Second optimization stage of a composite quadrupole mass at high-speed rotation using finite element modeling.

This work shows the optimization process of a quadrupole mass at high-speed rotation using the finite element modeling (FEM). Such a mass should compose a gravitational signal generator device, which is intended to use in an experiment to measure the speed of gravity. The device must produce a tidal gravitational signal with a frequency of 3200 Hz. The gravitational wave detector Mario Schenberg is the first option as the detector of the signal. The previous steps of the project are briefly discussed, and the FEM simulations for the quadrupole mass are shown. An analysis of the mechanical stresses produced at high-speed rotation is presented. The most successful FEM simulation yields a favorable geometry for the inclusion of the magnetic suspension of the quadrupole mass. The results indicate the feasibility for the continuation of the project and subsequent construction of the real device. [ABSTRACT FROM AUTHOR]