Drive shaft with array tuned absorber
View Patent ↗A vehicle driveline includes a tubular member ( 62 ) having an inside surface ( 64 ) and an axis, a mounting base ( 72 ) coupled to the tubular member ( 62 ), and a plurality of resonator members ( 74 ) each having a first end ( 80 ), a second end ( 82 ), and a center portion ( 84 ) interposed therebetween coupled to the mounting base and extending therefrom.
1. A vehicle driveline comprising:
a tubular member having an inside surface and an axis;
a first mounting base coupled to the tubular member;
a plurality of resonator members each having a first end, a second end, and a center portion interposed therebetween, wherein at least a portion of the resonator members are coupled to the first mounting base and extending therefrom, wherein each of the plurality and resonating members are constrained layer damping members having two layers of metal with a resin layer interposed therebetween; and
a second mounting base affixed to the tubular member, wherein the second ends of the plurality of resonator members are embedded in the second mounting base.
2. The driveline of claim 1 , wherein the plurality of resonating members includes at least twelve (12) resonating members, which resonating members are defined by outer dimensions that are generally the same.
3. The driveline of claim 1 , wherein each of the first ends of the plurality of resonator members are embedded in the first mounting base.
4. The driveline of claim 1 , wherein the second mounting base is positioned so as to be co-axially aligned with the first mounting base, and each of the plurality of resonator members extends longitudinally through the tubular member at a generally radial distance relative to the axis of the tubular member.
5. The driveline of claim 4 , wherein the second mounting base contacts only the plurality of resonator members and the inside surface of the tubular member.
6. The driveline of claim 1 , wherein each of the plurality of resonating members are tuned to resonate at about the same frequency.
7. The driveline of claim 1 , wherein each of the plurality of resonating members extend from the first mounting base generally parallel to the axis of the tabular member.
8. A vehicle driveline comprising
a tubular member having an inside surface and an axis;
a first mounting base coupled to the tubular member;
a plurality of resonator members each having a first end, a second end, and a center portion interposed therebetween;
a second mounting base affixed to the tubular member; and
a damping portion;
wherein at least a portion of the resonator members are coupled to the first mounting base and extending therefrom;
wherein the second ends of the plurality of resonator members are embedded in the second mounting base; and
wherein at least a portion of the plurality of resonator members are embedded in the damping portion.
9. The driveline of claim 8 , wherein the damping portion is in contact with the inside surface of the tubular member.