Comparison between the dynamical properties of polymer concrete and grey cast iron for machine tool applications

摘要: Abstract In this paper, the complex modulus of polymer concrete and grey cast iron materials are measured compared in a frequency range up to 160 Hz. The technique that was employed for identification uses transient response beam like test specimens. contrast logarithmic decrement technique, proposed method utilises some hundreds measurement points parameters by curve fitting making use Nelder–Mead minimization algorithm. results along chosen obtained specimens diverse geometry. From these experimental data higher damping capacity with respect is evidenced within range, typically excited machine tool applications.