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6 results found
Fragmentation consequence analysis for LEO and GEO orbits DEBRIS

The simulations of the long term evolution of the space debris population, under realistic assumptions, show how the driving factor in the future environment will be mostly the breakup of large spacecraft and rocket bodies in LEO.

Italy

12/603-02

Istituto Fisica Aplicata...
Simplified models for aerothermodynamics analysis of space craft components: "design for demise"

Thousands of man-made objects are currently in orbit around the Earth. These range from active satellites to flecks of paint, via spent rocket stages and fragments of satellite debris. Due to the drag of the very thin high altitude atmosphere, these objects have slowly decaying orbits, and will eventually re-enter the Earth's thicker, lower atmosphere. Most will be destroyed on entry due to the aerothermal heating experienced at hypersonic velocities at altitudes between 40 and 80km. However, some objects reach the ground.

UK

12-605

FLUID GRAVITY...
BOdies UNder Connected Elastic Dynamics (BOUNCED)

The BOUNCED project has assessed the behaviour of elastic tethers within flexible link Active Debris Removal (ADR) systems. This has been achieved by solving a multidimensional set of linear equations, through the separation of dynamic modes; and the construction of analytic and numeric models of the resulting system. These models can be used to simulate the behaviour of both single and multi material tethers across the full lifetime of a tether mission, from pretension, through re-entry burn and free body motion post burn, to re-entry.

UK

13-090

Belstead Research Ltd.
End-Of-Life Disposal Concepts for Lagrange-Point and Highly Elliptical Orbit Missions

Libration Point Orbits (LPO) and Highly Elliptical Orbits (HEO) are often selected for astrophysics and solar terrestrial missions as they offer vantage points for the observation of the Earth, the Sun and the Universe. No guidelines currently exist for LPO and HEO missions' end-of-life; however, as current and future missions are planned to be placed on these orbits, it is a critical aspect to define a sustainable strategy for their disposal, with the objective to avoid interference with protected regions.

UK

12-602

University of Southampton
End-of-Life Disposal Concepts for Lagrange-Points and HEO Missions

The awareness of the risk of uncontrolled accumulation of man-­‐made objects became significant in the late 70's and since then, a number of space debris mitigation guidelines have been published by various organizations. The general aim is to reduce the growth of space debris by ensuring that space systems are designed, operated, and disposed in a manner that prevents them from generating debris throughout their lifetime, assuring the sustainable space utilization.

Italy

12-602

Dinamica
COBRA Extension of the IRIDES Experiment 13/702

The COBRA (COntactless deBRis Action) concept was studied under ESA contract and then internally by ESA, as part of ESA ́s SysNova technology assessment scheme which uses “technology challenges” and competitions to survey a comparatively large number of alternative solutions. The concept was originally proposed by an industrial consortium led by GMV form Spain with Politecnico di Milano and Thales Alenia Space from Italy. The concept came first in response to a challenge for mission concepts and technologies capable of providing a contactless Earth-bound object orbit modification system.

Spain

13/702

GMV

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