A deuterium fusion system is proposed that is based on the induction of fusion through a nonequilibrium thermodynamical configuration. Mechanical excitation using ultrasound is applied to (a) a palladium electrode with deuterium-containing liquid, (b) a mixture of palladium powder and deuterium-containing liquid, and (c) a system of palladium and a highly compressed deuterium gas that approximates a deuterium solid. The ultrasound, when coupled with the medium of these systems, instantaneously creates a high temperature and pressure that would induce fusion between deuterons.