Vibration and flutter characteristics of the SR7L large-scale propfan
Read Online
Share

Vibration and flutter characteristics of the SR7L large-scale propfan

  • 330 Want to read
  • ·
  • 0 Currently reading

Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC] .
Written in English

Subjects:

  • Structural design.

Book details:

Edition Notes

StatementRichard August and Krishna Rao V. Kaza.
SeriesNASA technical memorandum -- 100272
ContributionsKaza, K. R. V., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL17095429M

Download Vibration and flutter characteristics of the SR7L large-scale propfan

PDF EPUB FB2 MOBI RTF

Get this from a library! Vibration and flutter characteristics of the SR7L large-scale propfan. [Richard August; K R V Kaza; United States. National Aeronautics and Space Administration.]. The principle objectives of this study are to perform parametric studies of the SR7L propfan to determine the correct support stiffness values for use in the blade finite element model; to use the resulting model to calculate the vibration characteristics at the design rotational speed; and then to calculate unstalled flutter stability at the design condition, as well as to examine the cascade effects on the blade's . An investigation of the vibration characteristics and aeroelastic stability of the SR7L Large-Scale Advanced Propfan was performed using a finite element blade model Author: Krishna Rao V. Kaza and Richard August. An investigation of the vibration, performance, flutter, and forced response of the large-scale propfan, SR7L, and its aeroelastic model, SR7A, has been performed by applying available structural and aeroelastic analytical codes and then correlating measured and calculated : Richard August and Krishna Rao V. Kaza.

An investigation of the vibration, performance, flutter, and forced response of the large-scale propfan, SR7L, and its aeroelastic model, SR7A, has been performed by applying available structural and aeroelastic analytical codes and then correlating measured and calculated results. An investigation of the vibration, performance, flutter, and forced response of the large-scale propfan, SR7L, and its aeroelastic model, SR7A, has been performed by applying available structural.   [44] August R. and Kaza K., “ Vibration, Performance, Flutter and Forced Response Characteristics of a Large-Scale Propfan and its Aeroelastic Author: Davide Prederi, Andrea Parrinello, Andrea Gadda, Paolo Mantegazza. In view of aeroelastic stability, the flutter modes and critical dynamic pressures are very different for the three structural models. The critical aerodynamic pressure of model (c) is the highest at β ∗ = with flutter modes (1, 4) and (2, 4). The flutter mode coalescence of model (a) is shown in Fig. flutter occurs at the merge of modes (1, 1) and (2, 1) as marked with solid Cited by:

This paper presents an in-depth study of blade vibration problems that seriously impact development of advanced gas turbine configurations. The motivation for this study arises from the author’s conviction that structural integrity of power plants is the dominant factor that influences the quality, reliability, and marketability of the by: An investigation of the vibration, performance, flutter, and forced response of the large-scale propfan, SR7L, and its aeroelastic model, SR7A, has been performed by applying available structural Author: Nesrin Sarigul-Klijn. The vibration characteristic near the main critical speed p f = ω is investigated with a theoretical analysis when the axial displacement is changed. In analysis, the symbol ε, which expresses small quantity, is introduced and the symbol O(ε) expresses its imate solution is assumed as follows in accuracy of O(ε)[12]. Instrumentation for Vibration measurement in flight 3 The general measurement problem Instrumentation Amplifiers Recorders 3 4 z Plight Vibration testing 5 Typical pmgrsxme for flight vibration tests 6 Limitations of control jerking Special problems of forced vibration Plight flutter File Size: 2MB.