Baseplate seismic vibrator design

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Dennis K. But over the last 30 years, ingenious new technology and equipment have improved the odds greatly. Seismology with its roots in the study of earthquakes is at the heart of the improvement. The basic concept of seismology is simple.
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Hydraulics Delivers Good Vibrations

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Study on dynamics of vibrator baseplate at low and high frequencies | JVE Journals

This is a non-provisional of U. In a geophysical survey, a seismic source can be carried by a truck and positioned at a predetermined location in an area of exploration. The seismic source can be a single axis vibratory source and can impart compressing P-waves into the earth once coupled to the earth and operated. A vibrator 10 according to the prior art is illustrated in FIG. The vibrator 10 transmits force into the ground using a baseplate 20 and a reaction mass With the vibrator 10 lowered, the weight of the vehicle holds the baseplate 20 engaged with the ground so seismic source signals can be transmitted into the earth.
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US8913465B2 - Seismic vibrator having composite baseplate - Google Patents

Journal of Vibroengineering, Vol. In order to figure out the dynamics response of vibrator baseplate and why baseplate performs poorly at high frequencies, a finite element model of vibrator-ground is developed to analyze acceleration, deformation and decoupling of the baseplate at low and high frequencies. Results show that the acceleration at low frequencies is in accordance with the function of hydraulic pressure.
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