Vibration, Stability, and Transient Response of Helicopters with Elastically Tailored Composite Rotor Blades.

Abstract

Aeroelastically tailored composite rotor blades offer significant potential for improved stability, reduced vibration, simplified hub design, and improved handling qualities of rotorcraft. Development of new analytical tools to predict the complex dynamic behavior of these rotor systems is essential to the integration of tailored blade technology into next generation rotorcraft systems. The focus of the present work has been: (1) Advancements in analysis methods for open section composite beams, subject to warping restraint effects, (2) Advancement in cross-sectional modeling of thick-walled composite blade sections, (3) Development and application of an aeroelastic analysis for investigation of composite elastic tailoring for stall alleviation and vibration reduction.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 1997
Accession Number
ADA331972

Entities

People

  • Edward C Smith

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Composite Materials
  • Demographic Cohorts
  • Dynamics
  • Engineering
  • Helicopters
  • Materials
  • Military Research
  • National Security
  • Rotary Wing Aircraft
  • Scientists
  • Shear Flow
  • Standards
  • Students
  • Technology Transfer
  • Three Dimensional
  • Transverse
  • Vibration

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Reinforced Composite Materials
  • Structural Dynamics.