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NASA

NASA

The National Aeronautics and Space Administration (NASA) is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research. NASA's mission statement is to pioneer the future in space exploration, scientific discovery and aeronautics research.

 

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Collin Kriner

Collin Kriner

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which is due to lightweight and high operation accelerations, is considered as constraint for the system optimization. The kinematic redundancy is integrated into the optimization formulation.

Article: Maximum-dynamic-payload t...
Source: ScienceDirect.com

The kinematic redundancy is integrated into the optimization formulation. The maximum-dynamic-payload trajectory is determined through optimization in which a planar FRM is employed as an example. This method is useful especially for FRMs performing repeated point-to-point operations.

Article: Maximum-dynamic-payload t...
Source: ScienceDirect.com

A finite-element model is presented for describing the dynamics of the system considering the added payload and the flexibility of the FRM. Different from rigid-body manipulators, vibration deformation, which is due to lightweight and high operation accelerations, is considered as constraint for the system optimization.

Article: Maximum-dynamic-payload t...
Source: ScienceDirect.com

High payload-to-mass ratio is one of the advantages of flexible robot manipulators. For a given point-to-point task, the maximum dynamic payload-carrying capacity of a flexible redundant robot manipulator (FRM) is established in the paper.

Article: Maximum-dynamic-payload t...
Source: ScienceDirect.com

The company will provide standard interface options for a range of small spacecraft, including the CalPoly PPOD canister for CubeSat-class spacecraft as well as dispensers to launch 6U, 12U and 24U nano spacecraft.

Article: Company To Focus On Small...
Source: AVIATION WEEK

Currently, we are not talking officialy about discharging payloads. There are some regulatory issues that are involved with dropping something out of a vehicle at 100km that we have not resolved at this point.

Article: ITAR / Payload trajectori...
Source: International Space Fello...

High launch angles are desirable from the standpoint of minimizing TPS mass. However, for ballistic trajectories, high launch angles require a large propellant mass to achieve a stable circular orbit. This effort performs aerothermal and trajectory analyses on a nominal 10 kg payload launched from 16 km altitude airborne platform into a 200 km circular orbit.

Article: Aerothermal and Trajector...
Source: Scitation

Since most projectiles carrying liquid payloads are spin stabilized with high spin rates, the moment contribution of the liquid to the angular motion of the projectile can be found using linear theory. After developing an integrated dynamic model for a projectile with a liquid payload, example trajectory characteristics are shown that exhibit typical dynamic behavior of a projectile with a liquid payload.

Article: Adding Liquid Payloads Ef...
Source: U.S. Department of Defens...

For example, for the missile warning or Overhead Persistent Infra-Red (OPIR) mission, the Air Force will demonstrate and buy down risk for the first WFOV OPIR sensor with CHIRP (SMC WFOV sensor) launching September 9, 2011, three years after contract award, on an Orbital Sciences Corporation (OSC) STAR 2.4 Commercial ComSat for SES-World Skies.

Article: Space and Missile Systems...
Source: Hosted Payload

Although CHIRP specifically contracted with SES-World Skies, HPO has been in contact with other major geosynchronous (GEO) and Low Earth Orbit (LEO) commercial satellite providers to discuss future hosted payload options.

Article: Space and Missile Systems...
Source: Hosted Payload

We're taking about 2,000 pounds of science equipment, we're taking hygiene items, we're taking clothing, we're taking thousands of pounds of spare parts for the different systems, life support system, the electrical system, the computer system and so forth.

Article: Spaceflight Now | STS-135...
Source: Spaceflight Now
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