Tips & Tricks

Here you will find articles on how to solve specific issues related to ESI's software solutions. Missing ESI products will be added progressively. Each article has a short abstract which is accessible to everyone. As logged users you can see the full article with all attached screenshots, and you can post comments related to each article.

Quickscript for Double wall junctions
When creating a script to modify a double wall junction, running it may not affect results. If editing the script with GUI, then everything works.
Emna Ben Ali
Vibro-Acoustics
73

Path49 : Check boxes in Path49 does not work, why?
Check boxes in Path49 does not work, why?, This is due to the fact that the dialog code is old.
Emna Ben Ali
Vibro-Acoustics
14

Why does appending modes at import fail?
Why does appending modes at import fail?, One reason may be that you are trying to do spatial append.
Emna Ben Ali
Vibro-Acoustics
22

How is the angle alpha used in a hybrid line junction?
How is the angle alpha used in a hybrid line junction? It’s not. The angle is not taken into account, and it’s an existing enhancement (Enhancement #451) to clarify this.
Emna Ben Ali
Vibro-Acoustics
35

Note on memory issue for VA One on SUSE
(SLED= SUSE Linux Enterprise Desktop) We have been tracking an issue with SLED 11 SP 2 No handler for exception: ObjectStore internal error Fatal error Cannot allocate memory(errno = 12) mmap failed: reservation addr (nil), len 0x746a520000, prot 0, fd 4, share 1...
Emna Ben Ali
Vibro-Acoustics
10

Whats does ObjectStore internal error - No locks available - mean?
I'm getting this error when solving on Linus, what can be the cause: ObjectStore internal error <maint-0018-0021>misc osfs error <maint-0017-0014>misc osio error Fcntl (F_SETLK, F_RDLCK) /appl/vaone2013/CInterface_schema.adb: No locks available...
Emna Ben Ali
Vibro-Acoustics
3

Why can not  different users on a pc use the GRID module in VA One 2013?
Different users are using the VA One on a PC, each user logs in using their own ID. However, only the user can use grid BEM who installed Python Developer Kits. Why is that and what can be done?
Emna Ben Ali
Vibro-Acoustics
13

Radiation efficiency for a trimmed panel
How does VA One calculate radiation efficiency for a trimmed panel?, The process is that we compute a radiation efficiency analytically of the bare panel, then compute ...
Emna Ben Ali
Vibro-Acoustics
67
1

Getting the DLF for a foam
How do I get the DLF for a foam? The loss factor is defined as...
Emna Ben Ali
Vibro-Acoustics
37

DLF&gt;1  when damping computed &quot;from NCT&quot;
This can be due to a bad conditioning of the transfer matrix used by foam module to calculate the NCT impedance to submit to the panel.
Emna Ben Ali
Vibro-Acoustics
22