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HelicopterAerial Photography and Video › Electric Motor Mounting???
01-24-2007 03:11 PM  10 years agoPost 1
TCGliderguy

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Albuquerque, New Mexico

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I'm finally getting to installing my Actro 24-5 motor in an Audacity Tiger......

I molded a carbon fiber "channel" to bolt between the side frames. The motor will bolt to the channel, using the supplied, three legged G-10 mounting plate.

My question for the assembled multitudes is: Should I use rubber grommets between the three legged mounting piece and my carbon channel?
Obviously, the top of the shaft will be supported by a 10mm ball bearing.

I can imagine advantages and disadvantages for doing so....

Any thoughts?

Thanks!

-Taylor

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01-24-2007 05:03 PM  10 years agoPost 2
rroback

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Irvine (UCI), Ca

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I've thought of mounting motors with some sort of dampening, but I think you can fairly quickly get some occilations, or the structure can start to really just become a little sloppy. I think for power transmission we need an strong, stiff electric mount. You could however put some sort of foam blocks on the side to slightly dampen any vibes. I've founded that worked super well ( as long as you got plenty of cooling) and could easily change your harmonic frequency. I work on a research project at uci where I designed the motor mount, and basically it was an all carbon mount, on a carbon plane and boy, the first thing we started that up, we had a bit of a scare. some foam blocks made it run perfect.

Rhett..... I can't fly, but the Profi sure can.

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01-24-2007 06:45 PM  10 years agoPost 3
TCGliderguy

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Albuquerque, New Mexico

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Rhett,

I'm not sure I'm understanding your foam block idea....

Are you saying that you're mounting rigid styrofoam blocks to stablize the side to side movement of the motor? ..... or rubber foam (something like the density of the pool noodles that we all use.....

What about a foam lined "ring".....

Of course, now that I think about this... Nothing can contact the outer can of an "outrunner" motor like I am using....

?????????

-Taylor

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01-25-2007 10:11 PM  10 years agoPost 4
rroback

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Irvine (UCI), Ca

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duh, I didn't read the actro 24-5 part. I was suggesting you use foam to stop the side to side movements, and it doesn't actually matter what foam you use, as long as it's decent stiff. I wouldn't worry about your motor, but if you really need some sort of dampener, you could use rubber sheet, and mount that between the motor/mount.

Rhett..... I can't fly, but the Profi sure can.

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