Download or read book Study of Entry Descent and Landing of a Low Mass System at Mars written by Oscar Toledo Farrando and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the Mariner 4 Martian mission, which was the rst one in succeeding in the red planet, the spatial race to study Mars has experimented a huge growth. One of its challenges is to deal with the thin atmosphere of the red planet, which demands very accurate design of the entry, descent and landing (EDL) system. This thesis develops a preliminary design of the EDL system of a small payload (see (Pasolini et al., 2017)), which consists of an aeroshell system for the reentry and the hypersonic and supersonic phases. Once the capsule has reached a subsonic velocity, a parachute is used for descent in the last ight phase. This project also includes the development of a parametric ight simulator to calculate the trajectory of the capsule. A CFD model is used to calculate the aerodynamic parameters of the hypersonic and supersonic phases. For the subsonic ight, as there is a wide variety of results in the literature, a suitable parachute model is selected from existing experimental data.
Download or read book Human Missions to Mars written by Donald Rapp and published by Springer Nature. This book was released on 2023-01-01 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, Donald Rapp looks at human missions to Mars from a technological perspective. He divides the mission into a number of stages: Earth’s surface to low-Earth orbit (LEO); departing from LEO toward Mars; Mars orbit insertion and entry, descent and landing; ascent from Mars; trans-Earth injection from Mars orbit and Earth return. A mission to send humans to explore the surface of Mars has been the ultimate goal of planetary exploration since the 1950s, when von Braun conjectured a flotilla of 10 interplanetary vessels carrying a crew of at least 70 humans. Since then, more than 1,000 studies were carried out. This third edition provides extensive updating and additions to the last edition, including new sections, and many new figures and tables, and references.
Download or read book A Review of High speed Convective Heat transfer Computation Methods written by Michael E. Tauber and published by . This book was released on 1989 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Entry Descent and Landing Systems for Mars written by R. Gannon and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entry descent and landing systems analysis study written by and published by . This book was released on 2011 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landing Site Dispersions of an Uncontrolled Lander on Mars written by John S. White and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entry Descent and Landing Vehicle Design Space Exploration for Crewed Mars Missions written by Zahra Khan and published by . This book was released on 2008 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: (cont.) For an entry mass of 62.5 mT (corresponding to a two Ares V launches), a moderate aeroshell mass fraction and a low-lying landing site, a significant payload of around 26 metric tons can be delivered to the Martian surface with two Ares V launches. This indicates that, from a landed mass perspective, a crewed Mars mission is feasible using the moderate lift reference vehicle, since the minimum landed mass requirements for such a mission are on the order of 20 to 30 metric tons.
Download or read book 1969 NASA Authorization Hearings written by United States. Congress. House. Science and Astronautics and published by . This book was released on 1968 with total page 1606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1969 NASA Authorization written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1968 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Committee Serial No. 3. Considers H.R. 15856, a revised version of H.R. 15086; pt. 3: Continuation of hearings on H.R. 15086 (subsequently replaced by H.R. 15856), to authorize NASA funding for FY69. Focuses on progress of lunar and other planetary exploration programs of the Office of Space Science and Applications; pt. 4: Focuses on progress of technological utilization, and data tracking acquisition programs of the Office of Advanced Research and Technology; Index: Index to hearings considering H.R. 15086, (subsequently replaced by H.R. 15856), to authorize NASA funding for FY69
Download or read book Hearings written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1968 with total page 1776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Astrobiology Strategy for the Exploration of Mars written by National Research Council and published by National Academies Press. This book was released on 2007-06-26 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three recent developments have greatly increased interest in the search for life on Mars. The first is new information about the Martian environment including evidence of a watery past and the possibility of atmospheric methane. The second is the possibility of microbial viability on Mars. Finally, the Vision for Space Exploration initiative included an explicit directive to search for the evidence of life on Mars. These scientific and political developments led NASA to request the NRC's assistance in formulating an up-to-date integrated astrobiology strategy for Mars exploration. Among other topics, this report presents a review of current knowledge about possible life on Mars; an astrobiological assessment of current Mars missions; a review of Mars-mission planetary protection; and findings and recommendations. The report notes that the greatest increase in understanding of Mars will come from the collection and return to Earth of a well-chosen suite of Martian surface materials.
Download or read book Simulation Framework for Rapid Entry Descent and Landing Edl Analysis Phase 2 Results written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Engineering and Safety Center (NESC) was requested to establish the Simulation Framework for Rapid Entry, Descent, and Landing (EDL) Analysis assessment, which involved development of an enhanced simulation architecture using the Program to Optimize Simulated Trajectories II simulation tool. The assessment was requested to enhance the capability of the Agency to provide rapid evaluation of EDL characteristics in systems analysis studies, preliminary design, mission development and execution, and time-critical assessments. Many of the new simulation framework capabilities were developed to support the Agency EDL-Systems Analysis (SA) team that is conducting studies of the technologies and architectures that are required to enable human and higher mass robotic missions to Mars. The findings, observations, and recommendations from the NESC are provided in this report. Murri, Daniel G. Langley Research Center MARS MISSIONS; LANDING; DESCENT; SUPPORT SYSTEMS; TRAJECTORIES; SYSTEMS ANALYSIS; TIME DEPENDENCE; ROBOTICS; MISSION PLANNING; SIMULATION; SAFETY
Download or read book Mars Science Laboratory Entry Descent and Landing Instrumentation written by National Aeronautics and Space Administration and published by Createspace Independent Publishing Platform. This book was released on 2017-01-17 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: On August 6, 2012 (1:31 AM EDT), the Mars Science Laboratory (MSL) successfully traversed the atmosphere to land on Mars. But by the time the sky crane lowered the Curiosity rover to the surface, one experiment (the MSL Entry Descent and Landing (EDL) Instrumentation (MEDLI) suite) had already collected all of its data. For the entire atmospheric entry phase, from just before atmospheric interface until it was powered off approximately 10 seconds after the parachute was deployed, MEDLI monitored the entry vehicle's surface pressures and heatshield temperatures. MEDLI delivered the first in-depth understanding of the Mars entry environments and the response of the entry vehicle to those environments. Previous Mars entry missions assessed their entry performance (vehicle drag and stability) via the observed initial states coupled with the onboard inertial measurement unit (IMU) data. This approach is devoid of environmental measurements, so total drag force cannot be decomposed into aerodynamics and atmospheric conditions. In addition, no through-thickness measurements to ascertain heatshield thermal protection system (TPS) performance were taken on previous entry missions. MEDLI culminated decades of advocacy by the EDL community for entry vehicle instrumentation. The fate of the Genesis and Stardust sample return missions served as an impetus for this advocacy. On September 8, 2004, an incorrectly installed g-trigger did not command deployment of its drogue chute, and the Genesis capsule tumbled through the atmosphere. The plan had called for a mid-air retrieval via its slow-descent parafoil to avoid landing impact loads, but instead the parafoil did not deploy and the Genesis capsule crashed into the ground. The minimal EDL data available from Genesis also slowed the mishap investigation. Sixteen months later, on January 15, 2006, a successful Stardust return prompted the NASA Administrator to request an assessment of how the vehicle performed. Since the capsule was not instrumented, the ability to quantify vehicle stability and drag performance, as well as the heating environment and the response of the TPS to that environment, was limited. As a result, the Administrator mandated that NASA should instrument all future atmospheric entry systems.
Download or read book Simulation Framework for Rapid Entry Descent and Landing Edl Analysis Volume 2 Appendices written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Engineering and Safety Center (NESC) was requested to establish the Simulation Framework for Rapid Entry, Descent, and Landing (EDL) Analysis assessment, which involved development of an enhanced simulation architecture using the Program to Optimize Simulated Trajectories II (POST2) simulation tool. The assessment was requested to enhance the capability of the Agency to provide rapid evaluation of EDL characteristics in systems analysis studies, preliminary design, mission development and execution, and time-critical assessments. Many of the new simulation framework capabilities were developed to support the Agency EDL Systems Analysis (EDL-SA) team, that is conducting studies of the technologies and architectures that are required to enable higher mass robotic and human mission to Mars. The appendices to the original report are contained in this document. Murri, Daniel G. Langley Research Center DESCENT; SYSTEMS ANALYSIS; TRAJECTORIES; ATMOSPHERIC ENTRY; SPACECRAFT LANDING; SUPPORT SYSTEMS; MARS MISSIONS; MISSION PLANNING; TIME DEPENDENCE; SIMULATION; ROBOTICS; SAFETY
Download or read book Assessment of NASA s Mars Architecture 2007 2016 written by National Research Council and published by National Academies Press. This book was released on 2006-09-21 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States and the former Soviet Union have sent spacecraft to mars as early as 1966, with Mars' exploration being priority for NASA spacecraft. Both sides, however, have failed as well as succeed. The inability to determine if life exists on Mars is considered one of NASA's failures and undercut political support for additional Mars missions in the U.S. until the launch of the Mars Observer in 1992. Thus, the exploration of life on Mars continues, but with a new approach. Assessment of NASA's Mars Architecture, 2007-2016 is an assessment by the Committee to Review the Next Decade Mars Architecture of the National Research Council (NRC) conducted by request of Dr. Mary Cleave, NASA's Associate Administrator for the Science Mission Directorate. The Committee addresses the following questions: Is the Mars architecture reflective of the strategies, priorities, and guidelines put forward by the National Research Council's solar system exploration decadal survey and related science strategies and NASA plans?, Does the revised Mars architecture address the goals of NASA's Mars Exploration Program and optimize the science return, given the current fiscal posture of the program?, and Does the Mars architecture represent a reasonably balanced mission portfolio? After several months of study, consideration and incorporation of the guidance from NRC studies, especially New Frontiers in the Solar System, and the Vision for Space Exploration; community consultations via individual inputs; and a MEPAG-sponsored working group, a plan was created. This report includes the plan, which has an Astrobiology Field Laboratory or two Mild Rovers mission planned for 2016, recommendations from the committee, NRC guidelines for mars exploration, and more.
Download or read book Hearings Reports and Prints of the House Committee on Science and Astronautics written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1968 with total page 1622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the 90 day Study on Human Exploration of the Moon and Mars written by United States and published by . This book was released on 1989 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
