Patent ID: 6035981
Filing Date: 2000-03-14
Classification: F16F

Abstract:
A conservative passive mass damper, for broadband vibration suppression of vibrations from a vibration source, said mass damper comprising:a base connected to the vibration source;a tuned mass for stabilizing the vibration source, wherein said tuned mass has substantially less mass than the vibration source; andsaid spring assembly configured between said base and said tuned mass, wherein said spring assembly further comprises nonlinear springs with a high secant stiffness and a low tangent stiffness in a displacement range of said tuned mass, said spring assembly further comprising:a bottom plate connected to said base;a top plate connected to said bottom plate, wherein said bottom plate and top plate are configured with a plurality of matching recesses;a plurality of balls disposed between said matching recesses in said bottom plate and said top plate;a tower assembly connected to said top plate, wherein said tuned mass is attached to said tower assembly.