Endurance Tests on a Colloidal Damper Destined to Vehicle Suspension

摘要: Endurance tests on a colloidal damper destined to vehicle suspension are performed. Such absorber represents an ecological application of nano-damping; it employs the hysteresis which occurs when water is forced penetrate and then naturally exudes from nanoporous silica gel matrix, modified become liquid-repellent. Damping performances decrease at increasing number working cycles, partially since grains that undergo gradual fatigue fracture able escape packing used seal test chamber, due alone, accompanied by enhancement hydrophilic silanol groups surface pore size redistribution. In order augment damper’s life, introduced inside tank separated filter main cylinder, in only supplied. One discusses influence filtration variation life versus ratio pore’s diameter mean particles.