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Hypersonic Panel Flutter In A Rarefied Atmosphere
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723149528 Total Pages :124 pages Book Rating :4.1/5 (495 download)
Book Synopsis Hypersonic Panel Flutter in a Rarefied Atmosphere by : National Aeronautics and Space Administration (NASA)
Download or read book Hypersonic Panel Flutter in a Rarefied Atmosphere written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Panel flutter is a form of dynamic aeroelastic instability resulting from the interaction between motion of an aircraft structural panel and the aerodynamic loads exerted on that panel by air flowing past one of the faces. It differs from lifting surface flutter in the sense that it is not usually catastrophic, the panel's motion being limited by nonlinear membrane stresses produced by the transverse displacement. Above some critical airflow condition, the linear instability grows to a limit cycle . The present investigation studies panel flutter in an aerodynamic regime known as 'free molecule flow', wherein intermolecular collisions can be neglected and loads are caused by interactions between individual molecules and the bounding surface. After collision with the panel, molecules may be reflected specularly or reemitted in diffuse fashion. Two parameters characterize this process: the 'momentum accommodation coefficient', which is the fraction of the specularly reflected molecules; and the ratio between the panel temperature and that of the free airstream. This model is relevant to the case of hypersonic flight vehicles traveling at very high altitudes and especially for panels oriented parallel to the airstream or in the vehicle's lee. Under these conditions the aerodynamic shear stress turns out to be considerably larger than the surface pressures, and shear effects must be included in the model. This is accomplished by means of distributed longitudinal and bending loads. The former can cause the panel to buckle. In the example of a simply-supported panel, it turns out that the second mode of free vibration tends to dominate the flutter solution, which is carried out by a Galerkin analysis. Several parametric studies are presented. They include the effects of (1) temperature ratio; (2) momentum accommodation coefficient; (3) spring parameters, which are associated with how the panel is connected to adjacent structures; (4) a parameter which relates compressive ...
Book Synopsis Hypersonic Panel Flutter in a Rarefied Atmosphere by : Hugo B. Resende
Download or read book Hypersonic Panel Flutter in a Rarefied Atmosphere written by Hugo B. Resende and published by . This book was released on 1991 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Panel Flutter in a Rarefied Atmosphere by : Hugo B. Resende
Download or read book Hypersonic Panel Flutter in a Rarefied Atmosphere written by Hugo B. Resende and published by . This book was released on 1993 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and Structural Dynamics 1999 by :
Download or read book CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and Structural Dynamics 1999 written by and published by . This book was released on 1999 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings represent a collection of the latest advances in aeroelasticity and structural dynamics from the world community. Research in the areas of unsteady aerodynamics and aeroelasticity, structural modeling and optimazation, active control and adaptive structures, landing dynamics, certification and qualification, and validation testing are highlighted in the collection of papers. The wide range of results will lead to advances in the prediction and control of the structural response of aircraft and spacecraft.
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Download or read book Aeronautical Engineering written by and published by . This book was released on 1971 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Book Synopsis Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Second Annual Report by : Stanford University. Department of Aeronautics and Astronautics
Download or read book Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Second Annual Report written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1967 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Third Final Report by : Stanford University. Department of Aeronautics and Astronautics
Download or read book Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Third Final Report written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1968 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter by : Stanford University. Department of Aeronautics and Astronautics
Download or read book Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1974 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Flutter of a Curved Shallow Panel with Aerodynamic Heating by : T. Bein
Download or read book Hypersonic Flutter of a Curved Shallow Panel with Aerodynamic Heating written by T. Bein and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Fourth Annual Report by : Stanford University. Department of Aeronautics and Astronautics
Download or read book Theoretical Considerations of Some Nonlinear Aspects of Hypersonic Panel Flutter, Fourth Annual Report written by Stanford University. Department of Aeronautics and Astronautics and published by . This book was released on 1969 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
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Book Synopsis The 34th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Adaptive Structures Forum: 93-1300 - 93-1369 by :
Download or read book The 34th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Adaptive Structures Forum: 93-1300 - 93-1369 written by and published by . This book was released on 1993 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
