Damped vibration of the system of changing the crane boom radius

Abstract

Abstract. This study formulates and solves the problem of transverse damped vibration in the system of changing the boom radius in a truck crane with advanced cylinder design for controlling the boom radius. The dissipation of vibration energy in the model adopted in the study occurs as a result of internal damping of the viscoelastic material (rheological Kelvin-Voigt model) of the beams that model the system and movement resistance in the supports of the cylinder and crane boom to the bodywork frame of the crane. Damped frequencies of vibrations and degree of vibration amplitude decay were calculated. The study also presents eigenvalues of system vibration with respect to changes in damping coefficients and system geometry for a selected load.

Free vibration analysis of a DST-0285 truck crane considering changes in the system load configuration

“…The value of the boom support stiffness varied within 4-5x10 6 [N/m]. The model took into account the constant value of elasticity of the chassis support (support actuators) [7].…”

“…In the paper [6] was analyzed of transverse damped vibrations in the system of changing the boom radius of a DST-0285 truck crane. Damped frequencies of vibrations and degree of amplitude decay of studied system were calculated.…”

Evaluation of changes in elastic properties of animal trabecular bone for mechanical tests depending on the storage method

“…The analysis of the effect of structural damping called "constructional damping" modelled with rotational dampers has been demonstrated in preliminary studies Sochacki andBold (2014, 2015a). The effect of damping of supports and internal damping of material on vibration in the system for changing the boom radius has been discussed in the paper Sochacki et al (2015b).…”