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Download or read book 2001 Nasa Seal/secondary Air System Workshop ... Nasa/cp--2002-211911/vol. 2 ... National Aeronautics and Space Administration ... October 2002 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2001 NASA SEAL/SECONDARY AIR SYSTEM WORKSHOP... NASA/CP--2001-211911/VOL.1... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION... OCTOBER 2002 written by and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (317 download)
Download or read book 2001 NASA Seal/Secondary Air System Workshop written by and published by . This book was released on 2002 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : NASA Glenn Research Center
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (247 download)
Download or read book NASA Seal/Secondary Air Workshop written by NASA Glenn Research Center and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 394 pages
Book Rating : 4.:/5 (71 download)
Download or read book 2004 NASA Seal/Secondary Air System Workshop written by and published by . This book was released on 2005 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (317 download)
Download or read book 1998 NASA Seal/Secondary Air System Workshop written by and published by . This book was released on 1999 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 544 pages
Book Rating : 4.:/5 (317 download)
Download or read book 1999 NASA Seal/Secondary Air System Workshop written by and published by . This book was released on 2000 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : NASA Glenn Research Center
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (247 download)
Download or read book NASA Glenn Seals/Secondary Air System Workshop written by NASA Glenn Research Center and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720649595
Total Pages : 50 pages
Book Rating : 4.6/5 (495 download)
Download or read book Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals. Volume 1; Executive Summary and Description of Knowledge-Based System written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allows the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines.Liang, Anita D. (Technical Monitor) and Shapiro, Wilbur and Aggarwal, BharatGlenn Research CenterSEALS (STOPPERS); THREE DIMENSIONAL FLOW; COMPUTATIONAL FLUID DYNAMICS; FLOW DISTRIBUTION; AIR BREATHING ENGINES; CYLINDRICAL BODIES; GRAPHICAL USER INTERFACE; EXPERT SYSTEMS
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721142620
Total Pages : 140 pages
Book Rating : 4.1/5 (426 download)
Download or read book Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals. Volume 2; Description of Gas Seal Codes Gcylt and Gface written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines. Liang, Anita D. (Technical Monitor) and Shapiro, Wilbur Glenn Research Center NAS3-25644; WBS 22-5000-0013
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721152339
Total Pages : 128 pages
Book Rating : 4.1/5 (523 download)
Download or read book Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals. Volume 5; Description of Seal Dynamics Code Dyseal and Labyrinth Seals Code Ktk written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines Shapiro, Wilbur and Chupp, Raymond and Holle, Glenn and Scott, Thomas Glenn Research Center NAS3-25644; WBS 22-00-00
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720649793
Total Pages : 86 pages
Book Rating : 4.6/5 (497 download)
Download or read book Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals. Volume 4; Description of Incompressible Fluid Seal Codes Icyl and Iface written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines.Liang, Anita D. (Technical Monitor) and Artiles, AntonioGlenn Research CenterSEALS (STOPPERS); COMPUTATIONAL FLUID DYNAMICS; AIR BREATHING ENGINES; FLOW DISTRIBUTION; ROTOR DYNAMICS; THREE DIMENSIONAL FLOW; CYLINDRICAL BODIES; GRAPHICAL USER INTERFACE; EXPERT SYSTEMS
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721142774
Total Pages : 116 pages
Book Rating : 4.1/5 (427 download)
Download or read book Numerical, Analytical, Experimental Study of Fluid Dynamic Forces in Seals. Volume 3; Description of Spiral-Groove Codes Spiralg and Spirali written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code SCISEAL is capable of producing full three-dimensional flow field information for a variety of cylindrical configurations. An implicit multidomain capability allow the division of complex flow domains to allow optimum use of computational cells. SCISEAL also has the unique capability to produce cross-coupled stiffness and damping coefficients for rotordynamic computations. The industrial codes consist of a series of separate stand-alone modules designed for expeditious parametric analyses and optimization of a wide variety of cylindrical and face seals. Coupled through a Knowledge-Based System (KBS) that provides a user-friendly Graphical User Interface (GUI), the industrial codes are PC based using an OS/2 operating system. These codes were designed to treat film seals where a clearance exists between the rotating and stationary components. Leakage is inhibited by surface roughness, small but stiff clearance films, and viscous pumping devices. The codes have demonstrated to be a valuable resource for seal development of future air-breathing and space propulsion engines. Liang, Anita D. (Technical Monitor) and Walowit, Jed and Shapiro, Wilbur Glenn Research Center NAS3-25644; WBS 22-5000-0013
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721150342
Total Pages : 160 pages
Book Rating : 4.1/5 (53 download)
Download or read book Analysis of Coupled Seals, Secondary and Powerstream Flow Fields in Aircraft and Aerospace Turbomachines written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Higher power, high efficiency gas turbine engines require optimization of the seals and secondary flow systems as well as their impact on the powerstream. This work focuses on two aspects: 1. To apply the present day CFD tools (SCISEAL) to different real-life secondary flow applications from different original equipment manufacturers (OEM s) to provide feedback data and 2. Develop a computational methodology for coupled time-accurate simulation of the powerstream and secondary flow with emphasis on the interaction between the disk-cavity and rim seals flows with the powerstream (SCISEAL-MS-TURBO). One OEM simulation was of the Allison Engine Company T-56 turbine drum cavities including conjugate heat transfer with good agreement with data and provided design feedback information. Another was the GE aspirating seal where the 3-D CFD simulations played a major role in analysis and modification of that seal configuration. The second major objective, development of a coupled flow simulation capability was achieved by using two codes MS-TURBO for the powerstream and SCISEAL for the secondary flows with an interface coupling algorithm. The coupled code was tested against data from three differed configurations: 1. bladeless-rotor-stator-cavity turbine test rig, 2. UTRC high pressure turbine test rig, and, 3. the NASA Low-Speed-Air Compressor rig (LSAC) with results and limitations discussed herein. Athavale, M. M. and Ho, Y. H. and Prezekwas, A. J. Glenn Research Center NAS3-27392
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781725568754
Total Pages : 38 pages
Book Rating : 4.5/5 (687 download)
Download or read book Chemseal 3808-A2 Penetration Into Small Leak Path written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A possible fix to a leak in the oxidizer system of the Space Shuttle Discovery's attitude control system was proposed by MSFC. This fix involved the passing of a shuttlecock past the leaking Dynaflow fitting and sealing the vent tube containing the fitting with Chemseal 3808-A2. The question of whether the Chemseal 3808-A2 can flow into the leak path and provide a better seal was addressed analytically and by experiment to verify the analytical formula used. The results show that the equations are applicable and that the Chemseal will flow into the expected leak path and seal. Carruth, M. R., Jr. and Dehaye, R. F. Marshall Space Flight Center NASA-TM-100345, NAS 1.15:100345 ...
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722160784
Total Pages : 32 pages
Book Rating : 4.1/5 (67 download)
Download or read book Development of a New Seal for Use on Large Openings of Pressurized Spacecraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project was to design, build, and test an example of the seal invented by the author for use on Space Station Freedom and patented in 1991. The seal features a metallic spring core and replaceable elastomeric sealing elements. The metallic spring is designed to retain the sealing force of the elastomeric element against both sides of face seal gland for any specified amount of waviness or separation of the glands. A seal able to tolerate at least 1.3 mm (0.05 in) of flange distortion or separation and a test fixture of this seal which allowed direct comparison testing of O-rings were built. These designs were tested to compare leakage at different amounts of flange deflection. Results of the testing show the development seal exceeded its requirement to seal 1.3 mm of flange separation by 1 mm. This compared with the O-ring leakage, increasing dramatically at 0.5 mm of separation. The development seal also leaked at a lower rate than the O-ring seals in all tests. Weddendorf, B. Marshall Space Flight Center PROJ. 92-11...
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722399788
Total Pages : 84 pages
Book Rating : 4.3/5 (997 download)
Download or read book Flight Set 360l007 (Sts-33r) Case and Seals written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of the 360L007, Seventh Flight, redesigned Solid Rocket Motors (RSRM) is assessed with respect to case hardware and joint sealing issues as seen from post-flight assessment of the case and seals. Potential anomalies are classified and summarized. The post-flight assessment of both motors showed the case segments to be in good condition. Field joint fretting indications on this flight set ranged from none on one joint through light (less than 0.003 inch deep) on most of the joints to locally medium (greater than 0.003, less than 0.005 inch deep) on two joints. No new fretting was found in old fretting locations. All fretting was mapped from the inner clevis leg. The capture feature fretting was not mapped due to the difficulty of measuring the fretting in the capture feature region, but it is assumed that the capture feature had similar damage as the inner clevis leg. Post-flight assessment of both motors showed the seal components to be in good condition. Carlisle, Alan R. Unspecified Center...
