: any of a breed of very small roundheaded dogs that occur in short-coated and long-coated varieties.See Chihuahua defined for English-language learners. See Chihuahua defined for kids. ADVERTISEMENT. any of a breed of very small roundheaded dogs that occur in short-coated and long-coated varieties. See Chihuahua defined for English-language learners. See Chihuahua defined for kids. ADVERTISEMENT.
3) Critically damped: [math]x(t) = (A + Bt)e^{- \gamma t}[/math] This is the optimally damped case, where the damping coefficient is just large enough to completely quell the oscillations, so the oscillator returns to zero in the least amount of time possible. 4) Overdamped: [math]x(t) = Ae^{- \gamma_{1}t} + Be^{- \gamma_{2}t}[/math]
The mass damper is a weight (disk) suspended in a cylinder between two springs with different spring constants positioned with the stroke axis parallel to the direction that the system needs to be damped.