A configuration design of rotor blades for suppressing rotary flutter of tiltrotor aircraft
A technology for tilting rotorcraft and rotor blades, which is applied in the directions of rotorcraft, motor vehicles, aircraft, etc., can solve the problems of increasing the waste resistance of the wings, increasing the wing, reducing the efficiency and performance of the tilting rotor, and achieving the suppression of Swing chatter, the effect of increasing the speed of swing chatter
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0040] In this example, for the XV-15 tilt-rotor aircraft half-span wind tunnel model, the proposed rotor blade configuration is used to suppress rotational flutter. The rotor used in this model is a universal hinged rotor, the rotor speed Ω = 458r / min, the rotor radius R = 3.82m, and there are 3 blades in total. The blade has a nonlinear negative torsion, the root torsion angle is 0°, the tip torsion angle is -45°; the blade chord is 356mm, the blade root airfoil is NACA64-935a=0.3, and the blade end airfoil is NACA64-208a=0.3. In this example, the position, torsion angle and blade airfoil of the beam 4 are kept unchanged, and only the part near the tip of the blade is improved. figure 1 The radial starting point of the blade deflection is located at 0.75R from the center of rotation. The distance between the deflection point 13 of the mid-chord line of the B-B section of the blade tip and the leading edge point 12 of the airfoil is 50% of the chord length. From the radial s...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com