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Book Synopsis SEDS Tether M/OD Damage Analyses by : K. B. Hayashida
Download or read book SEDS Tether M/OD Damage Analyses written by K. B. Hayashida and published by . This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
The Small Expendable Deployer System (SEDS) was designed to deploy an endmass at the end of a 20-km-long tether which acts as an upper stage rocket, and the threats from the meteoroid and orbital debris (M/OD) particle environments on SEDS components are important issues for the safety and success of any SEDS mission. However, the possibility of severing the tether due to M/OD particle impacts is an even more serious concern, since the SEDS tether has a relatively large exposed area to the M/OD environments although its diameter is quite small. The threats from the M/OD environments became a very important issue for the third SEDS mission, since the project office proposed using the shuttle orbiter as a launch platform instead of the second stage of a Delta II expendable rocket, which was used for the first two SEDS missions. A series of hyper-velocity impact tests were performed at the Johnson Space Center and Arnold Engineering Development Center to help determine the critical particle sizes required to sever the tether. The computer hydrodynamic code or hydrocode called CTH, developed by the Sandia National Laboratories, was also used to simulate the damage on the SEDS tether caused by both the orbital debris and test particle impacts. The CTH hydrocode simulation results provided the much needed information to help determine the critical particle sizes required to sever the tether. The M/OD particle sizes required to sever the tether were estimated to be less than 0.1 cm in diameter from these studies, and these size particles are more abundant in low-Earth orbit than larger size particles. Finally, the authors performed the M/OD damage analyses for the three SEDS missions; i.e., SEDS-1, -2, and -3 missions, by using the information obtained from the hypervelocity impact test and hydrocode simulations results. Hayashida, K. B. and Robinson, J. H. and Hill, S. A. Marshall Space Flight Center ...
Book Synopsis Seds Tether M/Od Damage Analyses by : National Aeronautics and Space Adm Nasa
Download or read book Seds Tether M/Od Damage Analyses written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-18 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Small Expendable Deployer System (SEDS) was designed to deploy an endmass at the end of a 20-km-long tether which acts as an upper stage rocket, and the threats from the meteoroid and orbital debris (M/OD) particle environments on SEDS components are important issues for the safety and success of any SEDS mission. However, the possibility of severing the tether due to M/OD particle impacts is an even more serious concern, since the SEDS tether has a relatively large exposed area to the M/OD environments although its diameter is quite small. The threats from the M/OD environments became a very important issue for the third SEDS mission, since the project office proposed using the shuttle orbiter as a launch platform instead of the second stage of a Delta II expendable rocket, which was used for the first two SEDS missions. A series of hyper-velocity impact tests were performed at the Johnson Space Center and Arnold Engineering Development Center to help determine the critical particle sizes required to sever the tether. The computer hydrodynamic code or hydrocode called CTH, developed by the Sandia National Laboratories, was also used to simulate the damage on the SEDS tether caused by both the orbital debris and test particle impacts. The CTH hydrocode simulation results provided the much needed information to help determine the critical particle sizes required to sever the tether. The M/OD particle sizes required to sever the tether were estimated to be less than 0.1 cm in diameter from these studies, and these size particles are more abundant in low-Earth orbit than larger size particles. Finally, the authors performed the M/OD damage analyses for the three SEDS missions; i.e., SEDS-1, -2, and -3 missions, by using the information obtained from the hypervelocity impact test and hydrocode simulations results. Hayashida, K. B. and Robinson, J. H. and Hill, S. A. Marshall Space Flight Center ...
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1970 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FY 1998 Scientific and Technical Reports, Articles, Papers, and Presentations by :
Download or read book FY 1998 Scientific and Technical Reports, Articles, Papers, and Presentations written by and published by . This book was released on 1999 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Analysis of Space Tether Missions by : Evgeniĭ Mikhaĭlovich Levin
Download or read book Dynamic Analysis of Space Tether Missions written by Evgeniĭ Mikhaĭlovich Levin and published by Univelt Incorporated. This book was released on 2007 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 20-23, 2003, Huntsville, Alabama: 03-5200 - 03-5249 by :
Download or read book 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 20-23, 2003, Huntsville, Alabama: 03-5200 - 03-5249 written by and published by . This book was released on 2003 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FY 1995 Scientific and Technical Reports, Articles, Papers, and Presentations, Volume 1 by :
Download or read book FY 1995 Scientific and Technical Reports, Articles, Papers, and Presentations, Volume 1 written by and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tether Technology Interchange Meeting by :
Download or read book Tether Technology Interchange Meeting written by and published by . This book was released on 1998 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Rothman-Simeone The Spine helps you achieve optimal outcomes in the clinical practice of spine surgery in adults and children. Drs. Harry N. Herkowitz, Steven R. Garfin, Frank J. Eismont, Gordon R. Bell, Richard Balderston, and an internationally diverse group of authorities help you keep up with the fast-paced field and get the best results from state-of-the-art treatments and surgical techniques, such as spinal arthroplasty and the latest spinal implants and equipment. An all-new full-color design and surgical videos online at www.expertconsult.com make this classic text more invaluable than ever before. Get the best results from the full range of both surgical and non-surgical treatment approaches with guidance from the world’s most trusted authorities in orthopaedic spine surgery. Find important information quickly through pearls, pitfalls, and key points that highlight critical points. Watch experts perform key techniques in real time with videos, on DVD and online, demonstrating minimally invasive surgery: SED procedure; thorascopic techniques; lumbar discectomy; pedicle subtraction osteotomy (PSO); C1, C2 fusion; intradural tumor; cervical laminoforaminoty; and much more. Apply the newest developments in the field thanks to expert advice on minimally invasive surgery, spinal arthroplasty and the latest spinal implants and equipments. See procedures clearly through an all new full-color design with 2300 color photographs and illustrations placed in context. Access the fully searchable contents of text online at www.expertconsult.com.
Book Synopsis Rothman-Simeone The Spine E-Book by : Harry N. Herkowitz
Download or read book Rothman-Simeone The Spine E-Book written by Harry N. Herkowitz and published by Elsevier Health Sciences. This book was released on 2011-02-10 with total page 2021 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rothman-Simeone The Spine helps you achieve optimal outcomes in the clinical practice of spine surgery in adults and children. Drs. Harry N. Herkowitz, Steven R. Garfin, Frank J. Eismont, Gordon R. Bell, Richard Balderston, and an internationally diverse group of authorities help you keep up with the fast-paced field and get the best results from state-of-the-art treatments and surgical techniques, such as spinal arthroplasty and the latest spinal implants and equipment. An all-new full-color design and surgical videos online at www.expertconsult.com make this classic text more invaluable than ever before. Get the best results from the full range of both surgical and non-surgical treatment approaches with guidance from the world’s most trusted authorities in orthopaedic spine surgery. Find important information quickly through pearls, pitfalls, and key points that highlight critical points. Watch experts perform key techniques in real time with videos, on DVD and online, demonstrating minimally invasive surgery: SED procedure; thorascopic techniques; lumbar discectomy; pedicle subtraction osteotomy (PSO); C1, C2 fusion; intradural tumor; cervical laminoforaminoty; and much more. Apply the newest developments in the field thanks to expert advice on minimally invasive surgery, spinal arthroplasty and the latest spinal implants and equipments. See procedures clearly through an all new full-color design with 2300 color photographs and illustrations placed in context. Access the fully searchable contents of text online at www.expertconsult.com.