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Monday, November 16, 2020 | History

2 edition of Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal found in the catalog.

Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal

L. Roane Hunt

Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal

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Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Spingfield, Va .
Written in English

    Subjects:
  • Reusable space vehicles -- Design and construction.

  • Edition Notes

    StatementL. Roane Hunt.
    SeriesNASA technical memorandum -- 80093
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
    The Physical Object
    Pagination27 p. :
    Number of Pages27
    ID Numbers
    Open LibraryOL17071357M

    Opt for this Passage Door Perimeter Bulb Seal Kit if you want a quality, airtight option to help seal out drafts and cold on your residential or commercial walk-through door. Designed to suit doors up to 3 feet wide and 7 feet tall, this bulb seal kit comes with everything you need for uncomplicated : $ due to the time money and effort they can save over the life of the split seal. A E. McFadden Ave. Santa Ana, California Phone: () Fax: () [email protected]   The most crucial part of a mechanical seal is the circle where rotary and stationary seal rings touch (see Figure 1). That's where the action occurs. A rubbing, frictional contact simultaneously generates heat and seals fluid. Selecting the right seal rings ensures reliability.


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Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal by L. Roane Hunt Download PDF EPUB FB2

Design details for the membrane-seal design are presented in reference 3. TESTS Specimens The four P-bulb end-seal test specimens are shown in figure 3. The specimens are made of silicone rubber and the membrane is reinforced with Nomex fibers and steel battens. The basic P-bulb cross section is oval, cm long and cm wide.

Speci­. Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal. Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Spingfield, Va.

Four P-bulb end seal designs were tested at room temperature in a cyclic seal test apparatus. Test results show that all the P-bulb end seals have the durability required for a mission life (neglecting possible elevated-temperature effects) and three of the four P-bulbs provide an adequate seal against a kPa air pressure : L.

Hunt. Cyclic tests of P-bulb end-seal designs for a shuttle-type wing-elevon cove membrane seal / By L. Roane (Lewis Roane) Hunt and United States.

National Aeronautics and Space Administration. Although the membrane seal offers high potential for use as a cove seal, the ends of the membrane must also be sealed against chordwise walls such as at wing stubs. Therefore, two design concepts were developed for sealing the ends of the membrane against end plates in the cove seal test apparatus but which would also be applicable in a flight vehicle.

Four P-bulb end seal designs were tested at room temperature in a cyclic seal test apparatus. Type 9 Seals are standard for use where corrosive liquids are being processed. PTFE Wedge construction of the secondary sealing element provides virtually universal service application. A snap ring holds all parts together in a unitized construction design which eases installation and Size: KB.

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The radially contact pressure will be forced by the circulating tube spring, which also traces the rings back in position after deflection. The common force should be 1 – 1,5 N/cm² surface pressure.

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TABLE OF CONTENTS TAB GLAND DESIGN MATERIAL SELECTION O-RING SIZE CHARTS AND O-RING FAILURE O-RING APPLICATIONS 73 - 76 O-Ring Failure 61 - 78 Gland Design 36 - 43 Static Axial Seal Gland Dimensions 44 - 52 Static Radial Seal Dimensions 53 - 56 Dynamic Radial Seal Gland Dimensions 57 - 60 Rotary O-Ring Seal Gland Dimensions 35 - 60 Material.

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