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Juan David de la Fuente

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  1. Hi, Thanks for your response. This is a company project, unfortunately I'm not able to share any confidential information unless you are an Altair member. If that is your case, could you please share your email? Regards.
  2. Hello. I've been struggling with the simulation of a sensor consisting of a coil with a ferromagnetic core and a magnet. The main output to analyse is the voltage induced on the coil by a rotating target. I'm modeling the coil as stranded-coil conductor coupled with a series resistor (see attached circuit.png). When measuring the voltage across the coil, I'm looking at very high fluctuations in voltage (see attached results.png), if I take the derivative of the flux (flux.png) through the coil, the behavior is minimized a bit, but still present. Any ideas to improve this high variation? Thanks.
  3. Hello there, I'm trying to develop a study with the RL-GO solver, so I also need to run a "pre-study" to create the .tr file for the medium. One of the parts in question is made of construction_concrete. In the "pre-study" I'm creating a layered structure of 5mm per side with the following properties: Thickness: 0.1mm (due to WARNING 2757: A triangle is too thick as compared to the lateral dimensions for application of the skin effect approximation) Dielectric material: Construction_concrete_block As the Example H05. Jerusalem_Cross_FSS specifies, I'm including a two dimensions PBC with 5.2mm per side, the operating freq. is 77GHz and running the solver the following WARNING appears: WARNING 49005: Reflection/transmission not defined due to possible grating lobes. I reviewed other similar questions here at the forum (Interpretation of the near field) and one of the alternatives is to move the measurement of the transmission/reflection coeff. to 10 wavelengths, lambda=c/f, 3x10^8/77=3.896mm. If I request the transmission/reflection coeff. at: X: 4mm Y: 0mm Z: 0mm the WARNING still appearing. I think using near field request for "Calculate only the scattered part of the field" is not the more appropriate alternative since my full model intended to run with RL-GO is in meters. Should I change something on the study definition? Or this is something I can take as an "acceptable" WARNING? Should I change the solver for the full model? Thanks for your support on this, -David
  4. Hi Peter, thanks for your quick response. Unfortunately I can´t share the geometry or any file containing it due to confidential policy of the enterprise I work to. Do you think I should contact Altair for technical support and make it more 'formal'? Thanks.
  5. Hi everyone, I'm trying to develop a resonance study including a patch GPS antenna and when I try to run the FEKO solver it says all segments and triangles are perfectly conducting. After checking geometry and mesh the 'ERROR 33238: Not enough memory available on the hard disk for an out-of-core file' appears. The .out file describes 244340 flat triangles and my computer has 64GB RAM installed (below you can find the .out file). I allowed also a local parallel execution, but the error stills appearing. I'm using the default solver (MoM), but I don´t know if I'm using a wrong solver. Since my geometry is approx. 83x180mm. Should I use the 'farm out' function as well? Thanks. GPS_Nov.out
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