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Modeling Cracks with ANSYS Maximizing the ROI on your ... - PADT

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June 18, 2010 The Focus Issue 74<br />

(<str<strong>on</strong>g>ROI</str<strong>on</strong>g>, C<strong>on</strong>t...)<br />

up just <strong>on</strong> speed. Often times capacity is<br />

more important than raw compute speed.<br />

Look at <str<strong>on</strong>g>the</str<strong>on</strong>g> overall time it takes to run jobs<br />

including file transfers, I/O to disk, being<br />

able to run in core and actual CPU speed.<br />

In larger organizati<strong>on</strong>s <strong>PADT</strong> recommends<br />

a tiered approach to hardware: good large<br />

desktops, departmental servers for medium<br />

sized jobs and a corporate cluster if you need<br />

to solve lots of problems or big <strong>on</strong>es. This<br />

gives <strong>your</strong> team greater flexibility and provides<br />

<str<strong>on</strong>g>the</str<strong>on</strong>g> right machine for different jobs.<br />

Ano<str<strong>on</strong>g>the</str<strong>on</strong>g>r suggesti<strong>on</strong> is to work closely <str<strong>on</strong>g>with</str<strong>on</strong>g><br />

<strong>your</strong> IT department to make sure <str<strong>on</strong>g>the</str<strong>on</strong>g>y understand<br />

that you cannot use a "standard build."<br />

You can’t show pictures of Ariz<strong>on</strong>a <str<strong>on</strong>g>with</str<strong>on</strong>g>out <strong>on</strong>e of our spectacular sunsets<br />

We see many of our customers hamstrung by <str<strong>on</strong>g>the</str<strong>on</strong>g> fact that <str<strong>on</strong>g>the</str<strong>on</strong>g>y can <strong>on</strong>ly get a machine that is a PLM or CAD standard box and it does<br />

not have <str<strong>on</strong>g>the</str<strong>on</strong>g> RAM or disk capacity needed for <str<strong>on</strong>g>the</str<strong>on</strong>g>ir analysis.<br />

Software for CAE is <str<strong>on</strong>g>the</str<strong>on</strong>g> <strong>on</strong>e area <str<strong>on</strong>g>the</str<strong>on</strong>g> usually gets a lot of focus, and it deserves it. But not just for <str<strong>on</strong>g>the</str<strong>on</strong>g> CAE software itself. It is important<br />

to also focus <strong>on</strong> utility software that leverages <strong>your</strong> CAE software and makes <strong>your</strong> users more productive. As an example, we<br />

recommend that all CAE users have access to a CAD tool or some sort of geometry translate/repair tool. Often times <str<strong>on</strong>g>the</str<strong>on</strong>g> tool imbedded<br />

in <strong>your</strong> CAE software is not powerful enough and waiting <strong>on</strong> some<strong>on</strong>e from <str<strong>on</strong>g>the</str<strong>on</strong>g> CAD group can kill a schedule.<br />

O<str<strong>on</strong>g>the</str<strong>on</strong>g>r utility software that every user should have include:<br />

· MS Office - do not waste time trying to get some o<str<strong>on</strong>g>the</str<strong>on</strong>g>r office tool to work. Just suck it up, pay Microsoft <str<strong>on</strong>g>the</str<strong>on</strong>g>ir blood m<strong>on</strong>ey,<br />

and be productive<br />

· Text Editor - Invest in a good text editor for looking at output files, writing scripts, and viewing text informati<strong>on</strong>. These d<strong>on</strong>'t<br />

cost much and getting a nice <strong>on</strong>e can save hours every m<strong>on</strong>th.<br />

· Image Editor - Making pretty pictures is a large part of a CAE user's time. Not having a good image tool can waste hours in<br />

n<strong>on</strong>-value added fiddling trying to get pictures just right. Get PaintShop Pro, Photoshop, Gimp or some o<str<strong>on</strong>g>the</str<strong>on</strong>g>r tool and learn how<br />

to use it.<br />

· Virtual Meeting Tool - Share <strong>your</strong> data easily and quickly <str<strong>on</strong>g>with</str<strong>on</strong>g> <strong>your</strong> customers, support provider and co-workers <str<strong>on</strong>g>with</str<strong>on</strong>g> a tool like<br />

WebEx, iLinc, or go2Meeting<br />

· Linux Shell <strong>on</strong> Windows, Virtual Windows <strong>on</strong> Linux - If you have a multi-OS envir<strong>on</strong>ment, invest in emulators so you are not<br />

always working around <str<strong>on</strong>g>the</str<strong>on</strong>g> system.<br />

Process<br />

Last but certainly not least is process. One of <str<strong>on</strong>g>the</str<strong>on</strong>g> problems <str<strong>on</strong>g>with</str<strong>on</strong>g> CAE is that <str<strong>on</strong>g>the</str<strong>on</strong>g>re are so many different ways to solve a problem, and<br />

<str<strong>on</strong>g>the</str<strong>on</strong>g>y all involve detailed steps so it is easy to lose <strong>your</strong> way. Taking <str<strong>on</strong>g>the</str<strong>on</strong>g> time to establish standard processes can avoid reinventing <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

wheel. They keep users <strong>on</strong> task, allow productivity gains to be captured, and provide a great guide to new or occasi<strong>on</strong>al users. The most<br />

important benefit of having well documented process is <str<strong>on</strong>g>the</str<strong>on</strong>g> repeatability of <str<strong>on</strong>g>the</str<strong>on</strong>g> work.<br />

Like a lot of good things, an organizati<strong>on</strong> can go way overboard in this area. Processes need to be flexible and adaptable to real world<br />

circumstances. Our experience is that if a company has rigid processes, engineers often "go rogue" simply out of spite. A good<br />

compromise is to standardize <str<strong>on</strong>g>the</str<strong>on</strong>g> steps in <str<strong>on</strong>g>the</str<strong>on</strong>g> ideal process in detail, and give guidelines for <str<strong>on</strong>g>the</str<strong>on</strong>g> overall process. This allows users to<br />

reuse what applies and adapt as needed. That same experience has taught us <strong>on</strong>e more thing about <str<strong>on</strong>g>the</str<strong>on</strong>g> effective use of processes - <str<strong>on</strong>g>the</str<strong>on</strong>g>y<br />

are most effective in companies where a pers<strong>on</strong> who is reas<strong>on</strong>able but str<strong>on</strong>g willed is given <str<strong>on</strong>g>the</str<strong>on</strong>g> authority to collect, maintain and enforce<br />

processes.<br />

General Recommendati<strong>on</strong>s<br />

These four areas of focus should help any organizati<strong>on</strong> that uses CAE be more efficient and get more value from <str<strong>on</strong>g>the</str<strong>on</strong>g>ir CAE investment.<br />

Think: GOALS, PEOPLE, TOOLS, PROCESS and try and not focus <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g> minute details of applying CAE. Also, try and focus <strong>on</strong> <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

things you can change. Goals are <str<strong>on</strong>g>the</str<strong>on</strong>g> easiest but if you can make changes to <strong>your</strong> people, that may deliver <str<strong>on</strong>g>the</str<strong>on</strong>g> best results. Try and get<br />

<strong>your</strong> whole organizati<strong>on</strong>, users, project engineers, management, thinking about CAE as a tool instead of as a black box or a magic bullet.<br />

Ano<str<strong>on</strong>g>the</str<strong>on</strong>g>r recommendati<strong>on</strong> that we have seen generate good results is to build a positive relati<strong>on</strong>ship <str<strong>on</strong>g>with</str<strong>on</strong>g> <strong>your</strong> IT team. We have seen<br />

companies that fight <str<strong>on</strong>g>with</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g>ir IT, get nowhere, and end up not having <str<strong>on</strong>g>the</str<strong>on</strong>g> compute resources <str<strong>on</strong>g>the</str<strong>on</strong>g>y need to be efficient. (C<strong>on</strong>t. <strong>on</strong> pg. 5)<br />

The Focus is a periodic publicati<strong>on</strong> of Phoenix Analysis & Design Technologies (<strong>PADT</strong>). Its goal is to educate and entertain <str<strong>on</strong>g>the</str<strong>on</strong>g> worldwide<br />

<str<strong>on</strong>g>ANSYS</str<strong>on</strong>g> user community. More informati<strong>on</strong> <strong>on</strong> this publicati<strong>on</strong> can be found at: http://www.padtinc.com/epubs/focus/about<br />

www.padtinc.com 4 1-800-293-<strong>PADT</strong>

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