Gyroscopic effect on tilting rotor?

[wisemo]

Hello folks
I've been a little confused - I'm currently designing a rotorcraft but I need to be able to predict the force (or torque) I'd need to tilt the rotor.

What I've done is model the rotor as a simple rigid disc. I've attached the diagram below. what sort of behavior would I get during trying to tilt it in any direction? Please note that the pivot is a ball-socket joint and so it's able to tilt in any direction.

Thank you

 

[Topher925]

Have a look at the moment of gyration; http://en.wikipedia.org/wiki/Radius_of_gyration

The amount of force required to tilt the rotor will be based on its moment of inertia and angular velocity.

But why would you build a rotor craft with a titling rotor? Whats the point?

 

[wisemo]

That link simply tells me how to calculate the radius of gyration. Nothing about moments.
What I'm working on is a gyroplane - hence the requirement for tilting.

Thanks :)
Mo

 

[rcgldr]

I recommend doing a web search for "gyrocopter cyclic" and also "teeter hinge rotor", "fully articulated rotor", ...

A few links, and I'd recommend finding and consulting an expert on this.

http://en.wikipedia.org/wiki/Helicopter_rotor
http://www.cybercom.net/~copters/mech/mr_semi.html
http://www.chinook-helicopter.com/Fundamentals_of_Flight/Ground_Resonance/Ground_Resonance.html
http://en.wikipedia.org/wiki/Autogyro
http://www.geocities.com/lwb47/
http://www.rcgroups.com/forums/showthread.php?t=614030
http://www.rcgroups.com/forums/showthread.php?t=324822