SynchroLite ~ Vibration - Rotor Induced

Overview:

The pilot is located so close to the helicopter's center of gravity that the three rotational moments should not be a problem.

The vertical linear motion may be a concern. Stiff blades, large tip weights, and perhaps a coning hinge may minimize this.

 Notes re Linear Vertical Motion:

  1. Another, perhaps crazy, idea might be to consider adding delta-3 to the flapping/coning hinges as well as the teetering hinge, since this will cause the blade to pitch up if it drops; or will the 'pitch up' be too late?
  2. There will always be blade crossing at 4P and only the location of crossing changes, with changes in forward velocity. Could something tweak the whole collective up&down and also change the azimuths of up&down as the forward velocity changes?

 Working Papers:

 

DESIGN:

B226

MAKE:

 

BUY:

 

Items:

DESIGN:

 

Name

Item

 

Rotor - Disk - Single - Downwash in Hover

0721

 

Rotor - Disk - Aerodynamic Interaction between Intermeshing Disks

0419

 

Rotor - Disk - Blade to Blade Clearance

0199

 

Rotor - Disk - Intersection Azimuths

0720

OTHER:

 

Name

Item

 

Aerodynamics - Vibration - Rotor Induced - Analysis

1059

 

Aerodynamics - Vibration - Rotor Induced - Source

1020

 

Aerodynamics - Vibration - Rotor Induced - Re: Flettner FL-282

1086

 

Aerodynamics - Vibration - Rotor Induced - Individual Blade Control

1060

 

Aerodynamics - Vibration - Rotor Induced - Higher Harmonic Control

0793

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Last Revised: June 20, 2002