Download or read book Earth Return Aerocapture for the TransHab Ellipsled Vehicle written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-30 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current architecture being considered by NASA for a human Mars mission involves the use of an aerocapture procedure at Mars arrival and possibly upon Earth return. This technique would be used to decelerate the vehicles and insert them into their desired target orbits, thereby eliminating the need for propulsive orbital insertions. The crew may make the interplanetary journey in a large, inflatable habitat known as the TransHab. It has been proposed that upon Earth return, this habitat be captured into orbit for use on subsequent missions. In this case, the TransHab would be complimented with an aeroshell, which would protect it from heating during the atmospheric entry and provide the vehicle with aerodynamic lift. The aeroshell has been dubbed the "Ellipsled" because of its characteristic shape. This paper reports the results of a preliminary study of the aerocapture of the TransHab/Ellipsled vehicle upon Earth return. Undershoot and overshoot boundaries have been determined for a range of entry velocities, and the effects of variations in the atmospheric density profile, the vehicle deceleration limit, the maximum vehicle roll rate, the target orbit, and the vehicle ballistic coefficient have been examined. A simple, 180 degree roll maneuver was implemented in the undershoot trajectories to target the desired 407 km circular Earth orbit. A three-roll sequence was developed to target not only a specific orbital energy, but also a particular inclination, thereby decreasing propulsive inclination changes and post-aerocapture delta-V requirements. Results show that the TransHab/Ellipsled vehicle has a nominal corridor width of at least 0.7 degrees for entry speeds up to 14.0 km/s. Most trajectories were simulated using continuum flow aerodynamics, but the impact of high-altitude viscous effects was evaluated and found to be minimal. In addition, entry corridor comparisons have been made between the TransHab/Ellipsled and a modified Apollo capsule which

Download or read book 41st AIAA ASME SAE ASEE Joint Propulsion Conference Exhibit 10 13 July 2005 Tucson Arizona 05 4100 05 4149 written by and published by . This book was released on 2005 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safe on Mars written by National Research Council and published by National Academies Press. This book was released on 2002-05-29 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study, commissioned by the National Aeronautics and Space Administration (NASA), examines the role of robotic exploration missions in assessing the risks to the first human missions to Mars. Only those hazards arising from exposure to environmental, chemical, and biological agents on the planet are assessed. To ensure that it was including all previously identified hazards in its study, the Committee on Precursor Measurements Necessary to Support Human Operations on the Surface of Mars referred to the most recent report from NASA's Mars Exploration Program/ Payload Analysis Group (MEPAG) (Greeley, 2001). The committee concluded that the requirements identified in the present NRC report are indeed the only ones essential for NASA to pursue in order to mitigate potential hazards to the first human missions to Mars.

Download or read book Maintaining U S Leadership in Aeronautics written by National Research Council and published by National Academies Press. This book was released on 1998-10-07 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the completion of the National Research Council (NRC) report, Maintaining U.S. Leadership in Aeronautics: Scenario-Based Strategic Planning for NASA's Aeronautics Enterprise (1997), the National Aeronautics and Space Administration (NASA) Office of Aeronautics and Space Transportation Technology requested that the NRC remain involved in its strategic planning process by conducting a study to identify a short list of revolutionary or breakthrough technologies that could be critical to the 20 to 25 year future of aeronautics and space transportation. These technologies were to address the areas of need and opportunity identified in the above mentioned NRC report, which have been characterized by NASA's 10 goals (see Box ES-1) in "Aeronautics & Space Transportation Technology: Three Pillars for Success" (NASA, 1997). The present study would also examine the 10 goals to determine if they are likely to be achievable, either through evolutionary steps in technology or through the identification and application of breakthrough ideas, concepts, and technologies.

Download or read book Space Safety and Human Performance written by Barbara G. Kanki and published by Butterworth-Heinemann. This book was released on 2017-11-10 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space Safety and Human Performance provides a comprehensive reference for engineers and technical managers within aerospace and high technology companies, space agencies, operators, and consulting firms. The book draws upon the expertise of the world’s leading experts in the field and focuses primarily on humans in spaceflight, but also covers operators of control centers on the ground and behavior aspects of complex organizations, thus addressing the entire spectrum of space actors. During spaceflight, human performance can be deeply affected by physical, psychological and psychosocial stressors. Strict selection, intensive training and adequate operational rules are used to fight performance degradation and prepare individuals and teams to effectively manage systems failures and challenging emergencies. The book is endorsed by the International Association for the Advancement of Space Safety (IAASS). 2019 PROSE Awards - Winner: Category: Engineering and Technology: Association of American Publishers Provides information on critical aspects of human performance in space missions Addresses the issue of human performance, from physical and psychosocial stressors that can degrade performance, to selection and training principles and techniques to enhance performance Brings together essential material on: cognition and human error; advanced analysis methods such as human reliability analysis; environmental challenges and human performance in space missions; critical human factors and man/machine interfaces in space systems design; crew selection and training; and organizational behavior and safety culture Includes an endorsement by the International Association for the Advancement of Space Safety (IAASS)

Download or read book Out of this World written by A. Scott Howe and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collaborative book compiles 30 chapters on the theory and practice of designing and building inhabited environments in outer space. It is rich in graphics including diagrams, design drawings, digital renderings, and photographs of models and operational designs.

Download or read book Procyon s Promise written by Michael McCollum and published by Jabberwocky Literary Agency, Inc.. This book was released on 2020-02-04 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: For millennia, the Makers’ Life Probes explored the farthest reaches of space in search of the secret behind faster-than-light speed. In the 22nd century, the people of Earth made a pact with this far-flung civilization—all of the Makers’ intelligence in exchange for help in their mission. Three hundred years later, descendants of the original Procyon expedition have returned to Earth in a starship. They find a world that has forgotten the generations-old contract. No matter. The returning colonists have overcome far greater obstacles in their single-minded drive to redeem a promise made before any of them were born...

Download or read book Antares Victory written by Michael McCollum and published by Jabberwocky Literary Agency, Inc.. This book was released on 2019-05-01 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a century of warfare, humanity finally discovered the Achilles heel of the Ryall, their xenophobic reptilian foe. Spica – Alpha Virginis – is the key star system in enemy space. It is the hub through which all Ryall starships must pass, and if Alta and their allies can just capture and hold it, they will strangle the Ryall war machine and end its threat to humankind forever. It all seemed so simple in the computer simulations: Advance by stealth, attack without warning, strike swiftly with overwhelming power. Unfortunately, the logistics prove to be the easy part. With the key to victory in hand, Richard and Bethany Drake must temper the volatile role of human nature if they are to bring down the alien foe...

Download or read book Space Doctor written by Lee Correy and published by Ballantine Books. This book was released on 1985-05-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ring of Charon written by Roger MacBride Allen and published by Little Brown GBR. This book was released on 1990 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Larry Chao, experimenting with gravity control and the manufacture of black holes on a research station on Pluto, is dumbfounded when his instruments show planet Earth to have disappeared. But the horror has only just begun. Could the entire Solar System be about to disappear?