Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"meteoroid"”.
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Meteoroid damage to a large space telescope mirror
Thesis. 1976. B.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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The response of a single wall space structure to impact by cometary meteoroids of various shapes
… 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, and that the momentum of the meteoroid is negligible after impact. The stress at the origin is reduced to a single definite …
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Observation and Modelling of Meter-Class Earth impacting Asteroids
… of a wide variety of sizes, from micron-sized meteoroid stream and 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. …
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Assessment of damage to thermal protection systems due to micrometeoroid and orbital debris impacts
… impacts that cause mission failure due to micro-meteoroid and orbital debris damage is presented. This number differs based on the mission, so a methodology is presented to solve for this number. The methodology is comprised of two branches, the first branch solves for the critical depth and the …
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Novel Finite Element Techniques to Expedite the Implementation and Computational Time of 3D Structural Models Showcased Through Space Habitat
… behavior under disturbance events, such as meteoroid impacts and moonquakes. The SOS framework incorporates damageable and repairable capabilities, allowing the evaluation of the effectiveness of safety controls in restoring a damaged habitat to a functional operational level after a …
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Micrometeroid, orbital debris, and shielding analysis for the Soft X-ray Camera (SXC) of the High Energy Transient Explorer (HETE-2) spacecraft
… Once in Earth orbit, HETE-2 will encounter micrometeoroids and orbital debris. Micrometeoroids are the smallest natural particles in space and orbital debris are any inoperative, manmade objects remaining in Earth orbit. The major concern for CCDs in the SXC is that they are exposed to the …
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Morning light : the secret history of the Tagish Lake Fireball
[Spoiler alert:] On January 18, 2000, a meteoroid 4 meters in diameter hit the Earth's atmosphere and exploded over the Yukon Territory in northern Canada. The size of the fireball and the contrail that it left behind caught the attention of meteoriticists, who suspected it was a carbonaceous …
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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 …