Simulation and measurement of environmental influences on machines in frequency domain

Abstract Thermal errors of manufacturing machines induced by fluctuating environmental temperatures are one of the largest error sources in precision manufacturing. With the increased demand in high precision workpieces less thermal sensitive manufacturing machines are a requirement. In this paper a new simulative evaluation procedure of thermal tool centre point errors in frequency domain and its validation via measurements is presented. The approach allows evaluation of the thermal behaviour and the thermal errors influencing the positioning error of the machine. It is presented, that selective insulation of machine structure can reduce the amplitude of thermal errors at the thermal resonance frequency.