Towards time domain finite element analysis of gravity gradient noise

M.G. Beker*, J.F.J. van den Brand, E. Hennes, D.S. Rabeling

*Corresponding author for this work

Research output: Contribution to journalConference article in journalAcademicpeer-review


Gravity gradient noise generated by seismic displacements constitute a limiting factor for the sensitivity of ground based gravitational wave detectors at frequencies below 10 Hz. We present a finite element framework to calculate the soil response to various excitations. The accompanying gravity gradients as a result of the seismic displacement field can then be evaluated. The framework is first shown to accurately model seismic waves in homogenous media. Calculations of the gravity gradient noise are then shown to be in agreement with previous analytical results. Finally results of gravity gradient noise from a single pulse excitation of a homogenous medium are discussed.
Original languageEnglish
Article number012034
Number of pages6
JournalJournal of Physics: Conference Series
Publication statusPublished - 2010
Externally publishedYes


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