Integrated breakup modeling solutions from debrisat analysis

Mains, Deanna L.; Sorge, Marlon E.

doi:10.1016/j.jsse.2020.07.024

Cited by 1 publication

(1 citation statement)

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“…Other software programs like IMPACT [22,23] introduce other inputs in the breakup model to better characterize the physical properties distribution of the fragments: the type of object (i.e., hollow or compact), the material density or, in case of explosion, the amount of energy driving the explosion (e.g., chemical energy, pressure, electrical energy). Moreover, while in the SBM the standard condition for a complete fragmentation is that the kinetic energy of the projectile relative to the target divided by the target mass is greater than 40 J/g, IMPACT introduces a further value of 10 J/g to smooth the transition from a typical hypervelocity collision with large numbers of small fragments to lower energy collisions where most of the target object is broken into a few larger fragments [24].…”

Section: Introductionmentioning

confidence: 99%

Tuning of NASA Standard Breakup Model for Fragmentation Events Modelling

et al. 2021

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The continuous growth of space debris motivates the development and the improvement of tools that support the monitoring of a more and more congested space environment. Satellite breakup models play a key role to predict and analyze orbital debris evolution, and the NASA Standard Breakup Model represents a widely used reference, with current activities relevant to its evolution and improvements especially towards fragmentation of small mass spacecraft. From an operational perspective, an important point for fragmentation modelling concerns the tuning of the breakup model to achieve consistency with orbital data of observed fragments. In this framework, this paper proposes an iterative approach to estimate the model inputs, and in particular, the parents’ masses involved in a collision event. The iterative logic exploits the knowledge of Two Line Elements (TLE) of the fragments at some time after the event to adjust the input parameters of the breakup model with the objective of obtaining the same number of real fragments within a certain tolerance. Atmospheric re-entry is accounted for. As a result, the breakup model outputs a set of fragments whose statistical distribution, in terms of number and size, is consistent with the catalogued ones. The iterative approach is demonstrated for two different scenarios (i.e., catastrophic collision and non-catastrophic collision) using numerical simulations. Then, it is also applied to a real collision event.

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Section: Introductionmentioning

confidence: 99%