Feature Articles
01/22/2013
Altair’s Role in Advancing Composites in the Auto Industry: Seven Questions to David Mason
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David Mason - Vice President, Global Automotive, Altair |
Success in developing the new generation of cars and trucks has demanded advancements in many arenas, including powertrains, fuels, materials, manufacturing methods and design. Computer-aided engineering tools from Altair have advanced as well allowing design engineers to improve vehicle efficiency and performance while at the same time lightening the vehicle structure. Laminate composites are beginning to play a larger part than ever in vehicle design, and Altair offers the software tools that are enabling composites to become a key material across the auto industry. Altair’s Vice President of Global Automotive, Dave Mason offers answers to some of the most important questions about Altair’s role in the use of composites for today’s vehicles.
Learning Spotlight
01/22/2013
Composites Free Size Optimization
OptiStruct offers a comprehensive optimization package aimed to simplifying the design of composite structures. This package includes three main optimization phases and associated techniques: Concept (free size), Dimension (size) and Sequence (shuffling). This video will focus on phase one, concept design through free size optimization.
Featured Tip and Trick
01/23/2013
Advanced Entity Selection in HyperMesh
This new section will feature each month a short demo video showing techniques to save you time and make modeling, meshing and post processing easier. The Tips and Tricks that will be shown are simple techniques that are the “secrets” of our power users. This month we start showing some of the advanced entity selections in HyperMesh.
Customer Spotlight
01/18/2013
QinetiQ Keeps the Army’s Kiowa Copter Flying Lighter and Longer
A large proportion of Army aircraft are legacy platforms. Program managers of these aircraft are challenged to integrate new technology into these older platforms to enable them to meet the constantly expanding demands of today’s missions. These new devices and systems, however, often add weight to the vehicle or otherwise impact mission profiles. To sustain aircraft performance, weight reduction methods need to be adopted for aircraft components if technology insertions are going to continue.
Learn more about how QinetiQ Keeps Copters Flying Lighter and Longer
HW Alliance Partner Spotlight
01/18/2013
Partner Alliance Sneak Peek: What’s Coming in 2013
New partners launching:
1. January: Michigan Engineering Services (MES) will add their mid- to high-frequency vibration and acoustic simulation tool, Energy Finite Element Analysis (EFEA).
2. February: Quantech ATZ will make their simple and quick casting process simulation software, Click2Cast, available.
Script of the Month
01/22/2013
Script of the Month
Script Exchange
In July 2011, the Macro Exchange, which existed on our web site for several years, had a major facelift and was renamed into the Script Exchange. The aim was to provide new layouts and new tools for searching, posting and reporting issues. Additionally, an internal script contest, which took place over 6 months, enriched the database with many new scripts.
Tips & Tricks
01/22/2013
Topology revision: Advanced remesh option when using Quick Edit
The mesh subpanel found in the Options panel allows you to change default meshing behavior, such as when performing an automatic re-mesh of geometry that has been edited to change its topology. Mesh subpanel can be found in Preferences Meshing options.
Topology revision is one of the parameters in the mesh subpanel which determines what to do when you change the model geometry’s topology.
Topology revision includes:
1) Keep mesh: keep the model’s existing mesh.
2) Delete mesh: delete the model’s existing mesh.
3) Remesh: automatically remesh the model using default values.
4) Advanced remesh: maintains node associations with surfaces (normal remesh may not always retain node/surface associativity, which may result in orphaned elements).
Tips & Tricks
01/22/2013
SYSSETTINGS-SAVE FILE
The SYSSETTING command can be used in the I/O Options section to alter system settings. Most of these options can also be specified in the config file (hwsolver.cfg).
Panel Description:
To access SYSSETTINGS within HM11.0, go to Analysis > Control cards > “SYSSETTINGS” panel OR
Tools pull down > Create cards > S > SYSSETTINGS:
SAVEFILE controls behavior of solver when output file with the same name already exists when program starts. There are three ways to control the generation of output file from solver.
SAVEFILE = ALL will prevent overwriting output files by renaming an existing file by adding numeric suffix, e.g. jobname.h3d will be renamed to jobname_nnn.h3d where nnn represents the smallest number for file which does not exists yet.
SAVEFILE = OUT (default) will preserve only .out and .stat files.
SAVEFILE = NONE will allow the solver to overwrite any existing file.
File Location:
The configurations file location on Windows and Linux machines:
Windows: C:\Program Files\Altair\11.0\hwsolvers
Linux: ${ALTAIR_HOME}/hwsolvers directory
Note : All the SAVE options are targeted to be made available from HyperMesh 12.0.
For all versions below HW11.0.130: SAVE FILE= ALL works irrespective of the option set in the config file.
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