Avoiding Destructive Vibrations with Modal Frequency Simulations

[@weasdown]

Wouldn't it be better to have the lowest mode above the specified frequency range? That way when the motor is turning on and off it won't pass through the mode. Great video though, thanks team!

[@adskFusion]

As I understand it, that situation - keeping the lowest mode above the frequency range - would be best. However, as long as the excitations are avoided in normal usage (vs startup/shutdown/pass through), I think most issues could be avoided. We'd love to hear others thoughts on this.

[@weasdown]

Hmm ok, thanks!

[@adskFusion]

I could def be wrong. We have subject matter experts here I can and will forward this to.

[@weasdown]

Thanks!

[@Nurhasanah-pu6on]

May I ask, why is there no additional load in the modal frequency simulation?

[@AronGari]

Always love seeing videos of features that I haven't learned yet that can expand my ability with Fusion; though it would be nice to have a little more of the whats, and whys than just "do this, then this, followed by this". Such as what do the different types of constants do, and why use one type over another. (Edit: this might be outside the intended purpose of these videos; if that is the case though it would be helpful to have a link in description to more in depth information.)

[@adskFusion]

Most of our instruction covers 'picks-and-clicks', like this, but others get more into the "why" aspect. If I had to guess why it's because the former is easier to make. Thanks for writing in; we'll make more of an effort to covers these topics at a deeper level in the future!

[@adskFusion]

BTW, just added a video focused on sim contact. The OTHER reason we might want to avoid getting to into the details is that these videos don't perform as well. Like right now that one has 11 likes and 1 downvote: bad comparably. Anyway, just wanted to give you a little more insight and let you know we posted the video on sim contact.

[@molak34]

2:13 .... the 1/60 used in the calculations has nothing to do with the motor. Is the conversion factor to go from RPM to Hz.

[@adskFusion]

Not sure what happened there. The graphics shows what you say (and is correct), but the voiceover deviated a bit. Sorry for any confusion that might have caused.