AMP - Advanced Manufacturing Park

Dynamic Analysis

Within machining, performance limits are normally constrained by "chatters." Dynamic analysis allows the performance of a given system to be improved by increasing the "chatter threshold," or the amount of vibration that can be sustained. AMRC engineers primarily use dynamic analysis to decrease machining times by examining tooling strategy and machine-tool dynamics. By using cost and quality as drivers, the AMRC are introducing step-changing technologies.

Chatter is a form of self-excited vibration in machining that can cause damage to cutting tools, spindles and work pieces. With advances in cutting tool and machine tool technology, in many machining processes chatter becomes the limiting factor when trying to optimise productivity.

Dynamic analysis can be used to stabilise unstable processes and predict optimum parameters and tooling set-ups. Through an understanding of the dynamics of the milling process large productivity gains can be made and chatter can be eradicated. This understanding is gained through time and frequency domain modelling of the milling process and modal analysis of the machine tool and cutting tool set-up.

Dynamic analysis is performed at the AMRC