Isolation of a body of a vehicle from vibrational frequencies introduced via electronic axle drive units vehicle is provided. For example, one or more embodiments described herein can comprise a vibration isolation device for a powertrain of an electric vehicle is provided. The vibration isolation device can comprise an inner core configured to operatively attach to an electronic axle drive unit for an axle of the electric vehicle. The vibration isolation device also can comprise a mass dampener integrated with an insulator, resulting in a dual isolation mass that encircles the inner core. Further, the vibration isolation device can comprise an outer sleeve that encircles the dual isolation mass and the inner core.

Isolation of a body of a vehicle from vibrational frequencies introduced via electronic axle drive units vehicle is provided. For example, one or more embodiments described herein can comprise a vibration isolation device for a powertrain of an electric vehicle is provided. The vibration isolation device can comprise an inner core configured to operatively attach to an electronic axle drive unit for an axle of the electric vehicle. The vibration isolation device also can comprise a mass dampener integrated with an insulator, resulting in a dual isolation mass that encircles the inner core. Further, the vibration isolation device can comprise an outer sleeve that encircles the dual isolation mass and the inner core.

A hyperdamping inclusion under constraint with large, broadband frequency damping properties is disclosed. The inclusion includes materials under near-buckling constraint such that fundamental eigenfrequency vanishes at near-buckling.

A vibration damper for damping vibrations of a motor vehicle component is disclosed. The vibration damper is passed through by a transverse center plane, and the vibration damper includes a retention apparatus that can be fixed to a motor vehicle component. In embodiments, the vibration damper has at least two receptors that each have an inner side facing the transverse center plane and an outer side facing away from the transverse center plane, has a damper mass with a central longitudinal axis, and has at least two elastomer springs. In embodiments, the elastomer springs couple the damper mass to the receptors with an ability to vibrate, and at least one of the elastomer springs has a connection portion, between the damper mass and respective receptor, that extends at least mainly externally with respect to the respective receptor.

Anti-vibration mount comprising a first frame, a second frame, an elastomeric main body connecting the first frame and the second frame, the elastomeric main body allowing relative displacements of the second frame relative to the first frame in a first direction of vibration and in a second direction of vibration perpendicular to the first direction of vibration, the elastomeric main body also being suitable for mounting a weight in the first direction of vibration. An inertia body is connected to the first frame by an elastic suspension interposed between the inertia body and the first frame along the second direction of vibration. An elastomeric lateral abutment body is interposed between the first frame and the inertia body to limit the relative displacements of the second frame with respect to the first frame in the second direction of vibration. The inertia body has a natural frequency lower than 800 Hz.

A vibration damping apparatus configured to damp a vibration of a target member includes a mass body, a base disposed on the target member, a support member disposed on the base and configured to support the mass body, a housing disposed on the base so as to surround the support member, an elastic member disposed so as to form a space in the housing and configured to apply a force to the support member, and a control unit configured to control a pressure of a fluid in the space by supplying the fluid to the space based on a vibration state of the target member.

A vibration damping apparatus configured to damp a vibration of a target member includes a mass body, a base disposed on the target member, a support member disposed on the base and configured to support the mass body, a housing disposed on the base so as to surround the support member, an elastic member disposed so as to form a space in the housing and configured to apply a force to the support member, and a control unit configured to control a pressure of a fluid in the space by supplying the fluid to the space based on a vibration state of the target member.

A dynamic vibration absorber for reducing steering wheel vibration. The vibration absorber includes a resilient member that includes a resilient member inner surface that defines a center cavity that is configured to receive a steering column of a vehicle that generates vibration that is transferred to a steering wheel via the steering column, the center cavity being substantially coaxial with the steering column when attached thereto. The resilient member includes at least one resilient member outer surface that defines a resilient member outer diameter. The vibration absorber includes a rigid body that engages and is supported by the resilient member and that includes six degrees of freedom of movement relative to the steering column, the rigid body including a rigid body inner surface that defines a rigid body center cavity.

Various embodiments provide a bush for isolating vibrations, the bush comprising: a first anchor part defining a longitudinal axis; a second anchor part disposed coaxially with respect to the first anchor part; a first resilient body operably engaged with the first anchor part; a second resilient body operably engaged with the second anchor part; and an inertial mass element disposed between the first anchor part and the second anchor part. The inertial mass element is independently connected to the first resilient body and the second resilient body. Also, the first resilient body, second resilient body and inertial mass element are arranged to isolate vibrations between the first anchor part and the second anchor part within a predetermined operational frequency range. Further, the inertial mass element is arranged to isolate the first anchor part and second anchor part from dynamic stiffness increases associated with eigenmodes of the first resilient body and the second resilient body in the predetermined operational frequency range.

Various embodiments provide a bush for isolating vibrations, the bush comprising: a first anchor part defining a longitudinal axis; a second anchor part disposed coaxially with respect to the first anchor part; a first resilient body operably engaged with the first anchor part; a second resilient body operably engaged with the second anchor part; and an inertial mass element disposed between the first anchor part and the second anchor part. The inertial mass element is independently connected to the first resilient body and the second resilient body. Also, the first resilient body, second resilient body and inertial mass element are arranged to isolate vibrations between the first anchor part and the second anchor part within a predetermined operational frequency range. Further, the inertial mass element is arranged to isolate the first anchor part and second anchor part from dynamic stiffness increases associated with eigenmodes of the first resilient body and the second resilient body in the predetermined operational frequency range.