Effects of elastic and damping features of mechanical systems on amplitude frequency characteristics

Abstract

In determining the complex frequency character-istics of mechanical systems, the elastic and radiation fea-tures of the inter–element contact layers need to be consid-ered that will have on influence an the transfer function. To investigate the characteristics of details contact the meth-ods of transient mechanical impedance was used. Theoreti-cal study is presented to assess the significance of micro-contact surface roughness and of the threaded contact ele-ments on the character of complex mechanical resistance. For the described contact elements, amplitude frequency characteristic is used for the elastic features of mechanical impedance. Using the experimental results, the influence of threaded joint on transfer system function and its fre-quency characteristics are determined.