TUDIES ON THE VALUATION OF THE WORKING SAFETY OF THE GANTRY CRANES USING VIBRATORY ANALYSIS

Abstract

For the calculation, the designing and the checking of the gantry crane’s truss, the actual normative contain calculus notes and a succession of theoretical and experimental check absolutely necessary. Generally they are based on classical calculations of strength of materials, on the fundamental notions of the theory of elasticity but also on modern techniques by using specialized software (ANSYS, NASTRAN, FTOOL, ABAQUS etc.)The actual specially normative do not contain indications concerning the vibratory state of the cranes. Practice shows that the beginning of a work which gets out the normal parameters ppear those vibratory tough. The present paper deals with some aspects of great technical importance meaning, using the experimental modal analysis and an operational analysis which are useful to the periodical check of the gantry cranes.