Dynamic Analyze for the Chassis-Cab System Having Elastic Intermediate Link (Elastic Interface)

Abstract

Among the machinery generating occupational diseases due to the vibrations transmitted to human body the portable hand-held construction equipment such as drill hammers and demolition hammers are classified. In order to characterize the level of vibrations transmitted to the human body and the exposure time, in the frame of ICECON Bucharest specific tests upon the hammer manufactured by the British Company Kango have been performed. The measurements have been carried out with the machine operating at rated working parameters, determining the accelerations in the three orthogonal directions defined by x, y and z axes. Aiming measuring the vibrations the Bruel & Kjaer chain has been used and figures illustrate the processed results as well as the permissible vibration limits for different exposure times.