A flexural wave absorption system includes a base member connected to a beam that may be subject to flexural waves, an arm member, connected to the base, disposed substantially in parallel alignment with the beam, a mass member connected to a distal end of the arm member, a piezoelectric patch, connected to the arm member, that generates electricity in response to a flexural wave propagating through the beam, and a shunting circuit, connected to the piezoelectric patch, that dissipates electricity generated by the piezoelectric patch to absorb the flexural wave.

Methods, systems and apparatuses are disclosed comprising a tunable multilayered array reinforcement system having a supramolecular adhesive embedded with nanoparticles that are reoriented on-demand in response to or in advance of vibrational effects in a moving or stationary structure.

Disclosed is a multi-modal and multi-degree-of-freedom piezoelectric active vibration isolation platform and a working method therefor. The piezoelectric active vibration isolation platform includes an upper platform, a lower platform, a control module, and four vibration isolation modules, where the vibration isolation module includes a passive vibration isolation unit and an active vibration isolation unit; the passive vibration isolation unit includes an upper connector, a lower connector, a cross Hooke hinge, and a first acceleration sensor; the active vibration isolation unit includes a fixed beam, a pre-tightening bolt, a second acceleration sensor, and a driving component; the platform can provide active vibration isolation for the longitudinal (axial) vibration and the bending vibration in any radial direction of a vibration isolation object, and has the advantages of fast response, resistance to electromagnetic interference, and light weight.

A leaf spring device for a motor vehicle, comprising a leaf spring unit made of a fiber composite plastic, and a piezo element arrangement which is attached to the leaf spring unit, wherein the piezo element arrangement is configured to generate an electric voltage in response to a deformation of the leaf spring unit.

An embedded damping vibration attenuation turning tool holder for deep cavity machining and a method includes a tool holder and a damper; one end of the tool holder is connected with a turning blade; a side surface of the tool holder is provided with a square cavity; the damper is in interference fit in the square cavity; the damper includes a mass block, an elastic member and piezoelectric ceramic; at least one surface of the mass block that is in contact with an inner wall of the square cavity is connected with the piezoelectric ceramic; the elastic member is arranged between the piezoelectric ceramic and the mass block; and the piezoelectric ceramic is used for generating interaction with the inner wall of the square cavity under a vibration action of the tool holder, so as to absorb the vibration to generate electric energy.