VFS Website
  • VIEW CART
  • CUSTOMER SUPPORT
  • MY STORE ACCOUNT
  • CONTACT US
  • STORE HOME
  • 5Prime
  • Forum Proceedings
  • Workshops
  • Technical Meetings
  • Vertiflite
  • Books, CDs & Gifts


Unable to log in or get member pricing? Having trouble changing your password?

Please review our Frequently Asked Questions for complete information on these and other common situations.
 

Vertical Flight Library & Store

CHECKOUT

0 Item(s) In Cart Total: $0.00


Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction

Young You, Sung Jung, Konkuk University

May 17, 2016

  • Your Path :
  • Home
  • > Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction

Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction

  • Presented at Forum 72
  • 12 pages
  • SKU # : 72-2016-354
  • Your Price : $30.00
  • Join or log in to receive the member price of $15.00!


VFS member?
Don't add this to your cart just yet!
Be sure to log in first to receive the member price of $15.00!

 
Add To Cart

Add to Wish List

Reward Value:
(60) Member Points

Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction

Authors / Details: Young You and Sung Jung, Konkuk University

Abstract
In this paper, the best actuation schedules exploiting various waveform types are sought taking advantage of the global search algorithm for the reduction of the power required and/or hub vibration of a rotor in high speed forward flight. The active twist schedules include two non-harmonic inputs formed based on segmented step functions along with the simple harmonic waveform input. An advanced particle swarm assisted genetic algorithm (PSGA) is employed for the optimizer. A rotorcraft computational structural dynamics (CSD) code CAMRAD II is used to perform the rotor aeromechanics analysis. A CFD/CSD coupling is introduced to assist the observations made using the CSD analysis. The PSGA optimization results are verified against the parameter sweep study performed by the harmonic actuation. The best optimum twist schedules according to the performance or vibration reduction strategy are identified and their optimization gains are compared between the actuation cases. A two-phase non-harmonic actuation schedule demonstrates the best outcome in decreasing the rotor power required while a four-phase non-harmonic schedule leads to the best vibration reduction. The mechanism of reduction gains is identified illustrating the section airloads, angle-of-attack distribution, and net elastic twist deformation predicted using CSD and CFD/CSD approaches.

Recently Viewed Items

  • Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction

    Member Price :
    $15.00
    Your Price :
    $30.00

Popular Products

  • Master Card
  • Visa
  • American Express
  • Customer Support
  • Contact Us
  • Privacy and Security Policies
  • Refund Policies

Copyright © 2022 The Vertical Flight Society. All rights reserved.