Abstract: A directional vibration control apparatus, which includes a tunable vibration absorber (TVA) for a vibratory compactor machine is provided. The TVA includes a frame mounting structure that is configured to mechanically interface with a frame of the vibratory compactor to provide a fixed attachment of the TVA to the frame of the vibratory compactor, a TVA carrier that extends from the frame mounting structure into an interior portion of a drum of the vibratory compactor machine, a resilient element that includes a first portion that is fixedly attached relative to the TVA carrier and a second portion that includes a degree of freedom of movement relative to the TVA carrier, and a mass that is attached to the second portion of the resilient element and that includes the degree of freedom of movement relative to the TVA carrier.

Abstract: 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.

Abstract: A resonator assembly for a surface compaction machine comprising a resonator housing (36) defining an internal cavity, the resonator housing comprising a first head plate (242) comprising a plurality of first cutouts (44); and a plurality of first extension tubes (246), wherein each first extension tube of the plurality of first extension tubes is coupled to the first head plate around a corresponding first cutout, wherein each first cutout forms an acoustic passage between the internal cavity and an exterior of the resonator housing to attenuate sound around the internal cavity.

Abstract: A vibratory compaction machine includes one or more vibratory energy converter assemblies. Each vibratory energy converter assembly includes a housing coupled to the vibratory compaction machine, which transfers vibration energy from an eccentric vibration system of the vibratory compaction machine to the vibratory energy converter assembly. Each vibratory energy converter assembly includes an actuator that is carried by the housing. The actuator has a translational degree of freedom of movement with respect to the housing, and vibration of the housing by the vibratory compaction machine causes movement of the actuator with respect to the housing in a first direction. Each vibratory energy converter assembly includes a generator subassembly to convert mechanical vibratory energy of the movement of the actuator into electrical energy.

Abstract: A directional vibration control apparatus, which includes a tunable vibration absorber (TVA) for a vibratory compactor machine is provided. The TVA includes a frame mounting structure that is configured to mechanically interface with a frame of the vibratory compactor to provide a fixed attachment of the TVA to the frame of the vibratory compactor, a TVA carrier that extends from the frame mounting structure into an interior portion of a drum of the vibratory compactor machine, a resilient element that includes a first portion that is fixedly attached relative to the TVA carrier and a second portion that includes a degree of freedom of movement relative to the TVA carrier, and a mass that is attached to the second portion of the resilient element and that includes the degree of freedom of movement relative to the TVA carrier.

Abstract: 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.