An impact absorber employs dilatant (shear responsive) fluid that is subjected to a controlled, low amplitude, high frequency oscillatory stress which controls the stiffness of the fluid. Piezoelectric transducers, voice coils, and other forms of transducers may be used to apply controlled vibratory...http://www.google.es/patents/US7896019?utm_source=gb-gplus-sharePatente US7896019 - Active controlled energy absorber using responsive fluids
Active controlled energy absorber using responsive fluids
