637118main khoshnevis presentation
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This document discusses Contour Crafting, a proposed method for constructing infrastructure on the moon or other planets using 3D printing technologies. It describes how a Contour Crafting machine could be used to build full-scale concrete structures layer by layer without formwork by depositing materials like sulfur concrete or molten regolith reinforced with fibers. The document outlines plans to use this method to construct basic lunar infrastructure elements like landing pads, blast walls, roads, and hangars, as well as more complex structures like habitats, greenhouses, and laboratories. Environmental forces, available materials, and design methods are evaluated for withstanding conditions like impacts, thermal stresses, dust, and low gravity.
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This document summarizes potential paths to the extinction of the US Air Force by 2025. Externally, extinction could occur through the ascendancy of other military services, economic constraints, changes in strategic environment/policy, technological changes, or the rise of jointness. Internally, extinction could result from losing its vision/mission, mismanaging people/programs, choosing wrong future paths, being too effective at strategic war, or failing to adapt. The document argues the USAF risks becoming extinct unless it reverses trends threatening its viability and ability to evolve appropriately on external and internal challenges.
Vol3ch16
This document presents a research paper on Planetary Defense, which proposes establishing a system to protect Earth from catastrophic impacts by asteroids and comets. It discusses the threat posed by near-Earth objects, the social, economic and political implications of impacts, and recommends developing a three-tiered Planetary Defense System. The system would include detection subsystems to find threats, command and control systems, and mitigation subsystems to deflect objects, including kinetic impactors, mass drivers, solar sails and nuclear devices. It argues such a system could help ensure humanity's survival and have dual-use benefits from related technologies.
Vol3ch14
This document presents a research paper on space operations and a potential future system called the Global Area Strike System (GASS). It discusses issues around space operations in 2025, including manned vs unmanned systems and military vs cooperative operations. It then outlines the required capabilities for GASS, including timeliness, responsiveness, flexibility, and precision. It proposes an integrated system-of-systems for GASS using various weapon platforms and classes, including directed energy weapons, projectile weapons, and a transatmospheric vehicle. It concludes with concept of operations and recommendations.
Vol3ch13
This document provides a historical overview of unmanned aerial vehicles (UAVs) and their use by various militaries. It discusses early UAV development in the 1950s-1960s for reconnaissance and weapons delivery missions. During the Vietnam War, UAVs conducted thousands of reconnaissance missions with a high recovery rate. Experimental armed UAVs were also tested. Later, UAVs were used effectively by Israel in the 1970s-1980s and by the US during the Gulf War for reconnaissance. Following the Gulf War, the US began developing longer endurance UAVs like the Predator and Global Hawk to address reconnaissance needs. The document suggests expanding UAVs' role beyond reconnaissance to include lethal strike missions.
Vol3ch12
This document proposes an integrated hypersonic weapons platform called the S3 concept to fulfill three broad missions for US air and space forces in 2025: deliver decisive early blows, provide cost-effective in-theater dominance, and maintain access to space. The S3 concept involves three vehicles: the SHAAFT hypersonic attack aircraft, the SHMAC standoff hypersonic missile, and the SCREMAR reusable spaceplane. The SHAAFT would use a zero-stage flying wing to stage to Mach 3.5 and then cruise at Mach 12, able to launch the SHMAC missile or SCREMAR spaceplane. Together these vehicles aim to provide global reach, in-theater dominance, and access to space with
Vol3ch11
This document summarizes a research paper presented to Air Force 2025 that outlines special operations forces capabilities needed to conduct precision operations against weapons of mass destruction, high-value targets, and assets in the hypothetical world of 2025. The paper identifies communications, mobility, and destruction/neutralization as the top three enabling capabilities required for these missions. It then proposes various futuristic technologies that could fulfill requirements for these capabilities by 2025, such as stealth airlifters, extraction rockets, and targeting systems, to allow special operations forces to accomplish their missions with zero tolerance for error.
Vol3ch10
This document proposes a concept for Special Operations Regional Engagement (SORE) forces in 2025. The core capability of SORE forces would be engaging in less developed, first- and second-wave nations while not disrupting their evolution. SORE forces would exploit third-wave technology to operate effectively in these environments without introducing advanced technology prematurely. The proposed concept of operations involves SORE forces conducting defensive and offensive operations like training, advising, and assisting host nations. To enable these operations, the document outlines key tasks for SORE forces including recruitment, training, observation, communication, decision-making, countermeasures, and sustainment. It argues that SORE forces will need systems and technologies to complete these tasks while
Vol3ch09
This document proposes concepts and technologies for counterspace operations in 2025, including space detection, anti-satellite weapons, space interdiction nets, miniaturized satellites, satellite cloaking, kinetic and directed energy weapons. It outlines offensive and defensive counterspace architectures and recommends further analysis of miniaturization, stealth, detection and targeting concepts as well as kinetic and directed energy weapons. The goal is to maintain US space superiority as space becomes increasingly vital to national security and more countries and commercial entities access space.
More from Clifford Stone (20)
637118main khoshnevis presentation
- 1. Contour Crafting Simulation plan for planetary infrastructure buildup Berok Khoshnevis, Anders Carlson, Neil Leach, Madhu Thangavelu University of Southern California
- 2. What is Contour Crafting?
- 3. A CC machine
- 5. Strength of a 4-layer section
- 7. Vault structure implementation by CC
- 9. Planetary applications Basic infrastructure elements: – Landing pad – Blast protection wall – Roads – Shade walls – Hangars Other structures: – Human habitat – Green house – Laboratories – Fuel vessels
- 15. Large Lander - MALEO Site Office
- 17. Landing pad, apron and blast wall
- 20. Sulfur Concrete
- 21. Infrastructure Design Environmental Forces • Lander thrust • Micro-meteorites • Thermal issues – Low thermal conductivity – Regional variation – Sunlit vs. shaded – Diurnal • Dust • Vacuum • Moon gravity • Radiation (solar protons & galactic cosmic rays)
- 22. ISRU Materials: • Sulfur concrete • Molten regolith • Tensile reinforcement Methods: • Layered without formwork Infrastructure Design Materials and Methods
- 23. Boundary Conditions and Loadings: • Lander thrust and fuel heat • Solar energy • Structure / regolith interface Issues: • Repeated heating / thrust • Ejecta from fuel / dust • Hard landing • Micrometeorites • Buckling / cracking Infrastructure Design Landing Pad and Apron
- 24. Boundary Conditions and Loadings: • Rocket fuel heat and thrust • Ejecta from exhaust / dust • Structure / regolith interface Issues: • Nearby storage / facilities • Distant settlement • Shape • Deterioration Infrastructure Design Blast Wall DUST FUEL
- 25. Boundary Conditions and Loadings: • Solar energy • Rovers • Structure / regolith interface Issues: • Maximum payload • Traction • Buckling/cracking Infrastructure Design Roadways
- 26. Boundary Conditions and Loadings: • Self weight • Solar Energy • Micrometeorites • Structure / regolith Issues: • Thermal stress / strain • Stability • Crack propagation • Radiation protection Infrastructure Design Hangar / Storage SUN SHADESHADE
- 27. Four dissimilar problems, one unified tool. Abaqus / SIMULIA • Implicit and explicit solvers • Computational fluid dynamics • Coupled Lagrangian-Eulerian analyses • Heat transfer • Shape optimization • Shock, blast, contact, damaged plasticity, fracture, adaptive remeshing, etc. Infrastructure Design Analysis & Design
- 28. Dual use – terrestrial applications • Emergency shelters • Construction in regions with limited water supply • Autonomous shielding against radiation