Modeling and analysis of a nonlinear elastomer impact model with damping mechanism

The author considers the modeling of a nonlinear elastomer impact problem when a mass experiences a collision with the contact pad mounted on the underlying linear dynamic structure. The contact pad, which consists of the viscoelastic elastomer, is modeled by a nonlinear contact stiffness and nonlinear contact damper. The underlying dynamic structure is measured by a Fourier spectral analyzer and its analytical form is utilized in modeling and analyzing the whole dynamic impact problem. The impact force profiles are predicted and analyzed in terms of pulse duration, time-to-peak force, and peak force. The damping mechanism and its hysteresis phenomena are also discussed. Applications of this impact model can be found in the design of impact printers