Accession Number:

ADA090513

Title:

A Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics. Part 1. Analysis Development

Descriptive Note:

Technical memo.

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER

Personal Author(s):

• Johnson, Wayne

Report Date:

1980-06-01

Pagination or Media Count:

443.0

Abstract:

The development of a comprehensive analytical model of rotorcraft aerodynamics and dynamics is presented. This analysis is designed to calculate rotor performance, loads, and noise helicopter vibration and gust response flight dynamics and handling qualities and system aeroelastic stability. The analysis is a combination of structural, inertial, and aerodynamic models that is applicable to a wide range of problems and a wide class of vehicles. The analysis is intended for use in the design, testing, and evaluation of rotors and rotorcraft, and to be a basis for further development of rotary wing theories. The analysis is implemented in a digital computer program.

Descriptors:

• *COMPUTERIZED SIMULATION
• *ROTARY WING AIRCRAFT
• *AERODYNAMIC FORCES
• *ROTARY WINGS
• COMPUTER PROGRAMMING
• AEROELASTICITY
• BENDING MOMENTS
• DIGITAL COMPUTERS
• GUST LOADS
• TORSION
• BENDING STRESS
• AIRCRAFT NOISE
• STRUCTURAL ANALYSIS
• EQUATIONS OF MOTION
• VIBRATION
• STRESS STRAIN RELATIONS
• AERODYNAMIC LOADING

Subject Categories:

• Aerodynamics
• Computer Programming and Software
• Computer Hardware
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE