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Looking for tips on using the Simcenter Testing products? You have come to the right place! Learn all about Simcenter SCADAS, Simcenter Testlab, Simcenter Anovis, and more...
This channel contains informational videos and technical tips. It is created by users. Please enjoy!
This channel contains informational videos and technical tips. It is created by users. Please enjoy!
Simcenter Testlab 2406 Acoustics
What's New in Simcenter Testlab 2406 Acoustics. New features include variable playback speed, 3D sound source localization, updated exterior pass-by noise standards, sound power in Neo, metamaterial support in acoustic testing. More information: community.sw.siemens.com/s/article/What-s-New-in-Simcenter-Testlab-2406
zhlédnutí: 172
Video
Simcenter Testlab 2406 Environmental
zhlédnutí 69Před dnem
What's New in Simcenter Testlab 2406 Environmental. New features include scheduled time storange, virtual channels, iterative gains in shock control, shaped drives in acoustic control: community.sw.siemens.com/s/article/What-s-New-in-Simcenter-Testlab-2406
Simcenter Testlab 2406 Durability
zhlédnutí 107Před dnem
What's New in Simcenter Testlab 2406 Durability. New features include Mission Synthesis, arbitrary angle critical plane analysis, and 2D histogram displays: community.sw.siemens.com/s/article/What-s-New-in-Simcenter-Testlab-2406
Simcenter Testlab 2406 General
zhlédnutí 138Před dnem
What's New in Simcenter Testlab 2406 Overview. Myriads of useability improvements and the introduction of Testlab Workflow Automation (TWA): community.sw.siemens.com/s/article/What-s-New-in-Simcenter-Testlab-2406
Simcenter Testlab 2406 Structures
zhlédnutí 124Před dnem
What's New in Simcenter Testlab 2406 Structures. New features include a reworked impact acquisition with integrated multiple hammer merging (low and high frequency), campaign setup with CAD models, and geometric overlay in correlation: community.sw.siemens.com/s/article/What-s-New-in-Simcenter-Testlab-2406
Simcenter Anovis Setting Limit Metric
zhlédnutí 16Před dnem
Simcenter Anovis is used for industrial quality screening. This article on the Simcenter Testing community explains how to set a limit based on gathered production data: community.sw.siemens.com/s/article/Simcenter-Anovis-Metric-Example
Simcenter Anovis Viewer Tips and Tricks
zhlédnutí 29Před dnem
Tips and tricks for using the data viewer in Simcenter Anovis: community.sw.siemens.com/s/article/Simcenter-Anovis-Viewer-Tips-and-Tricks
Simcenter Testlab Torsional Tips
zhlédnutí 139Před 21 dnem
Tips and tricks for using Simcenter Testlab to measure and analyze torsional vibration: community.sw.siemens.com/s/article/tips-and-tricks-for-torsional-orders
Torsional Animation in Simcenter Testlab
zhlédnutí 42Před 28 dny
Simcenter Testlab can be used to visualize experimentally measured torsional vibration. More tips for measuring and analyzing torsional vibration can be found on the Simcenter Testing community: community.sw.siemens.com/s/article/tips-and-tricks-for-torsional-orders
Dynamic Stiffness, Compliance, Mobility,...
zhlédnutí 804Před 28 dny
Frequency Response Functions come in many forms. Learn the differences between Dynamic Stiffness, Compliance, Mobility, and more in this Simcenter Testing community article: community.sw.siemens.com/s/article/dynamic-stiffness-compliance-mobility-and-more Additional article and video on Frequency Response Functions in this Simcenter Testing community article: community.sw.siemens.com/s/article/...
Mission Synthesis Seminar
zhlédnutí 178Před měsícem
Mission synthesis is a process where field vibration data is collected and turned into an equivalent test that can be performed on a shaker table. More information about the Mission Synthesis process on the Simcenter Testing community: community.sw.siemens.com/s/article/Mission-Synthesis-Seminar Some terms used in the video: Power Spectral Density (PSD): community.sw.siemens.com/s/article/what-...
Sine Amplitude Estimation Methods (Harmonic, Peak, RMS, Average)
zhlédnutí 270Před měsícem
Sine Amplitude Estimation methods (Harmonic, Peak, RMS, and Average) for Sine Vibration Control testing on the Simcenter Testing community: community.sw.siemens.com/s/article/sine-control-amplitude-estimation-methods
Simcenter Testlab Neo Introduction
zhlédnutí 260Před měsícem
Simcenter Testlab Neo (Neo is Greek for "New") is a newly refreshed version of Simcenter Testlab including a new graphical interface, quicker data viewing, and enhanced processing and analysis capabilities. Learn about Simcenter Testlab Neo in this Simcenter Testing community article: community.sw.siemens.com/s/article/Simcenter-Testlab-Neo-Introduction
Simcenter Testlab Neo Pivot Table and Displays
zhlédnutí 51Před měsícem
The Simcenter Testlab Neo pivot table quickly displays data avoiding the need for multiple clicks. More information on the Simcenter Testing community: community.sw.siemens.com/s/article/Simcenter-Testlab-Neo-Pivot-Table
Simcenter Testlab Automation
zhlédnutí 179Před měsícem
Simcenter Testlab Automation enables users to write custom programs on top of or embedded in Simcenter Testlab. The Simcenter Testlab automation objects include capabilities for data management, displays, acquisition, and processing. More about Simcenter Testlab Automation on the Simcenter Testing community: community.sw.siemens.com/s/article/Simcenter-Testlab-Automation
ISO 2631 & ISO 5349: Human Body Vibration
zhlédnutí 466Před 3 měsíci
ISO 2631 & ISO 5349: Human Body Vibration
Simcenter Testlab Neo: Orders, Overall Levels, Run Comparison
zhlédnutí 249Před 4 měsíci
Simcenter Testlab Neo: Orders, Overall Levels, Run Comparison
Simcenter Testlab: Overlaying Mode Shapes
zhlédnutí 163Před 5 měsíci
Simcenter Testlab: Overlaying Mode Shapes
Simcenter Testlab CAD Modal Animation
zhlédnutí 133Před 5 měsíci
Simcenter Testlab CAD Modal Animation
Why didn't I have the processing option? Is this related to my data?
It could be related to your data or to your software revision. What type of cursor is not showing the processing option (order, frequency, or Z)? What revision of Testlab software (2019 or higher)? Is the data plotted against rpm if trying to use the order cursor?
@@SimcenterTesting The version I am using is Testlab Build: 210120 Neo. I can't find any processing cursors, whether it's X, order, frequency, or Z. In the data I’m using, the X-axis quantity is HZ Frequency and the Y-axis quantity is rpm RotationalSpeed. I'm new to Neo, but I am quite familiar with the Standard version of Testlab. In that version, I can add processing cursors (X, Z, frequency, order, cross) in any display. Why can't I do this in the Neo version?
@@SimcenterTesting It seems like I've found the reason. It’s probably because I was using the 2021.1 version and had installed the Standard version instead of the Advanced version. After reinstalling the Advanced version, my dear processing cursor appeared.
A third reason - thanks for letting us know for posterity!
How does auditory masking work if infrasonic Bass is played - does it still mask content in the audible range even though the Masker itself isn't audible? Do you have any resources you can share on the Topic? I couldn't find anything after a quick look online :/ Thanks for the great video!
Lee Angela Miller Kimberly Taylor Richard
Hola. Nosotros tenemos problemas en camiones 793D Caterpillar con respecto a vibración en cabina. Tendrán información relación de evaluación o pruebas para poder resolver dichos problemas?
Numero Teléfono para consulta de servicios en Guatemala
I would you like to know if you have some examples showing how calculate functions as "'vectorsum", "powavg" in Neo......
See section 7 of this article: community.sw.siemens.com/s/article/Calculating-and-Comparing-Orders-and-Overall-Levels-in-Simcenter-Testlab-Neo
Hi, some video taught that the proper way to do a impact test is we need to hanging the structure. Is it true?
That is not always true. If trying to correlate to a free-free simulation model of the test object then hanging from a soft suspension can approximate the same conditions as the free-free simulation model. If the modes of the test object as installed are of interest, then it would be mounted as it is used in a real life application. The simulation model can also reflect real life boundary conditions as well. Further discussion in the boundary conditions section of this article: community.sw.siemens.com/s/article/Modal-Testing-A-Guide
@@SimcenterTesting thanks for your response😊
Here after converting using FFT, X units will convert from Sec to Hz. How about Y units, will it remain as the actual units? As I am trying to convert the acceleration curve (g) vs Time. After using FFT, X unit converted to Hz, but Y remains same in graph. Could you please explain.
If understanding your question correctly, the FFT of an acceleration (g) curve versus time is a frequency spectrum of acceleration (g) versus frequency. There are some additional considerations: community.sw.siemens.com/s/article/the-autopower-function-demystified
in FRF plots @4:00 : the vertical axes do not appear to be correct. The Imag axis should be Flipped in the lower phase diagram.
I want to find the damping ratio of a helical spring using this method: 1. Attach an accelerometer at the top of the spring. 2. Disturb the spring by hand to generate a time vs. frequency graph. 3. Convert this time vs. frequency graph to an FFT to see the frequency vs. amplitude graph. 4. Find the damping ratio using the half-bandwidth method on the FFT. My questions are: a. Is this the right method to find the damping ratio, or is the FRF necessary to include the force with hammer impact? b. What if I use or don't use an impact hammer as in this video?
Can you make one video using audacity too? I want psd curve in it
I want to find the damping ratio of a helical spring using this method: 1. Attach an accelerometer at the top of the spring. 2. Disturb the spring by hand to generate a time vs. frequency graph. 3. Convert this time vs. frequency graph to an FFT to see the frequency vs. amplitude graph. 4. Find the damping ratio using the half-bandwidth method on the FFT. My questions are: a. Is this the right method to find the damping ratio, or is the FRF necessary to include the force with hammer impact? b. What if I use or don't use an impact hammer as in this video?
The half-power method is defined based on the FRF, so to use the half-power method you would need to measure the input to the spring. Alternatively, you could use the logarithmic decrement method. This does not require you to measure the force and does not require an FFT.
@@Will_Rog42 DO you think we can measure damping ratio using Log decriment without FFT and input force?
how can I download or buy this software?
You have to contact your local Siemens office: plm.sw.siemens.com/en-US/contact-plm/. The official website about the product the contact link is here: plm.sw.siemens.com/en-US/simcenter/simulation-test/acoustic-testing/active-sound-design/
Can we find the damping ratio of helical spring using harmonic analysis in ansys?
thank you, very good video!
Is neccesary to add an hysteresisi filter if the signal will be filtered with the peak valley method? Or there are signals that might need both procceses as the complexity is higher? Can other filters be added instead of the hysteresis filttering?
The hysteresis filter is used to remove small cycles. We do it always with at least the size of 1 bin width. So, all cycles that are smaller than 1 bin width are ignored. The peak valley filtering mentioned in the video will remove monotonic parts between turning points. Without the hysteresis filter there would be much more turning points and you would end up with cycles on the main diagonal. These would be cycles with a reference amplitude of zero (after the binning). So, it does not make much sense in keeping them with respect to damage. Other filters can be applied in time domain before doing the Rainflow counting, but they are not embedded in the Rainflow counting algorithm as we have implemented it. But be careful with applying filters that modify the amplitude: this will modify the damage!
sir, how to determine the hours of 1 cycle?
Cyclic fatigue is independent of time. Any stress cycle could be applied slowly or quickly. In the end, the number of complete cycles applied is what matters. If cycles in real life usage are applied quickly, the part will fail faster than if they are applied slowly over time.
@@SimcenterTesting so is it means, I need to know the value of time during the stress cycle? If I want to convert the cycles to time?
Very informative - thank you!
Thanks for sharing! Very clearly explained the difference between sound power and pressure 👌
Would this still give accurate displacements for impulses in the data? If I drive over multiple small bumps and measure acceleration, would I be able to accurate determine the height of the bump?
as shown at 2:24 from where to get the ductility and strength coefficient and exponents of material if we have to add new material?
Hello, I'd like to ask about the software. I'm using LMS Testlab now. What is the different between Testlab and Testlab Neo? And Is it possible to calculate psychoacoustic tonality in LMS Testlab? Thank you and look forward to your reply
Neo has an updated user interface compared to Testlab ""Classic" which is faster to use for many tasks. There is a lot of overlap in functionality between Neo and Testlab, and some newer features in Neo. Here is some more information on Simcenter Testlab Neo: community.sw.siemens.com/s/article/Simcenter-Testlab-Neo-Introduction
For Tonality - Classic tonality which has a range of 0 (no tones) to 1 (very tonal) is in Testlab. Tonality HMS which goes from 0 to beyond 1 also by considering the loudness level is available in Simcenter Testlab Neo: community.sw.siemens.com/s/article/Tonality
28:34 where have you guys defined the other natural frequencies and whole curve for other systems so, how does this spectrum come without specifying these parameters
28:37 - it is actually a single slope linear approximation of the Whoeler curve (Basquin law N σ^b=A^b). The natural frequencies are defined by the “frequency axis parameters”. For this analysis and for SRS calculations, there is a subtle but important difference between the two, as pointed out in the articles community.sw.siemens.com/s/article/Fatigue-Damage-Spectrum and community.sw.siemens.com/s/article/shock-response-spectrum-srs
How did you define the no. Of systems and their natural frequencies for an example if DUT is a bicycle then : 1. Is all the bicycle component will be counted as different system where SDOF model will be applied to each and every system (bicycle components) and similarly the natural frequency of all those components as well as there SN curve will be u still see to find the FDS curve Are my above assumptions correct or please suggest the correct assumption
Do not confuse the SDOF systems with the natural frequencies of the test object. Mission Synthesis goal is to derive the input to a test article whose resonant frequencies are unknown. FDS uses for this scope a generalized resonance model under the assumption that (unknown) resonances ultimately lead to fatigue failure. Frequency spacing limits are often suggested by standards (e.g min xx points per octave), but I find a good practice for defining the frequency spacing to quickly analyze the frequency content of the input events upfront to make sure I am not cutting out input energy. For example, if the input signals show a clear sharp peak at around 4 Hz, a 2 Hz resolution starting at 1 Hz will lead to [1,3,5, …] Hz frequency axis which will result in an interpolated value at the critical 4 Hz frequency. It would be better to start at 1 Hz and define a 1 Hz resolution (or at 2 Hz with a 2 Hz resolution, for the sake of this example).
14:00 why pseudo velocity is the one to use
Suggest reading section 4.5 of this article: community.sw.siemens.com/s/article/shock-response-spectrum-srs
Can i use this parameters to compute power (in dB) from a EEG - specific band over time ?
The software can do IIR filter? And mathematic codes?
Nice. What about 30Hz 90Hz 150Hz amplitude and phase response?
The software can read wave files and numpy files?
Very informative. Lady has a beautiful voice. Thank you.
very good video. Pls how do we calculate the remaining life of a part if given that different loads were applied and different numbers of cycles generated?
how did you decided the length of the hystereis gate?
In our software, the minimum gate is 1 bin width. This will avoid cycles on the main diagonal which would have a reference physical range of 0. This would not add to the damage anyway. You can use larger gates, then this value should relate to the endurance limit of the material you are measuring/testing. So, the gate should only exclude cycles where you are super sure that they will not add to your damage.
why is the damping ratio different for all peaks. damping ratio for a material should be same .
In a dynamic mode of a structure, modes that occur at different frequencies can be local to smaller components of the structure. These components can be made of different materials, have different boundary conditions, or the material is not uniform throughout the structure.
How can we save report in word file?
File -> Printing Options -> Default Microsoft Application set to Microsoft Word.
7:08 why?only inner counted?
Only the inner points build a closed hysteresis loop in the stress/strain path. To close the cycle built by the inner points, you need the outer points. Later, the outer points might become inner points of some larger points. Then they are counted as well.
Thank you!
This is why I do not loan my equipment to others!
Excellent presentation !
Thank you so much. Is there any code for these theories?
Are u from Siemens ?
Are Auto power spectrum and cross power spectrum types of Fourier transform representation
An autopower is based on the fourier transform, but it is squared to remove phase: community.sw.siemens.com/s/article/the-autopower-function-demystified. Both a Fourier Transform and a Autopower are typically calculated based on a single signal. A cross power is frequency function calculated between two separate signals.
11:30
Hi!! We're doing a modal test using 6061 aluminum shallow plate(15cm x 8cm) . We've attached 12 accelerometers on the plate, and fixed one edge of the plate to the vibration shaker. We're trying to find the 'response characteristics' of three different cases. 1. modal test using only impact hammer 2. random test using only vibration shaker 3. random test using only vibration shaker (condition : the fixed bolts of the vibration shaker is a little bit loosened) can you guess the reason why there are response characteristic differences? plus, do you think there's an algorithm to testify loosened bolts?
grazie bro
Really amazing with good humor. Thanks guys