Hinge Moments of Sealed-internal-balance Arrangements for Control Surfaces PDF Download
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Author: Harry E. Murray
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 46
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Book Description
Summary: The results of a theoretical analysis of the hinge-moment characteristics of various sealed-internal-balance arrangement for control surfaces are presented. The analysis considered overhangs sealed to various types of wing structure by flexible seals spanning gaps of various widths or sealed to the wing structure by a flexible system of linked plates. Leakage was not considered; the seal was assumed to extend the full spanwise length of the control surface. The effect of the developed width of the flexible seal and of the geometry of the structure to which the seal was anchored was investigated, as well as the effect of the gap width that is sealed.
Author: Harry E. Murray
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 46
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Book Description
Summary: The results of a theoretical analysis of the hinge-moment characteristics of various sealed-internal-balance arrangement for control surfaces are presented. The analysis considered overhangs sealed to various types of wing structure by flexible seals spanning gaps of various widths or sealed to the wing structure by a flexible system of linked plates. Leakage was not considered; the seal was assumed to extend the full spanwise length of the control surface. The effect of the developed width of the flexible seal and of the geometry of the structure to which the seal was anchored was investigated, as well as the effect of the gap width that is sealed.
Author: Jack Fischel
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 66
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Book Description
Summary: Tests were made in a seal test chamber to determine the hinge moments contributed by the fabric seal in an internal-balance arrangement employing a thin-plate over-hang. These tests were performed with various widths of fabric sealing various widths of flap-nose gap, with a horizontal, a vertical, and a circular type of wing structure forward of the balance, and with various heights of balance chamber. This investigation is an experimental verification and extension of a previous analytical investigation. The present investigation indicated that the moment of the seal may be a balancing or an unbalancing moment and may be an appreciable part of the total balancing moment of an internally balanced flap, depending on the overhang deflection and the configuration of the internal balance. Variation of the width of the fabric seal, the sealed gap, or the location of the seal attachment to the wing structure affected the seal moments through most of the over-hang deflection range. The shape and size of the balance chamber affected the seal-moment characteristics in the deflection range where the seals contacted and were constrained by the chamber walls; the values of the seal moments were usually reduced when the seals were constrained. The results indicated also that an optimum balance configuration would employ a seal width such that the seal would barely touch the chamber ceiling when maximum overhang deflection is attained.
Author: Langley Aeronautical Laboratory
Publisher: Hassell Street Press
ISBN: 9781015323957
Category :
Languages : en
Pages : 46
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Langley Aeronautical Laboratory
Publisher: Hassell Street Press
ISBN: 9781014156839
Category :
Languages : en
Pages : 66
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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 762
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Book Description
Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 288
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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 358
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Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 496
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1160
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Book Description
