature in WB. Using this tool, companies can set up standardized reports, force the capture and retention of key pieces of information, and drastically reduce the amount of time required to make a report.
7: Built-in Process StandardizationWhen you start up WB, you may have noticed some stuff over on the right side of the screen. This is where wizards live. The product ships with some basic step-by-step guides. Many users see these as tools for helping low-end users do analysis, which they are in fact good for. But you can also create your own very sophisticated wizards that can lock down standard processes and ensure that key steps are carried out.
6: New Stuff is Going into WBThe cold, hard reality is that many of the new pre- and post-processing features that ANSYS, Inc. is creating to meet user requests are going into WB.
[*]Virtual topology[*]Advanced solid modeling[*]“Engineering” loads[*]GAP meshing for field problems[*]New meshing technology5: Less “Reinventing the Wheel”Over the years, ANSYS users have gotten very good at writing macros to automate processes and do some pretty fancy things. Most of us enjoy this and it is a large part of our job satisfaction. But if you look at it honestly, hundreds of users around the world are “reinventing the wheel,” doing the same thing over and over again. With WB many of these common tasks are being built into the code from the ground up. It also includes tools like the Engineering Data tab that allow you to save things like material properties and time-dependent loads and share them with other users through a library.
4: Not a Technology that You Get Stuck InOne of the greatest fears that keeps users from trying Workbench is a concern that if they start a job in WB, they will have to stay in WB until they are done. Thanks to some open-minded planning by ANSYS, Inc. developers, you can jump out of WB at any point after you have meshed and finish up your job in ANSYS. The only downside is that geometry does not go with you, but we have not found that to be a serious drawback. For example, one can specify a group of surfaces as a named component in WB, and thus all associated nodes of the underlying WB mesh are grouped into a component on the ANSYS import for easy reference.
3: Setting Stuff Up Is FasterPADT's experience is that it’s just a lot faster to set stuff up in Workbench. There are a lot of reasons for this, but some of the key ones that we have seen are:
[*]Consolidation: many tasks have been combined into one[*]CAD associativity and parametrics[*]Object paradigm (you click on something in the tree then operate on it)[*]Context sensitive menus and icons reduce clutter and “hunting” for commands[*]Simplified processes[*]Automatic Contact Detection2: Robust MeshingFar and away the most common reason for PADT to use Workbench is to mesh poor geometry. Our single largest productivity hit in doing analyses was dealing with geometry that had gaps or slivers in it. Workbench is much better with this sort of thing, and the robust mesher has grown to have many of the controls that users have asked for, and even more can be added.
1: CAD AssociativityJust edging out “Robust Meshing” is that Workbench models can be associative to CAD models. This can be a huge savings and is really the one thing that Workbench does so much better than any other solution out there. It not only delivers huge savings in time and effort, but also allows you to easily do studies that you would never have considered before.
Next month: “Meshing Techniques your Man Wants from You but is too Embarrassed to Ask For”.
http://www.padtinc.com/epubs/focus/common/focus.asp?I=42&P=article1.htm
[ 本帖最后由 北极熊甲 于 2007-10-23 21:40 编辑 ] 我认为还是WORKBENCH比较容易使用
1.界面符合WINDOWS操作界面习惯
2.流程清晰
3.很多地方傻瓜化
4.教程简单易懂 最开始接触AWE是去年同学介绍使用的，那是在老师给了一个新的课题之后，让我用ANSYS做，虽然以前学过ansys classic，那都是跟着教程走的，要是真让我自己做一个东西，感觉还是不行，愁的不行。嗨！经过同学的提醒之后，再加上他亲自给我演示了一会，觉得做个分析太简单了，不用想在经典界面里建模都得好几天，而且没有后退命令，要是错了就得从头来，悲哀的。
学习AWE也时间不长，但是就是经同学那么一演示，我就高兴的不行，它的项目级仿真参数管理和完整的仿真向导系统，它的CAD式的建模和自动化式的网格划分，它的自动接触探测和CAD系统之间的双向链接，它的、、、、、其实还有很多没发现的优点呢
缺点嘛，目前感觉没有LINK单元，希望以后能加进来吧
最后希望C07越来越好，我会常驻此处的。:kiss: 我是最近才接触wb
感觉wb的和cad软件的数据传输真的不错
我前段时间用catia V5画了一个很复杂的装配件 直接导入到icem中老是出问题
试着用先用wb导入 再直接调用icem 效果很不错 看来大家的兴趣各有所在，因为我要做的工作是工程应用，都是拿别人设计好的东西作分析，而分析的类型要求都不高，所以目前对CAD转换成CAE这块格外关注，请问david_liugc ，你说的“ANSYS11和CATIA也是无损导入的”是不是说ANSYS11和CATIA之间在转换时成功率也比较高，那么ansys11和proe之间呢，能不能达到proe和workbench那种程度呢？ 欢迎大家积极发表自己看法，只要不是灌水，一律加分鼓励。 我也来说下把
我是因为要用到CFX算出来的载荷才接触到WORKBENCH的
我觉得有2个方便的地方
一个是WORKBENCH的接触比CLASSIC方便，自动生成的，
还有一个是画网格，我是新手，所以觉得WORKBENCH的MESH还是很不错 ，至少比CLASSIC容易上手
其他么，ANSYS11和CATIA也是无损导入的，所以CAD转CAE这一块我没觉得啥
当然WORKBENCH也有很多不好的地方，比如说相对于CLASSIC虽然容易上手些，但是能处理的东西比较少，而且它的COMMAND和CLASSIC还有一些不一样的地方，需要修改一些地方，对于我这种人来说稍微要麻烦些。 我觉得WORKBENCH的疲劳分析比较好用,各项功能含义比较好理解.ANSYS做疲劳太费劲了,开始看一个例子,看好久还是没弄懂,而WORKBENCH只要看过一个例题就可以上手了:) 我用WORKBENCH的理由:
1.ANSYS Workbench与CAD系统的实体及曲面模型具有双向连结，其导入CAD几何模型之高度成功率
2.Workbench具有功能强大与易于使用的特点，它的界面非常直观
3.WBE只是ANSYS的前台界面。如点击“Solve”，它会编写一个进行模型分析的APDL输入文件，以批处理的方式发送到ANSYS中进行运算 回BIZIANGQIU：我机子上ANSYS版本11，CATIA VAR16，导入ANSYS用CATIA V4格式，基本上无损。 david_liugc ,我还想问下，你的模型复杂程度怎样？曲面多吗？ 不是很复杂的，飞机机翼而已，就是有时小面很讨厌 從ANSYS 5.7到現在9.0之後才有workbench出現
以前總是要設定一大堆步驟...選擇元素...類型...在MECH在求解...
步驟都耗費許多時間......
現在是講求效率的社會...
公司企業也不可能給你這麼多時間去求一個解．．
現在workbench出現大大縮短了求解設定的時間
雖然workbench做出來的解也許沒傳統的正確許多...
但是已經可以判別出來大概了....
現在也漸漸接受了workbench...
因為它真的很好用
回复 #10 maxda68 的帖子
雖然workbench做出來的解也許沒傳統的正確許多...Workbench跟Classic用的是同一个core，所以结果应该是一样的。 不知道Workbench为何物,谁给来点简介？ 原帖由 pfsr 于 2007-10-19 23:19 发表 http://www.simwe.com/forum/images/common/back.gif
雖然workbench做出來的解也許沒傳統的正確許多...
Workbench跟Classic用的是同一个core，所以结果应该是一样的。
應該這樣說才對....
Workbench他是自動選元素MECH...
而Classic是USER挑選元素MECH....
所以球出來的解不一樣... Workbench可以修改默认的单元，Classic也可以用跟WB默认一致的单元。 个人认为WORKBENCH建模参数化，大大的有点，而后导入ansys分析！俺目前还是习惯在ansys里分析求解，呵呵！ classic最让人诟病的就是他的操作性很差，而且在导入3D模型的时候也比较费事，有时为了模型的修改得花费很大得精力。
而Workbench，个人认为是提供给工程师使用得，要求的就是快，使用方便，不用那么多基础知识来铺垫，能快速提供给结构设计师做一个参考，比较方案。而且目前的ai*enviroment把平台做在一起，在文件统一管理上明显好了很多。 AWE的最大优点就是界面清晰,过程易于操作.
它的参数化可实现从CAD到CAE的参数驱动，特别在CAD中修改某个参数后，在CAE中只需Update即可，无需重新划分网格和加载。
它的优化可实现从CAE到CAD的参数驱动，还在摸索中。
但是也有一个最大的疑问：在AWE中是不是网格越密越接近真实情况？
感觉结果差异变化比较大，即本应变小反而变大了？？？
希望这方面有研究给支个招，多谢啦！ workbench为研究流固耦合问题提供了平台，
特别是simulation里面非常简易的固体边界设定方法和物质属性设定，这些是Fluent，所没有的，同时也简化了ansys比较难懂的命令话操作，毕竟我的重点不放在固体上，所以话很少的时间解决关键的问题，workbench帮我实现了。
对于我这种固体分析的生手，也可以很容易得到的固体分析比较完美的结果，这是让我非常高兴得地方