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


Aeromechanical Loads on a Mars Coaxial Rotor

Daniel Escobar, Inderjit Chopra, Anubhav Datta, University of Maryland

  • Your Path :
  • Home
  • > Aeromechanical Loads on a Mars Coaxial Rotor

Aeromechanical Loads on a Mars Coaxial Rotor

  • Presented at Forum 74
  • 16 pages
  • SKU # : 74-2018-1268
  • 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

Aeromechanical Loads on a Mars Coaxial Rotor

Authors / Details: Daniel Escobar, Inderjit Chopra, Anubhav Datta, University of Maryland

Abstract
A detailed aeromechanical understanding of a coaxial rotor flying on Mars is presented using a combination of vacuum chamber tests and free-wake based comprehensive analysis. The objectives are to understand the limits of performance, structural loads, control loads (pitch link), wake interaction, and blade strike for hingeless and articulated coaxial rotors. Because of the uniqueness of Martian conditions and the impossibility of testing a rotor at such conditions on Earth on ground a variety of unit tests and a progressively refined set of analysis are used to build up the problem. The unit tests include: construction of composite blades, structural testing, development of a vacuum chamber rotor rig, inclusion of full swashplate controls and hover testing of an isolated rotor. The analysis suite include: 3D FEA, 2D CFD, and a coaxial comprehensive analysis with flexible blades and free-wake. The key conclusions of the research are: (1) the hingeless rotor has high blade root loads and hub loads as expected but the articulated rotor experiences much greater pitch link loads across all the rotor cases explored due to C.G. offsets dictated by an ideal low Re sharp leading edge airfoil (2) the hingeless and articulated rotors both have similar blade tip separation for rotor spacing of 20%R or lower (3) the blade tip separation in fact increases with advance ratio­not decreases­because of the cyclic phasing of the blade passing locations, and (4) tip separation is determined not by blade dynamics but cyclic inputs on relatively wide chord blades.

Recently Viewed Items

  • Aeromechanical Loads on a Mars Coaxial Rotor

    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.