ivar_kjelberg

51 Reputation

3 Badges

14 years, 103 days
My current post is "Senior Expert" with 30+ years of experience in mechatronics developments in the frame of complex, multidisciplinary, high tech "systems engineering" activities. Previous posts were "Senior Project Manager, Section Head, Project Manager, Quality Engineer, R&D Engineer. I work in a retained profit company, a "High Tech", R&D Institution, closely linked to the EPFL (Ecole Polytechnique Federale de Lausanne), we are located in Neuchatel Switzerland. We use advanced tools such as Maple, MapleSim and COMSOL Multiphyiscs for our developments and for our Ph.D. training activities.

MaplePrimes Activity


These are questions asked by ivar_kjelberg

Hi MaplePrimes Web managers

I suspect you have forgotten to update the lists for MapleSim "2017" you seem to stop at "MapleSim 2016", while I hear from your local office that MapleSim 2018 is "just around the corner" ...
It would make it easier to sort the issues for the last version, no ?

Thanks for your support
Sincerely
Ivar

Dear All

I seldom need support, Maple/MapleSim usually runs OK, but here I'm stuck with MapleSim 2017 I'm modelling some thermal fluid properties and each time I make a sub-system I get two errors:

1) the entries (and exit variables) "rho, Cp, Cv, lambda, and nu" of my models are set to default "1" instead of my expected value the names of my fluid-parameter items. I must rename them by hand to be able to solve my model, why not a link to the fluid parameter node ?

2) I get a pressure p (or is it a "rho"?) issue: "Cannot resolve `Main.Block1.p`; there is no `p` in variable `Main.Block1`" when I create a sub-system I call here Block1 and my model does not solve if I make any "sub-systems", and I cannot find out what to do, is this an initial value issue ? the error message could be more helpful ;)

Any clues how to get around this ?

Thnaks in avance

Sincerely

Ivar

Hi

When I export my MapleSim 5 results to a CSV file, I get only 6 digits, I'm looking for effects in the 1/1000 ppm or ppb region, I'm lost here

The global Settings window allows me to adapt epsilon abs and rel, thats nice, but nothing on the data export side.

I find it logical and usefull to have a settings on the export tab to decide on precision, and or selection of time series (usefull if one does not want all data, but just the last 100 values of a loooong run ;)

Dear MapleSim users

How can I get a display block / digital meter ? I want to display the last (or at a triggered time) the numerical value of a point/connection of a system.

I do not need the full graph of the "probe just the one value. It's mainly for debugging purpouse, to have a few check points once run.

The probes are nice but sometimes you want just a number not the full graph ;)

Does anybody have a trick ? Or could the probe plot item...

Hi simulators

Is there an easy way to give a global time frame/limits for all plots: typically I need to simulate a few seconds to get rid of all my transients, and then I would like to zoom in on the effect of interest. Now I have only found out how to reset one by one each graph via the axis properties, I have a dozen graphs per simulation 4 variables to scan over ten points each, that makes a damn lot of graphs properties click to reset, results: I need 60 sec to...

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