Global ETD Search
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Showing 1 to 8 of 8 for “"meteoroids"”.
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Fluxes of Sporadic Meteoroids from Optical Measurements
The purpose of this study was to develop a process to measure the mass distribution index, the speed distribution, and the flux of the sporadic meteor sources using an electro-optical system. Data was recorded on two nights, April 27 and May 6, 2006, and the system was tested by measuring the flux …
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The response of a single wall space structure to impact by cometary meteoroids of various shapes
Linear, small deflection plate theory is used to study the stress at the contact axis and the deflection of an infinite plate caused by the impact of an axisymmetric cometary meteoroid. The analysis assumes that momentum exchange is the primary mechanism, that the time of exchange is instantaneous, …
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Observation and Modelling of Meter-Class Earth impacting Asteroids
… sporadic meteor dust, to meter-sized and larger meteoroids observed as fireballs. Fireball event characteristics directly point to the properties and structure of the parent body from which the meteoroid originated. In-atmosphere fireball data paired with in-space observations bring much context …
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Graphene Nano-Composites For Hypervelocity Impact Applications
… is a harsh environment cluttered with natural meteoroids and man-made debris, which can travel at velocities approaching 15 km/s. Most space activities within the LEO will encounter this environment. Thus, the spacecraft and its hardware must be designed to survive debris impact. This research …
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Extra-terrestrial nuclear power stations : transportation and operation
… involves protecting the reactor from damage from meteoroids. The reactor will then land through propulsive means on the Moon or Mars. Landing a reactor will also require a safety analysis to determine the consequences of a landing accident on the Moon or Mars. On the surface, the reactor must be …
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Testing The Gefion Family As A Possible Parent Body For The L-Chondrite Meteorites
… favorably to deliver the relevant amounts of meteoroids to the Earth, or will possess a surface mineralogy compatible with that of the L-chondrite meteorites. A probable parent body will meet both criteria (Gaffey, 2011).</p> <p> Based on research performed on fossil L-chondrite meteorites, …
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Active Rigidization of Carbon Fiber Reinforced Composites via Internal Resistive Heating
… atomic oxygen, and impacts from space debris and meteoroids. They must also exhibit stable operation over a useful storage and mission life. Methods for causing rigidization in inflatable spacecraft include both passive and active techniques. Passive techniques rely on an uncontrolled, unprovoked …
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Investigations of Hypervelocity Impact Physics
… from orbital debris and naturally occurring meteoroids. While objects larger than 10 cm are routinely tracked and avoided, collisions inevitably occur with smaller objects at relative velocities exceeding 10 km/s. Such hypervelocity impacts (HVI) create immense shock pressures and can melt or …