Fabrication and Testing of High-Speed-Single-Rotor and Compound-Rotor Systems
Abstract
The Alfred Gessow Rotorcraft Center has considerable experience in the design, fabrication and testing of rotor models because of its dedicated unparalleled rotorcraft-related experimental facilities. The objective of this grant was to acquire key equipment needed to augment the facilities for precision data acquisition required to generate a comprehensive set of measurements of the blade surface pressures, pitch link loads, hub loads, rotor wakes and performance of high-speed single-rotor and compound-rotor systems to support the development of the next-generation of rotorcraft, such as envisioned in Joint Multi-Role (JMR) rotorcraft program. These data are crucial to validate advanced CFD tools as well as gain improved understanding of the fundamental physics in high advance ratio flight conditions. A variety of Mach-scale rotor configurations were tested on our hover stand and in the Glenn L. Martin wind tunnel, covering a range of flight conditions including full-disk retreating-side reversal ( ). Many of these activities have already taken place and many more are in progress at the University of Maryland under different rotary-wing programs sponsored by Army, and these instrumentation have helped in overcoming some deficiencies in previous precision data acquisition and data processing capabilities.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 04, 2016
- Accession Number
- AD1014722
Entities
People
- Inderjit Chopra
Organizations
- University of Maryland