Dynamic behaviour analysis and optimisation of a rotary table transfer machine

A study on the dynamic behaviour of a rotary table transfer machine is discussed in this paper. Part modelling is performed through the application of finite element techniques. Experimental modal analysis is exploited for substructure updating. The assembled model is obtained using constraint equations and boundary conditions. Design modifications are proposed to enhance the dynamic behaviour of the assembly; a first comparison is provided facing the eigensolutions of the different models; an optimum solution is chosen as the final modified model. Field measurements of machining tool accelerations are taken as loading conditions. A second comparison between existing and modified assemblies is discussed through the forced responses.