Multi-directional tuned vibration absorber

Details Multi-directional tuned vibration absorber Multi-directional tuned vibration absorber

1996-09-13

2000-05-23

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Diverse resistance to vibration along different axes

2671415, 188378, 248557, F16M 100

Patent

active

060657421

ABSTRACT:
A Multi-Directional Tuned Vibration Absorber (MDTVA) (23) including a first tuning mass (32) vibrating at a first resonant frequency fn1 along a first axis, a second tuning mass (34) vibrating at the first resonant frequency along said first axis and also at a second resonant frequency fn2 along a second axis, a base member (21), a first spring (35) flexibly interconnected between the base member (21) and the first tuning mass (32), the first spring (35) substantially restricting motion of the first tuning mass (32) to motion along a first axis only, and a second spring (36) flexibly interconnected between the first tuning mass (32) and the second tuning mass (34), the second spring (36) substantially restricting relative motion between the first tuning mass (32) and second tuning mass (34), such that the relative motion of said second tuning mass (34) at said second frequency fn2 is along the second axis which is substantially perpendicular to the first axis. In another aspect, the first and second resonant frequencies fn1 and fn2 may be tuned independently by addition of wafer-like masses and/or adjustment of the position of the second tuning mass (34) and the MDTVA (23) can be used in a vehicle's isolation system.

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