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


Aerodynamic Optimization of a Small UAS Rotor for a Mission with Hover and Forward-Flight Segments

Nathan Beals, U.S. Army Research Laboratory

  • Your Path :
  • Home
  • > Aerodynamic Optimization of a Small UAS Rotor for a Mission with Hover and Forward-Flight Segments

Aerodynamic Optimization of a Small UAS Rotor for a Mission with Hover and Forward-Flight Segments

  • Presented at Forum 74
  • 14 pages
  • SKU # : 74-2018-0216
  • 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

Aerodynamic Optimization of a Small UAS Rotor for a Mission with Hover and Forward-Flight Segments

Authors / Details: Nathan Beals, U.S. Army Research Laboratory

Abstract
Aerodynamic optimizations of small rotors for use on a quadrotor vehicle are presented using both axial and forward flight blade element momentum theory to calculate the vehicle performance over a typical intelligence, surveillance, and reconnaissance (ISR) mission. Total energy required is minimized by allowing the rotor chord distribution, twist distribution, and hover rotational speed to vary subject to several geometric and performance constraints. The global minimum of the objective function is found using the non-gradient-based genetic algorithm NSGA-II. The main design case is a typical ISR mission consisting of a one kilometer forward flight segment at four meters per second, a five minute hover segment, and another one kilometer forward flight segment at four meters per second. Rotors are optimized for several maximum allowable chord values and compared to previous optimization results of rotors optimized for a hover mission. Both the hover condition and forward flight condition limits of the objective function are examined using rotor optimizations. Results show that compared to a hover-optimized rotor, the ISR-optimized rotor performs the ISR mission using three and one-half percent less total energy, while constraining the maximum allowable chord length during the ISR optimization resulted in up to a nine and one-half percent energy penalty compared to the unconstrained case.

Recently Viewed Items

  • Aerodynamic Optimization of a Small UAS Rotor for a Mission with Hover and Forward-Flight Segments

    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.