flyrotary@lancaironline.net Mailing List Archive

Message

Would be interesting to see some numbers. I look at it from point of view of trying to clip a wave. That portion of frequency response which is out of phase would clip it. Same principal as noise canceling headphones.

-al wick

----- Original Messae -----

From: Richard Sohn

To: Rotary motors in aircraft

Sent: Sunday, December 02, 2007 10:13 AM

Subject: [FlyRotary] Re: Giving up on single rotor

What you really want to do is stay with the natural frequency of the coupler below or above the exiter frquency, in our case the RPM, and give it as much damping factor possible. For a rubber coupler, this means having it soft for low frequency, and on an as short as possible distance from the center of rotation for good damping effect.

It worked for me.

Richard Sohn
N2071U